{
  "description": "Records head circumference observations in the Irish healthcare context.",
  "_filename": "StructureDefinition-ie-core-head-circumference.json",
  "package_name": "nostalgic-ie.fhir.core",
  "date": null,
  "derivation": "constraint",
  "publisher": null,
  "fhirVersion": "4.0.1",
  "name": "IECoreHeadCircumference",
  "abstract": false,
  "type": "Observation",
  "experimental": null,
  "resourceType": "StructureDefinition",
  "title": "IE Core Head Circumference",
  "package_version": "0.2.0",
  "status": "draft",
  "id": "fe125f84-6930-46c2-8bd9-9bb6a56f7cdc",
  "kind": "resource",
  "url": "https://hl7-ie.github.io/ie-core/fhir/ie/core/StructureDefinition/ie-core-head-circumference",
  "version": "0.2.0",
  "differential": {
    "element": [ {
      "id": "Observation.code",
      "path": "Observation.code",
      "patternCodeableConcept": {
        "coding": [ {
          "code": "9843-4",
          "system": "http://loinc.org",
          "display": "Head Occipital-frontal circumference"
        } ]
      }
    }, {
      "id": "Observation.value[x]",
      "path": "Observation.value[x]",
      "type": [ {
        "code": "Quantity"
      } ]
    }, {
      "id": "Observation.value[x].value",
      "min": 1,
      "path": "Observation.value[x].value",
      "mustSupport": true
    }, {
      "id": "Observation.value[x].unit",
      "min": 1,
      "path": "Observation.value[x].unit",
      "mustSupport": true
    }, {
      "id": "Observation.value[x].system",
      "min": 1,
      "path": "Observation.value[x].system",
      "patternUri": "http://unitsofmeasure.org"
    }, {
      "id": "Observation.value[x].code",
      "min": 1,
      "path": "Observation.value[x].code"
    } ]
  },
  "baseDefinition": "https://hl7-ie.github.io/ie-core/fhir/ie/core/StructureDefinition/ie-core-vital-signs"
}