observations

Create Observation

post
/organizations/{organizationId}/fhir/4/Observation

Measurements and simple assertions made about a patient, device or other subject.

Request

Headers

content-type*stringapplication/json|application/json+fhirapplication/json
log-cdatastring
log-cdata-formatstringkv|jsonkv
AuthorizationstringBearer <token>

Params

organizationId*string|stringid|slug

Body

resourceType*This is a Observation resource
ididThe logical id of the resource, as used in the URL for the resource. Once assigned, this value never changes.
metaMetaThe metadata about the resource. This is content that is maintained by the infrastructure. Changes to the content might not always be associated with version changes to the resource.
implicitRulesuriA reference to a set of rules that were followed when the resource was constructed, and which must be understood when processing the content. Often, this is a reference to an implementation guide that defines the special rules along with other profiles etc.
languagecodeThe base language in which the resource is written.
textNarrativeA human-readable narrative that contains a summary of the resource and can be used to represent the content of the resource to a human. The narrative need not encode all the structured data, but is required to contain sufficient detail to make it "clinically safe" for a human to just read the narrative. Resource definitions may define what content should be represented in the narrative to ensure clinical safety.
containedarray(ResourceList)These resources do not have an independent existence apart from the resource that contains them - they cannot be identified independently, and nor can they have their own independent transaction scope.
extensionarray(Extension)May be used to represent additional information that is not part of the basic definition of the resource. To make the use of extensions safe and manageable, there is a strict set of governance applied to the definition and use of extensions. Though any implementer can define an extension, there is a set of requirements that SHALL be met as part of the definition of the extension.
modifierExtensionarray(Extension)May be used to represent additional information that is not part of the basic definition of the resource and that modifies the understanding of the element that contains it and/or the understanding of the containing element's descendants. Usually modifier elements provide negation or qualification. To make the use of extensions safe and manageable, there is a strict set of governance applied to the definition and use of extensions. Though any implementer is allowed to define an extension, there is a set of requirements that SHALL be met as part of the definition of the extension. Applications processing a resource are required to check for modifier extensions. Modifier extensions SHALL NOT change the meaning of any elements on Resource or DomainResource (including cannot change the meaning of modifierExtension itself).
identifierarray(Identifier)A unique identifier assigned to this observation.
basedOnarray(Reference)A plan, proposal or order that is fulfilled in whole or in part by this event. For example, a MedicationRequest may require a patient to have laboratory test performed before it is dispensed.
partOfarray(Reference)A larger event of which this particular Observation is a component or step. For example, an observation as part of a procedure.
statusregistered|preliminary|final|amended|corrected|cancelled|entered-in-error|unknownThe status of the result value.
categoryarray(CodeableConcept)A code that classifies the general type of observation being made.
code*CodeableConceptDescribes what was observed. Sometimes this is called the observation "name".
subjectReferenceThe patient, or group of patients, location, or device this observation is about and into whose record the observation is placed. If the actual focus of the observation is different from the subject (or a sample of, part, or region of the subject), the `focus` element or the `code` itself specifies the actual focus of the observation.
focusarray(Reference)The actual focus of an observation when it is not the patient of record representing something or someone associated with the patient such as a spouse, parent, fetus, or donor. For example, fetus observations in a mother's record. The focus of an observation could also be an existing condition, an intervention, the subject's diet, another observation of the subject, or a body structure such as tumor or implanted device. An example use case would be using the Observation resource to capture whether the mother is trained to change her child's tracheostomy tube. In this example, the child is the patient of record and the mother is the focus.
encounterReferenceThe healthcare event (e.g. a patient and healthcare provider interaction) during which this observation is made.
effectiveDateTimestringThe time or time-period the observed value is asserted as being true. For biological subjects - e.g. human patients - this is usually called the "physiologically relevant time". This is usually either the time of the procedure or of specimen collection, but very often the source of the date/time is not known, only the date/time itself.
effectivePeriodPeriodThe time or time-period the observed value is asserted as being true. For biological subjects - e.g. human patients - this is usually called the "physiologically relevant time". This is usually either the time of the procedure or of specimen collection, but very often the source of the date/time is not known, only the date/time itself.
effectiveTimingTimingThe time or time-period the observed value is asserted as being true. For biological subjects - e.g. human patients - this is usually called the "physiologically relevant time". This is usually either the time of the procedure or of specimen collection, but very often the source of the date/time is not known, only the date/time itself.
effectiveInstantstringThe time or time-period the observed value is asserted as being true. For biological subjects - e.g. human patients - this is usually called the "physiologically relevant time". This is usually either the time of the procedure or of specimen collection, but very often the source of the date/time is not known, only the date/time itself.
issuedinstantThe date and time this version of the observation was made available to providers, typically after the results have been reviewed and verified.
performerarray(Reference)Who was responsible for asserting the observed value as "true".
valueQuantityQuantityThe information determined as a result of making the observation, if the information has a simple value.
valueCodeableConceptCodeableConceptThe information determined as a result of making the observation, if the information has a simple value.
valueStringstringThe information determined as a result of making the observation, if the information has a simple value.
valueBooleanbooleanThe information determined as a result of making the observation, if the information has a simple value.
valueIntegernumberThe information determined as a result of making the observation, if the information has a simple value.
valueRangeRangeThe information determined as a result of making the observation, if the information has a simple value.
valueRatioRatioThe information determined as a result of making the observation, if the information has a simple value.
valueSampledDataSampledDataThe information determined as a result of making the observation, if the information has a simple value.
valueTimestringThe information determined as a result of making the observation, if the information has a simple value.
valueDateTimestringThe information determined as a result of making the observation, if the information has a simple value.
valuePeriodPeriodThe information determined as a result of making the observation, if the information has a simple value.
dataAbsentReasonCodeableConceptProvides a reason why the expected value in the element Observation.value[x] is missing.
interpretationarray(CodeableConcept)A categorical assessment of an observation value. For example, high, low, normal.
notearray(Annotation)Comments about the observation or the results.
bodySiteCodeableConceptIndicates the site on the subject's body where the observation was made (i.e. the target site).
methodCodeableConceptIndicates the mechanism used to perform the observation.
specimenReferenceThe specimen that was used when this observation was made.
deviceReferenceThe device used to generate the observation data.
referenceRangearray(Observation_ReferenceRange)Guidance on how to interpret the value by comparison to a normal or recommended range. Multiple reference ranges are interpreted as an "OR". In other words, to represent two distinct target populations, two `referenceRange` elements would be used.
hasMemberarray(Reference)This observation is a group observation (e.g. a battery, a panel of tests, a set of vital sign measurements) that includes the target as a member of the group.
derivedFromarray(Reference)The target resource that represents a measurement from which this observation value is derived. For example, a calculated anion gap or a fetal measurement based on an ultrasound image.
componentarray(Observation_Component)Some observations have multiple component observations. These component observations are expressed as separate code value pairs that share the same attributes. Examples include systolic and diastolic component observations for blood pressure measurement and multiple component observations for genetics observations.

Response

Patch Observation

patch
/organizations/{organizationId}/fhir/4/Observation/{resourceId}

Measurements and simple assertions made about a patient, device or other subject.

Request

Headers

content-type*stringapplication/json-patch+jsonapplication/json-patch+json
log-cdatastring
log-cdata-formatstringkv|jsonkv
AuthorizationstringBearer <token>

Params

organizationId*string|stringid|slug
resourceId*

Body

resourceType*This is a Observation resource
ididThe logical id of the resource, as used in the URL for the resource. Once assigned, this value never changes.
metaMetaThe metadata about the resource. This is content that is maintained by the infrastructure. Changes to the content might not always be associated with version changes to the resource.
implicitRulesuriA reference to a set of rules that were followed when the resource was constructed, and which must be understood when processing the content. Often, this is a reference to an implementation guide that defines the special rules along with other profiles etc.
languagecodeThe base language in which the resource is written.
textNarrativeA human-readable narrative that contains a summary of the resource and can be used to represent the content of the resource to a human. The narrative need not encode all the structured data, but is required to contain sufficient detail to make it "clinically safe" for a human to just read the narrative. Resource definitions may define what content should be represented in the narrative to ensure clinical safety.
containedarray(ResourceList)These resources do not have an independent existence apart from the resource that contains them - they cannot be identified independently, and nor can they have their own independent transaction scope.
extensionarray(Extension)May be used to represent additional information that is not part of the basic definition of the resource. To make the use of extensions safe and manageable, there is a strict set of governance applied to the definition and use of extensions. Though any implementer can define an extension, there is a set of requirements that SHALL be met as part of the definition of the extension.
modifierExtensionarray(Extension)May be used to represent additional information that is not part of the basic definition of the resource and that modifies the understanding of the element that contains it and/or the understanding of the containing element's descendants. Usually modifier elements provide negation or qualification. To make the use of extensions safe and manageable, there is a strict set of governance applied to the definition and use of extensions. Though any implementer is allowed to define an extension, there is a set of requirements that SHALL be met as part of the definition of the extension. Applications processing a resource are required to check for modifier extensions. Modifier extensions SHALL NOT change the meaning of any elements on Resource or DomainResource (including cannot change the meaning of modifierExtension itself).
identifierarray(Identifier)A unique identifier assigned to this observation.
basedOnarray(Reference)A plan, proposal or order that is fulfilled in whole or in part by this event. For example, a MedicationRequest may require a patient to have laboratory test performed before it is dispensed.
partOfarray(Reference)A larger event of which this particular Observation is a component or step. For example, an observation as part of a procedure.
statusregistered|preliminary|final|amended|corrected|cancelled|entered-in-error|unknownThe status of the result value.
categoryarray(CodeableConcept)A code that classifies the general type of observation being made.
code*CodeableConceptDescribes what was observed. Sometimes this is called the observation "name".
subjectReferenceThe patient, or group of patients, location, or device this observation is about and into whose record the observation is placed. If the actual focus of the observation is different from the subject (or a sample of, part, or region of the subject), the `focus` element or the `code` itself specifies the actual focus of the observation.
focusarray(Reference)The actual focus of an observation when it is not the patient of record representing something or someone associated with the patient such as a spouse, parent, fetus, or donor. For example, fetus observations in a mother's record. The focus of an observation could also be an existing condition, an intervention, the subject's diet, another observation of the subject, or a body structure such as tumor or implanted device. An example use case would be using the Observation resource to capture whether the mother is trained to change her child's tracheostomy tube. In this example, the child is the patient of record and the mother is the focus.
encounterReferenceThe healthcare event (e.g. a patient and healthcare provider interaction) during which this observation is made.
effectiveDateTimestringThe time or time-period the observed value is asserted as being true. For biological subjects - e.g. human patients - this is usually called the "physiologically relevant time". This is usually either the time of the procedure or of specimen collection, but very often the source of the date/time is not known, only the date/time itself.
effectivePeriodPeriodThe time or time-period the observed value is asserted as being true. For biological subjects - e.g. human patients - this is usually called the "physiologically relevant time". This is usually either the time of the procedure or of specimen collection, but very often the source of the date/time is not known, only the date/time itself.
effectiveTimingTimingThe time or time-period the observed value is asserted as being true. For biological subjects - e.g. human patients - this is usually called the "physiologically relevant time". This is usually either the time of the procedure or of specimen collection, but very often the source of the date/time is not known, only the date/time itself.
effectiveInstantstringThe time or time-period the observed value is asserted as being true. For biological subjects - e.g. human patients - this is usually called the "physiologically relevant time". This is usually either the time of the procedure or of specimen collection, but very often the source of the date/time is not known, only the date/time itself.
issuedinstantThe date and time this version of the observation was made available to providers, typically after the results have been reviewed and verified.
performerarray(Reference)Who was responsible for asserting the observed value as "true".
valueQuantityQuantityThe information determined as a result of making the observation, if the information has a simple value.
valueCodeableConceptCodeableConceptThe information determined as a result of making the observation, if the information has a simple value.
valueStringstringThe information determined as a result of making the observation, if the information has a simple value.
valueBooleanbooleanThe information determined as a result of making the observation, if the information has a simple value.
valueIntegernumberThe information determined as a result of making the observation, if the information has a simple value.
valueRangeRangeThe information determined as a result of making the observation, if the information has a simple value.
valueRatioRatioThe information determined as a result of making the observation, if the information has a simple value.
valueSampledDataSampledDataThe information determined as a result of making the observation, if the information has a simple value.
valueTimestringThe information determined as a result of making the observation, if the information has a simple value.
valueDateTimestringThe information determined as a result of making the observation, if the information has a simple value.
valuePeriodPeriodThe information determined as a result of making the observation, if the information has a simple value.
dataAbsentReasonCodeableConceptProvides a reason why the expected value in the element Observation.value[x] is missing.
interpretationarray(CodeableConcept)A categorical assessment of an observation value. For example, high, low, normal.
notearray(Annotation)Comments about the observation or the results.
bodySiteCodeableConceptIndicates the site on the subject's body where the observation was made (i.e. the target site).
methodCodeableConceptIndicates the mechanism used to perform the observation.
specimenReferenceThe specimen that was used when this observation was made.
deviceReferenceThe device used to generate the observation data.
referenceRangearray(Observation_ReferenceRange)Guidance on how to interpret the value by comparison to a normal or recommended range. Multiple reference ranges are interpreted as an "OR". In other words, to represent two distinct target populations, two `referenceRange` elements would be used.
hasMemberarray(Reference)This observation is a group observation (e.g. a battery, a panel of tests, a set of vital sign measurements) that includes the target as a member of the group.
derivedFromarray(Reference)The target resource that represents a measurement from which this observation value is derived. For example, a calculated anion gap or a fetal measurement based on an ultrasound image.
componentarray(Observation_Component)Some observations have multiple component observations. These component observations are expressed as separate code value pairs that share the same attributes. Examples include systolic and diastolic component observations for blood pressure measurement and multiple component observations for genetics observations.

Response

Read Observation

get
/organizations/{organizationId}/fhir/4/Observation/{resourceId}

Request

Headers

content-type*stringapplication/json|application/json+fhirapplication/json
log-cdatastring
log-cdata-formatstringkv|jsonkv
AuthorizationstringBearer <token>

Params

organizationId*string|stringid|slug
resourceId*

Response

Read History Observation

get
/organizations/{organizationId}/fhir/4/Observation/{resourceId}/_history

Request

Headers

content-type*stringapplication/json|application/json+fhirapplication/json
log-cdatastring
log-cdata-formatstringkv|jsonkv
AuthorizationstringBearer <token>

Query params

_countstring
_sincestring

Params

organizationId*string|stringid|slug
resourceId*

Response

Read Version Observation

get
/organizations/{organizationId}/fhir/4/Observation/{resourceId}/_history/{versionId}

Request

Headers

content-type*stringapplication/json|application/json+fhirapplication/json
log-cdatastring
log-cdata-formatstringkv|jsonkv
AuthorizationstringBearer <token>

Params

organizationId*string|stringid|slug
resourceId*
versionId*

Response

Remove Observation

delete
/organizations/{organizationId}/fhir/4/Observation/{resourceId}

Request

Headers

content-type*stringapplication/json|application/json+fhirapplication/json
log-cdatastring
log-cdata-formatstringkv|jsonkv
AuthorizationstringBearer <token>

Params

organizationId*string|stringid|slug
resourceId*

Response

Search Get Observation

get
/organizations/{organizationId}/fhir/4/Observation

Request

Headers

content-type*stringapplication/json|application/json+fhirapplication/json
log-cdatastring
log-cdata-formatstringkv|jsonkv
AuthorizationstringBearer <token>

Query params

_idstring
_languagestring
based-onstring
categorystring
codestring
code-value-conceptstring
code-value-datestring
code-value-quantitystring
code-value-stringstring
combo-codestring
combo-code-value-conceptstring
combo-code-value-quantitystring
combo-data-absent-reasonstring
combo-value-conceptstring
combo-value-quantitystring
component-codestring
component-code-value-conceptstring
component-code-value-quantitystring
component-data-absent-reasonstring
component-value-conceptstring
component-value-quantitystring
data-absent-reasonstring
datestring
derived-fromstring
devicestring
encounterstring
focusstring
has-memberstring
identifierstring
methodstring
part-ofstring
patientstring
performerstring
specimenstring
statusstring
subjectstring
value-conceptstring
value-datestring
value-quantitystring
value-stringstring

Params

organizationId*string|stringid|slug

Response

Search History Observation

get
/organizations/{organizationId}/fhir/4/Observation/_history

Request

Headers

content-type*stringapplication/json|application/json+fhirapplication/json
log-cdatastring
log-cdata-formatstringkv|jsonkv
AuthorizationstringBearer <token>

Query params

_countstring
_sincestring

Params

organizationId*string|stringid|slug

Response

Search Post Observation

post
/organizations/{organizationId}/fhir/4/Observation/_search

Measurements and simple assertions made about a patient, device or other subject.

Request

Headers

content-type*stringapplication/json|application/x-www-form-urlencodedapplication/json
log-cdatastring
log-cdata-formatstringkv|jsonkv
AuthorizationstringBearer <token>

Query params

_idstring
_languagestring
based-onstring
categorystring
codestring
code-value-conceptstring
code-value-datestring
code-value-quantitystring
code-value-stringstring
combo-codestring
combo-code-value-conceptstring
combo-code-value-quantitystring
combo-data-absent-reasonstring
combo-value-conceptstring
combo-value-quantitystring
component-codestring
component-code-value-conceptstring
component-code-value-quantitystring
component-data-absent-reasonstring
component-value-conceptstring
component-value-quantitystring
data-absent-reasonstring
datestring
derived-fromstring
devicestring
encounterstring
focusstring
has-memberstring
identifierstring
methodstring
part-ofstring
patientstring
performerstring
specimenstring
statusstring
subjectstring
value-conceptstring
value-datestring
value-quantitystring
value-stringstring

Params

organizationId*string|stringid|slug

Body

resourceType*This is a Observation resource
ididThe logical id of the resource, as used in the URL for the resource. Once assigned, this value never changes.
metaMetaThe metadata about the resource. This is content that is maintained by the infrastructure. Changes to the content might not always be associated with version changes to the resource.
implicitRulesuriA reference to a set of rules that were followed when the resource was constructed, and which must be understood when processing the content. Often, this is a reference to an implementation guide that defines the special rules along with other profiles etc.
languagecodeThe base language in which the resource is written.
textNarrativeA human-readable narrative that contains a summary of the resource and can be used to represent the content of the resource to a human. The narrative need not encode all the structured data, but is required to contain sufficient detail to make it "clinically safe" for a human to just read the narrative. Resource definitions may define what content should be represented in the narrative to ensure clinical safety.
containedarray(ResourceList)These resources do not have an independent existence apart from the resource that contains them - they cannot be identified independently, and nor can they have their own independent transaction scope.
extensionarray(Extension)May be used to represent additional information that is not part of the basic definition of the resource. To make the use of extensions safe and manageable, there is a strict set of governance applied to the definition and use of extensions. Though any implementer can define an extension, there is a set of requirements that SHALL be met as part of the definition of the extension.
modifierExtensionarray(Extension)May be used to represent additional information that is not part of the basic definition of the resource and that modifies the understanding of the element that contains it and/or the understanding of the containing element's descendants. Usually modifier elements provide negation or qualification. To make the use of extensions safe and manageable, there is a strict set of governance applied to the definition and use of extensions. Though any implementer is allowed to define an extension, there is a set of requirements that SHALL be met as part of the definition of the extension. Applications processing a resource are required to check for modifier extensions. Modifier extensions SHALL NOT change the meaning of any elements on Resource or DomainResource (including cannot change the meaning of modifierExtension itself).
identifierarray(Identifier)A unique identifier assigned to this observation.
basedOnarray(Reference)A plan, proposal or order that is fulfilled in whole or in part by this event. For example, a MedicationRequest may require a patient to have laboratory test performed before it is dispensed.
partOfarray(Reference)A larger event of which this particular Observation is a component or step. For example, an observation as part of a procedure.
statusregistered|preliminary|final|amended|corrected|cancelled|entered-in-error|unknownThe status of the result value.
categoryarray(CodeableConcept)A code that classifies the general type of observation being made.
code*CodeableConceptDescribes what was observed. Sometimes this is called the observation "name".
subjectReferenceThe patient, or group of patients, location, or device this observation is about and into whose record the observation is placed. If the actual focus of the observation is different from the subject (or a sample of, part, or region of the subject), the `focus` element or the `code` itself specifies the actual focus of the observation.
focusarray(Reference)The actual focus of an observation when it is not the patient of record representing something or someone associated with the patient such as a spouse, parent, fetus, or donor. For example, fetus observations in a mother's record. The focus of an observation could also be an existing condition, an intervention, the subject's diet, another observation of the subject, or a body structure such as tumor or implanted device. An example use case would be using the Observation resource to capture whether the mother is trained to change her child's tracheostomy tube. In this example, the child is the patient of record and the mother is the focus.
encounterReferenceThe healthcare event (e.g. a patient and healthcare provider interaction) during which this observation is made.
effectiveDateTimestringThe time or time-period the observed value is asserted as being true. For biological subjects - e.g. human patients - this is usually called the "physiologically relevant time". This is usually either the time of the procedure or of specimen collection, but very often the source of the date/time is not known, only the date/time itself.
effectivePeriodPeriodThe time or time-period the observed value is asserted as being true. For biological subjects - e.g. human patients - this is usually called the "physiologically relevant time". This is usually either the time of the procedure or of specimen collection, but very often the source of the date/time is not known, only the date/time itself.
effectiveTimingTimingThe time or time-period the observed value is asserted as being true. For biological subjects - e.g. human patients - this is usually called the "physiologically relevant time". This is usually either the time of the procedure or of specimen collection, but very often the source of the date/time is not known, only the date/time itself.
effectiveInstantstringThe time or time-period the observed value is asserted as being true. For biological subjects - e.g. human patients - this is usually called the "physiologically relevant time". This is usually either the time of the procedure or of specimen collection, but very often the source of the date/time is not known, only the date/time itself.
issuedinstantThe date and time this version of the observation was made available to providers, typically after the results have been reviewed and verified.
performerarray(Reference)Who was responsible for asserting the observed value as "true".
valueQuantityQuantityThe information determined as a result of making the observation, if the information has a simple value.
valueCodeableConceptCodeableConceptThe information determined as a result of making the observation, if the information has a simple value.
valueStringstringThe information determined as a result of making the observation, if the information has a simple value.
valueBooleanbooleanThe information determined as a result of making the observation, if the information has a simple value.
valueIntegernumberThe information determined as a result of making the observation, if the information has a simple value.
valueRangeRangeThe information determined as a result of making the observation, if the information has a simple value.
valueRatioRatioThe information determined as a result of making the observation, if the information has a simple value.
valueSampledDataSampledDataThe information determined as a result of making the observation, if the information has a simple value.
valueTimestringThe information determined as a result of making the observation, if the information has a simple value.
valueDateTimestringThe information determined as a result of making the observation, if the information has a simple value.
valuePeriodPeriodThe information determined as a result of making the observation, if the information has a simple value.
dataAbsentReasonCodeableConceptProvides a reason why the expected value in the element Observation.value[x] is missing.
interpretationarray(CodeableConcept)A categorical assessment of an observation value. For example, high, low, normal.
notearray(Annotation)Comments about the observation or the results.
bodySiteCodeableConceptIndicates the site on the subject's body where the observation was made (i.e. the target site).
methodCodeableConceptIndicates the mechanism used to perform the observation.
specimenReferenceThe specimen that was used when this observation was made.
deviceReferenceThe device used to generate the observation data.
referenceRangearray(Observation_ReferenceRange)Guidance on how to interpret the value by comparison to a normal or recommended range. Multiple reference ranges are interpreted as an "OR". In other words, to represent two distinct target populations, two `referenceRange` elements would be used.
hasMemberarray(Reference)This observation is a group observation (e.g. a battery, a panel of tests, a set of vital sign measurements) that includes the target as a member of the group.
derivedFromarray(Reference)The target resource that represents a measurement from which this observation value is derived. For example, a calculated anion gap or a fetal measurement based on an ultrasound image.
componentarray(Observation_Component)Some observations have multiple component observations. These component observations are expressed as separate code value pairs that share the same attributes. Examples include systolic and diastolic component observations for blood pressure measurement and multiple component observations for genetics observations.

Response

Update Observation

put
/organizations/{organizationId}/fhir/4/Observation/{resourceId}

Measurements and simple assertions made about a patient, device or other subject.

Request

Headers

content-type*stringapplication/json|application/json+fhirapplication/json
log-cdatastring
log-cdata-formatstringkv|jsonkv
AuthorizationstringBearer <token>

Params

organizationId*string|stringid|slug
resourceId*

Body

resourceType*This is a Observation resource
ididThe logical id of the resource, as used in the URL for the resource. Once assigned, this value never changes.
metaMetaThe metadata about the resource. This is content that is maintained by the infrastructure. Changes to the content might not always be associated with version changes to the resource.
implicitRulesuriA reference to a set of rules that were followed when the resource was constructed, and which must be understood when processing the content. Often, this is a reference to an implementation guide that defines the special rules along with other profiles etc.
languagecodeThe base language in which the resource is written.
textNarrativeA human-readable narrative that contains a summary of the resource and can be used to represent the content of the resource to a human. The narrative need not encode all the structured data, but is required to contain sufficient detail to make it "clinically safe" for a human to just read the narrative. Resource definitions may define what content should be represented in the narrative to ensure clinical safety.
containedarray(ResourceList)These resources do not have an independent existence apart from the resource that contains them - they cannot be identified independently, and nor can they have their own independent transaction scope.
extensionarray(Extension)May be used to represent additional information that is not part of the basic definition of the resource. To make the use of extensions safe and manageable, there is a strict set of governance applied to the definition and use of extensions. Though any implementer can define an extension, there is a set of requirements that SHALL be met as part of the definition of the extension.
modifierExtensionarray(Extension)May be used to represent additional information that is not part of the basic definition of the resource and that modifies the understanding of the element that contains it and/or the understanding of the containing element's descendants. Usually modifier elements provide negation or qualification. To make the use of extensions safe and manageable, there is a strict set of governance applied to the definition and use of extensions. Though any implementer is allowed to define an extension, there is a set of requirements that SHALL be met as part of the definition of the extension. Applications processing a resource are required to check for modifier extensions. Modifier extensions SHALL NOT change the meaning of any elements on Resource or DomainResource (including cannot change the meaning of modifierExtension itself).
identifierarray(Identifier)A unique identifier assigned to this observation.
basedOnarray(Reference)A plan, proposal or order that is fulfilled in whole or in part by this event. For example, a MedicationRequest may require a patient to have laboratory test performed before it is dispensed.
partOfarray(Reference)A larger event of which this particular Observation is a component or step. For example, an observation as part of a procedure.
statusregistered|preliminary|final|amended|corrected|cancelled|entered-in-error|unknownThe status of the result value.
categoryarray(CodeableConcept)A code that classifies the general type of observation being made.
code*CodeableConceptDescribes what was observed. Sometimes this is called the observation "name".
subjectReferenceThe patient, or group of patients, location, or device this observation is about and into whose record the observation is placed. If the actual focus of the observation is different from the subject (or a sample of, part, or region of the subject), the `focus` element or the `code` itself specifies the actual focus of the observation.
focusarray(Reference)The actual focus of an observation when it is not the patient of record representing something or someone associated with the patient such as a spouse, parent, fetus, or donor. For example, fetus observations in a mother's record. The focus of an observation could also be an existing condition, an intervention, the subject's diet, another observation of the subject, or a body structure such as tumor or implanted device. An example use case would be using the Observation resource to capture whether the mother is trained to change her child's tracheostomy tube. In this example, the child is the patient of record and the mother is the focus.
encounterReferenceThe healthcare event (e.g. a patient and healthcare provider interaction) during which this observation is made.
effectiveDateTimestringThe time or time-period the observed value is asserted as being true. For biological subjects - e.g. human patients - this is usually called the "physiologically relevant time". This is usually either the time of the procedure or of specimen collection, but very often the source of the date/time is not known, only the date/time itself.
effectivePeriodPeriodThe time or time-period the observed value is asserted as being true. For biological subjects - e.g. human patients - this is usually called the "physiologically relevant time". This is usually either the time of the procedure or of specimen collection, but very often the source of the date/time is not known, only the date/time itself.
effectiveTimingTimingThe time or time-period the observed value is asserted as being true. For biological subjects - e.g. human patients - this is usually called the "physiologically relevant time". This is usually either the time of the procedure or of specimen collection, but very often the source of the date/time is not known, only the date/time itself.
effectiveInstantstringThe time or time-period the observed value is asserted as being true. For biological subjects - e.g. human patients - this is usually called the "physiologically relevant time". This is usually either the time of the procedure or of specimen collection, but very often the source of the date/time is not known, only the date/time itself.
issuedinstantThe date and time this version of the observation was made available to providers, typically after the results have been reviewed and verified.
performerarray(Reference)Who was responsible for asserting the observed value as "true".
valueQuantityQuantityThe information determined as a result of making the observation, if the information has a simple value.
valueCodeableConceptCodeableConceptThe information determined as a result of making the observation, if the information has a simple value.
valueStringstringThe information determined as a result of making the observation, if the information has a simple value.
valueBooleanbooleanThe information determined as a result of making the observation, if the information has a simple value.
valueIntegernumberThe information determined as a result of making the observation, if the information has a simple value.
valueRangeRangeThe information determined as a result of making the observation, if the information has a simple value.
valueRatioRatioThe information determined as a result of making the observation, if the information has a simple value.
valueSampledDataSampledDataThe information determined as a result of making the observation, if the information has a simple value.
valueTimestringThe information determined as a result of making the observation, if the information has a simple value.
valueDateTimestringThe information determined as a result of making the observation, if the information has a simple value.
valuePeriodPeriodThe information determined as a result of making the observation, if the information has a simple value.
dataAbsentReasonCodeableConceptProvides a reason why the expected value in the element Observation.value[x] is missing.
interpretationarray(CodeableConcept)A categorical assessment of an observation value. For example, high, low, normal.
notearray(Annotation)Comments about the observation or the results.
bodySiteCodeableConceptIndicates the site on the subject's body where the observation was made (i.e. the target site).
methodCodeableConceptIndicates the mechanism used to perform the observation.
specimenReferenceThe specimen that was used when this observation was made.
deviceReferenceThe device used to generate the observation data.
referenceRangearray(Observation_ReferenceRange)Guidance on how to interpret the value by comparison to a normal or recommended range. Multiple reference ranges are interpreted as an "OR". In other words, to represent two distinct target populations, two `referenceRange` elements would be used.
hasMemberarray(Reference)This observation is a group observation (e.g. a battery, a panel of tests, a set of vital sign measurements) that includes the target as a member of the group.
derivedFromarray(Reference)The target resource that represents a measurement from which this observation value is derived. For example, a calculated anion gap or a fetal measurement based on an ultrasound image.
componentarray(Observation_Component)Some observations have multiple component observations. These component observations are expressed as separate code value pairs that share the same attributes. Examples include systolic and diastolic component observations for blood pressure measurement and multiple component observations for genetics observations.

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