{ "resourceType": "StructureDefinition", "id": "Observation", "meta": { "lastUpdated": "2026-03-04T19:18:59.7604984+00:00" }, "text": { "status": "extensions", "div": "
\r\n\r\n\r\n\r\n\r\n\r\n\r\n\r\n\r\n\r\n\r\n\r\n
NameFlagsCard.TypeDescription & Constraints\"doco\"
\".\"\".\" Observation 0..*ObservationThis is an abstract profile
SDOH assessment observation
\".\"\".\"\".\" status S1..1coderegistered | preliminary | final | amended +
\".\"\".\"\".\" Slices for category 1..*CodeableConceptClassification of type of observation
Slice: Unordered, Open by value:$this
\".\"\".\"\".\"\".\" category:SocialHistory S1..1CodeableConceptClassification of type of observation
Required Pattern: At least the following
\".\"\".\"\".\"\".\"\".\" coding1..*CodingCode defined by a terminology system
Fixed Value: (complex)
\".\"\".\"\".\"\".\"\".\"\".\" system1..1uriIdentity of the terminology system
Fixed Value: http://terminology.hl7.org/CodeSystem/observation-category
\".\"\".\"\".\"\".\"\".\"\".\" code1..1codeSymbol in syntax defined by the system
Fixed Value: social-history
\".\"\".\"\".\"\".\" category:SDOHDomain S0..*CodeableConcepte.g., food-insecurity | transportation-insecurity
Binding: SDOHCC ValueSet SDOH Category (required): Codes for high-level SDOH categories.

\".\"\".\"\".\" code S1..1CodeableConceptType of observation (code / type)
Binding: SDOHCC ValueSet LOINC SNOMEDCT (preferred)
\".\"\".\"\".\" subject S1..1Reference(Group | US Core Patient Profile)Who and/or what the observation is about
\".\"\".\"\".\" performer S0..*Reference(RelatedPerson | US Core Patient Profile | US Core Practitioner Profile | US Core PractitionerRole Profile | US Core Organization Profile | US Core CareTeam Profile)Who is responsible for the observation
\".\"\".\"\".\" value[x] S0..1Quantity, CodeableConcept, string, boolean, integer, Range, Ratio, SampledData, time, dateTime, PeriodActual result

\"doco\" Documentation for this format
" }, "url": "http://ontariohealth.ca/fhir/StructureDefinition/ca-on-profile-observation-housing-status", "version": "2.0.0", "name": "ObservationHousingStatus", "title": "MHA Observation-HousingStatus Profile", "status": "active", "date": "2022-08-22T20:17:06.3613088+00:00", "publisher": "Ontario Health", "description": "This profile constrains the Observation resource for use related to Social Determinants of Health observations that involve assessments conducted along the client journey.", "jurisdiction": [ { "coding": [ { "system": "urn:iso:std:iso:3166", "code": "US" } ] } ], "purpose": "This resource will capture information pertaining to the client's housing status.", "fhirVersion": "4.0.1", "mapping": [ { "identity": "workflow", "uri": "http://hl7.org/fhir/workflow", "name": "Workflow Pattern" }, { "identity": "sct-concept", "uri": "http://snomed.info/conceptdomain", "name": "SNOMED CT Concept Domain Binding" }, { "identity": "v2", "uri": "http://hl7.org/v2", "name": "HL7 v2 Mapping" }, { "identity": "rim", "uri": "http://hl7.org/v3", "name": "RIM Mapping" }, { "identity": "w5", "uri": "http://hl7.org/fhir/fivews", "name": "FiveWs Pattern Mapping" }, { "identity": "sct-attr", "uri": "http://snomed.org/attributebinding", "name": "SNOMED CT Attribute Binding" }, { "identity": "MHA-PDS-Mapping", "name": "MHA PDS Mapping" } ], "kind": "resource", "abstract": false, "type": "Observation", "baseDefinition": "http://hl7.org/fhir/StructureDefinition/Observation", "derivation": "constraint", "differential": { "element": [ { "id": "Observation", "path": "Observation", "short": "SDOH assessment observation", "definition": "For SDOH observations derived from assessment of the client.", "comment": "For representation of SDOH observations that involve assessments conducted along the client journey.", "mustSupport": true }, { "id": "Observation.meta", "path": "Observation.meta", "min": 1, "mustSupport": true }, { "id": "Observation.meta.profile", "path": "Observation.meta.profile", "min": 1, "max": "1", "fixedCanonical": "http://ontariohealth.ca/fhir/StructureDefinition/ca-on-profile-observation-housing-status", "mustSupport": true }, { "id": "Observation.status", "path": "Observation.status", "mustSupport": true }, { "id": "Observation.category", "path": "Observation.category", "min": 1, "max": "1", "mustSupport": true, "binding": { "strength": "required" } }, { "id": "Observation.category.coding", "path": "Observation.category.coding", "min": 1, "max": "1", "mustSupport": true }, { "id": "Observation.category.coding.system", "path": "Observation.category.coding.system", "min": 1, "fixedUri": "http://terminology.hl7.org/CodeSystem/observation-category", "mustSupport": true }, { "id": "Observation.category.coding.code", "path": "Observation.category.coding.code", "min": 1, "fixedCode": "social-history", "mustSupport": true }, { "id": "Observation.category.coding.display", "path": "Observation.category.coding.display", "min": 1, "fixedString": "Social History", "mustSupport": true }, { "id": "Observation.code", "path": "Observation.code", "mustSupport": true, "binding": { "strength": "required", "valueSet": "http://ontariohealth.ca/fhir/ValueSet/sdohObservationCode" } }, { "id": "Observation.code.coding", "path": "Observation.code.coding", "min": 1, "max": "1", "mustSupport": true }, { "id": "Observation.code.coding.system", "path": "Observation.code.coding.system", "min": 1, "fixedUri": "http://loinc.org", "mustSupport": true }, { "id": "Observation.code.coding.code", "path": "Observation.code.coding.code", "min": 1, "fixedCode": "71802-3", "mustSupport": true }, { "id": "Observation.code.coding.display", "path": "Observation.code.coding.display", "min": 1, "fixedString": "Housing Status", "mustSupport": true }, { "id": "Observation.subject", "path": "Observation.subject", "min": 1, "type": [ { "code": "Reference", "targetProfile": [ "http://ontariohealth.ca/fhir/StructureDefinition/ca-on-mha-profile-patient" ] } ], "mustSupport": true }, { "id": "Observation.subject.reference", "path": "Observation.subject.reference", "min": 1, "mustSupport": true }, { "id": "Observation.effective[x]", "path": "Observation.effective[x]", "min": 1, "type": [ { "code": "dateTime" } ], "constraint": [ { "key": "sdoh-housing-status-inv-1", "severity": "error", "human": "Effective Date must be a full date (YYYY-MM-DD)", "expression": "$this.toString().matches('^[0-9]{4}-(0[1-9]|1[0-2])-(0[1-9]|[12][0-9]|3[01])$')" } ], "mustSupport": true }, { "id": "Observation.value[x]", "path": "Observation.value[x]", "type": [ { "code": "CodeableConcept" } ], "mustSupport": true }, { "id": "Observation.value[x].coding", "path": "Observation.value[x].coding", "max": "1", "mustSupport": true, "binding": { "strength": "required", "description": "The type of residential setting and arrangement where the client normally lives", "valueSet": "http://ontariohealth.ca/fhir/ValueSet/housing-status|2.0.0" } }, { "id": "Observation.value[x].coding.system", "path": "Observation.value[x].coding.system", "min": 1, "mustSupport": true }, { "id": "Observation.value[x].coding.code", "path": "Observation.value[x].coding.code", "min": 1, "mustSupport": true }, { "id": "Observation.value[x].coding.display", "path": "Observation.value[x].coding.display", "min": 1, "mustSupport": true }, { "id": "Observation.value[x].text", "path": "Observation.value[x].text", "mustSupport": true }, { "id": "Observation.dataAbsentReason", "path": "Observation.dataAbsentReason", "mustSupport": true, "binding": { "strength": "required", "valueSet": "http://ontariohealth.ca/fhir/ValueSet/mha-sdoh-data-absent-reason" } }, { "id": "Observation.dataAbsentReason.coding", "path": "Observation.dataAbsentReason.coding", "min": 1, "max": "1", "mustSupport": true }, { "id": "Observation.dataAbsentReason.coding.system", "path": "Observation.dataAbsentReason.coding.system", "min": 1, "mustSupport": true }, { "id": "Observation.dataAbsentReason.coding.code", "path": "Observation.dataAbsentReason.coding.code", "min": 1, "mustSupport": true }, { "id": "Observation.dataAbsentReason.coding.display", "path": "Observation.dataAbsentReason.coding.display", "min": 1, "mustSupport": true } ] } }