<status value="active" /> <date value="2026-03-23" /> <publisher value="Israel Core Team" /> <contact> <telecom> <system value="email" /> <value value="tal.primak@moh.gov.il" /> </telecom> </contact> <description value="Israel Core proposed constraints and extensions on the Observation Resource for use in querying and retrieving Vital Signs information." /> <fhirVersion value="4.0.1" /> <kind value="resource" /> <abstract value="false" /> <type value="Observation" /> <baseDefinition value="http://fhir.health.gov.il/StructureDefinition/il-core-observation" /> <derivation value="constraint" /> <differential> <element id="Observation"> <path value="Observation" /> <short value="ILCore Vital Signs Profile" /> <constraint> <key value="il-vs2" /> <severity value="error" /> <human value="If there is no component or hasMember element then either a value[x] or a data absent reason must be present." /> <expression value="(component.empty() and hasMember.empty()) implies (dataAbsentReason.exists() or value.exists())" /> <source value="http://fhir.health.gov.il/StructureDefinition/il-core-vital-signs" /> </constraint> </element> <element id="Observation.extension"> <path value="Observation.extension" /> <slicing> <discriminator> <type value="value" /> <path value="url" /> </discriminator> <ordered value="false" /> <rules value="open" /> </slicing> </element> <element id="Observation.extension:body-position"> <path value="Observation.extension" /> <sliceName value="body-position" /> <min value="0" /> <max value="1" /> <type> <code value="Extension" /> <profile value="http://hl7.org/fhir/StructureDefinition/observation-bodyPosition" /> </type> </element> <element id="Observation.extension:body-position.value[x]"> <path value="Observation.extension.value[x]" /> <binding> <strength value="example" /> <valueSet value="http://fhir.health.gov.il/ValueSet/il-core-body-position" /> </binding> </element> <element id="Observation.category"> <path value="Observation.category" /> <slicing> <discriminator> <type value="value" /> <path value="coding.code" /> </discriminator> <discriminator> <type value="value" /> <path value="coding.system" /> </discriminator> <ordered value="false" /> <rules value="open" /> </slicing> <min value="1" /> </element> <element id="Observation.category:VSCat"> <path value="Observation.category" /> <sliceName value="VSCat" /> <min value="1" /> <max value="1" /> </element> <element id="Observation.category:VSCat.coding"> <path value="Observation.category.coding" /> <min value="1" /> </element> <element id="Observation.category:VSCat.coding.system"> <path value="Observation.category.coding.system" /> <min value="1" /> <fixedUri value="http://terminology.hl7.org/CodeSystem/observation-category" /> <mustSupport value="true" /> </element> <element id="Observation.category:VSCat.coding.code"> <path value="Observation.category.coding.code" /> <min value="1" /> <fixedCode value="vital-signs" /> <mustSupport value="true" /> </element> <element id="Observation.code"> <path value="Observation.code" /> <definition value="Code specifying Vital Sign measurement type" /> <binding> <strength value="extensible" /> <valueSet value="http://hl7.org/fhir/ValueSet/observation-vitalsignresult" /> </binding> </element> <element id="Observation.subject"> <path value="Observation.subject" /> <min value="1" /> <type> <code value="Reference" /> <targetProfile value="http://fhir.health.gov.il/StructureDefinition/il-core-patient" /> </type> </element> <element id="Observation.effective[x]"> <path value="Observation.effective[x]" /> <short value="Often just a dateTime for Vital Signs" /> <min value="1" /> <constraint> <key value="il-vs1" /> <severity value="error" /> <human value="if Observation.effective[x] is dateTime and has a value then that value shall be precise to the day" /> <expression value="($this as dateTime).exists() implies (($this as dateTime).toString().length() >= 10)" /> <source value="http://fhir.health.gov.il/StructureDefinition/il-core-vital-signs" /> </constraint> </element> <element id="Observation.value[x]"> <path value="Observation.value[x]" /> <short value="Vital Signs value are recorded using the Quantity data type." /> <definition value="Vital Signs value are recorded using the Quantity data type. For supporting observations such as Cuff size could use other datatypes such as CodeableConcept, as well as String." /> <type> <code value="Quantity" /> </type> <type> <code value="CodeableConcept" /> </type> <type> <code value="string" /> </type> </element> <element id="Observation.value[x]:valueQuantity"> <path value="Observation.value[x]" /> <sliceName value="valueQuantity" /> <short value="Vital Signs values are recorded with UCUM" /> <definition value="Vital Signs values are recorded with UCUM" /> <type> <code value="Quantity" /> </type> <binding> <strength value="required" /> <valueSet value="http://hl7.org/fhir/ValueSet/ucum-vitals-common" /> </binding> </element> <element id="Observation.dataAbsentReason"> <path value="Observation.dataAbsentReason" /> <mustSupport value="true" /> </element> <element id="Observation.hasMember"> <path value="Observation.hasMember" /> <definition value="Used when reporting vital signs panel components" /> <type> <code value="Reference" /> <targetProfile value="http://fhir.health.gov.il/StructureDefinition/il-core-vital-signs" /> </type> </element> <element id="Observation.derivedFrom"> <path value="Observation.derivedFrom" /> <type> <code value="Reference" /> <targetProfile value="http://fhir.health.gov.il/StructureDefinition/il-core-document-reference" /> <targetProfile value="http://fhir.health.gov.il/StructureDefinition/il-core-imaging-study" /> <targetProfile value="http://fhir.health.gov.il/StructureDefinition/il-core-media" /> <targetProfile value="http://fhir.health.gov.il/StructureDefinition/il-core-questionnaire-response" /> <targetProfile value="http://fhir.health.gov.il/StructureDefinition/il-core-vital-signs" /> <targetProfile value="http://fhir.health.gov.il/StructureDefinition/il-core-molecular-sequence" /> </type> </element> <element id="Observation.component"> <path value="Observation.component" /> <constraint> <key value="il-vs3" /> <severity value="error" /> <human value="If there is no a value a data absent reason must be present" /> <expression value="value.exists() or dataAbsentReason.exists()" /> <source value="http://fhir.health.gov.il/StructureDefinition/il-core-vital-signs" /> </constraint> <mustSupport value="true" /> </element> <element id="Observation.component.code"> <path value="Observation.component.code" /> <mustSupport value="true" /> </element> <element id="Observation.component.value[x]"> <path value="Observation.component.value[x]" /> <type> <code value="Quantity" /> </type> <type> <code value="CodeableConcept" /> </type> <type> <code value="string" /> </type> <condition value="il-vs3" /> </element> <element id="Observation.component.value[x]:valueQuantity"> <path value="Observation.component.value[x]" /> <sliceName value="valueQuantity" /> <short value="BP values are recorded with UCUM" /> <definition value="Blood pressuer values are recorded with UCUM" /> <type> <code value="Quantity" /> </type> <binding> <strength value="extensible" /> <valueSet value="http://fhir.health.gov.il/ValueSet/bp-unit" /> </binding> </element> <element id="Observation.component.dataAbsentReason"> <path value="Observation.component.dataAbsentReason" /> <condition value="il-vs3" /> <mustSupport value="true" /> </element> </differential> </StructureDefinition>