{
  "resourceType": "Observation",
  "status": "final",
  "category": [
    {
      "coding": [
        {
          "system": "http://terminology.hl7.org/CodeSystem/observation-category",
          "code": "activity"
        }
      ]
    }
  ],
  "code": {
    "coding": [
      {
        "system": "https://mypraxisos.com/ontology/v1",
        "code": "gait.step_time_cv",
        "display": "Step-time variability"
      }
    ]
  },
  "subject": {
    "reference": "Patient/pseudonymous-key"
  },
  "effectivePeriod": {
    "start": "2026-10-15T15:00:00Z",
    "end": "2026-10-15T15:00:10Z"
  },
  "valueQuantity": {
    "value": 3.4,
    "unit": "%",
    "system": "http://unitsofmeasure.org",
    "code": "%"
  },
  "component": [
    {
      "code": {
        "coding": [
          {
            "system": "https://mypraxisos.com/ontology/v1",
            "code": "meta.quality"
          }
        ]
      },
      "valueQuantity": {
        "value": 0.92,
        "unit": "1",
        "system": "http://unitsofmeasure.org",
        "code": "1"
      }
    },
    {
      "code": {
        "coding": [
          {
            "system": "https://mypraxisos.com/ontology/v1",
            "code": "context.env_load"
          }
        ]
      },
      "valueString": "moderate"
    },
    {
      "code": {
        "coding": [
          {
            "system": "https://mypraxisos.com/ontology/v1",
            "code": "meta.layout"
          }
        ]
      },
      "valueString": "reference"
    }
  ],
  "device": {
    "display": "PRAXIS Sense (on-device extraction); raw signals not transmitted"
  }
}