FHIR IG analytics

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Source1

{
  "resourceType": "StructureDefinition",
  "id": "SmartAL-Observation-GaitGroup",
  "url": "http://alticelabs.com/fhir/StructureDefinition/SmartAL-Observation-GaitGroup",
  "name": "SmartALObservationGaitGroup",
  "title": "SmartAL Observation — Gait Group",
  "status": "active",
  "description": "Gait group panel observation (custom LOINC 10000-F). This is a panel with\nno top-level value. Individual gait metrics are expressed as component\nentries using custom LOINC codes from http://alticelabs.com/fhir/loinc-custom.\n\nComponents MAY include interpretation and referenceRange when a matching\nObservationDefinition exists. Not all components will have UCUM units\n(e.g., Analysed Steps uses a unitless integer).\n\nKnown gait metric codes: 10001-F through 10012-F (see SmartAL Custom LOINC\nCodeSystem for the full list).",
  "fhirVersion": "4.0.1",
  "kind": "resource",
  "abstract": false,
  "type": "Observation",
  "baseDefinition": "http://alticelabs.com/fhir/StructureDefinition/SmartAL-Observation-Base",
  "derivation": "constraint",
  "differential": {
    "element": [
      {
        "id": "Observation.code.coding",
        "path": "Observation.code.coding",
        "slicing": {
          "discriminator": [
            {
              "type": "value",
              "path": "code"
            }
          ],
          "rules": "open"
        }
      },
      {
        "id": "Observation.code.coding:customLoinc",
        "path": "Observation.code.coding",
        "sliceName": "customLoinc",
        "min": 1,
        "max": "1"
      },
      {
        "id": "Observation.code.coding:customLoinc.system",
        "path": "Observation.code.coding.system",
        "fixedUri": "http://alticelabs.com/fhir/loinc-custom"
      },
      {
        "id": "Observation.code.coding:customLoinc.code",
        "path": "Observation.code.coding.code",
        "min": 1,
        "fixedCode": "10000-F"
      },
      {
        "id": "Observation.code.coding:customLoinc.display",
        "path": "Observation.code.coding.display",
        "fixedString": "Gait Group"
      },
      {
        "id": "Observation.value[x]",
        "path": "Observation.value[x]",
        "max": "0"
      },
      {
        "id": "Observation.component",
        "path": "Observation.component",
        "slicing": {
          "discriminator": [
            {
              "type": "value",
              "path": "code.coding.system"
            }
          ],
          "rules": "open",
          "ordered": false
        },
        "short": "Individual gait metrics",
        "definition": "Each component represents a gait metric with a code from the SmartAL custom\nLOINC system. Components MAY include interpretation and referenceRange when\nenriched by MHR from ObservationDefinition thresholds.",
        "min": 1
      },
      {
        "id": "Observation.component:gaitMetric",
        "path": "Observation.component",
        "sliceName": "gaitMetric",
        "min": 1,
        "max": "*",
        "mustSupport": true
      },
      {
        "id": "Observation.component:gaitMetric.code.coding",
        "path": "Observation.component.code.coding",
        "min": 1
      },
      {
        "id": "Observation.component:gaitMetric.code.coding.system",
        "path": "Observation.component.code.coding.system",
        "min": 1,
        "fixedUri": "http://alticelabs.com/fhir/loinc-custom"
      },
      {
        "id": "Observation.component:gaitMetric.code.coding.code",
        "path": "Observation.component.code.coding.code",
        "min": 1
      },
      {
        "id": "Observation.component:gaitMetric.code.coding.display",
        "path": "Observation.component.code.coding.display",
        "min": 1
      },
      {
        "id": "Observation.component:gaitMetric.value[x]",
        "path": "Observation.component.value[x]",
        "min": 1,
        "type": [
          {
            "code": "Quantity"
          }
        ]
      },
      {
        "id": "Observation.component:gaitMetric.value[x].value",
        "path": "Observation.component.value[x].value",
        "min": 1
      },
      {
        "id": "Observation.component:gaitMetric.value[x].unit",
        "path": "Observation.component.value[x].unit",
        "min": 1
      },
      {
        "id": "Observation.component:gaitMetric.interpretation",
        "path": "Observation.component.interpretation",
        "short": "MHR-enriched interpretation (N, L, LL, H, HH)"
      },
      {
        "id": "Observation.component:gaitMetric.referenceRange",
        "path": "Observation.component.referenceRange",
        "short": "MHR-enriched reference ranges for this metric"
      }
    ]
  }
}