{
  "resourceType": "DeviceAlert",
  "id": "example",
  "identifier": [
    {
      "use": "official",
      "type": {
        "text": "Alarm Unique Id"
      },
      "value": "0600dcFFFF750001^^^EUI-64_d1130a75-316c-4401-88c4-9c71704cdf6b_d629bc41-0310-4fec-b1a4-41356b66a7eb"
    }
  ],
  "status": "in-progress",
  "priority": {
    "coding": [
      {
        "system": "http://hl7.org/fhir/devicealert-priority",
        "code": "medium",
        "display": "Medium Priority"
      }
    ]
  },
  "code": {
    "coding": [
      {
        "system": "urn:iso:std:iso:11073:10101",
        "code": "196670",
        "display": "MDC_EVT_LO"
      }
    ]
  },
  "subject": {
    "reference": "Patient/pat1"
  },
  "presence": true,
  "occurrencePeriod": {
    "start": "2025-10-30T10:00:00Z"
  },
  "device": {
    "reference": "Device/example"
  },
  "derivedFrom": [
    {
      "observation": {
        "reference": "Observation/f001",
        "type": "Observation"
      },
      "limit": {
        "low": {
          "value": 87,
          "unit": "MDC_DIM_PERCENT",
          "system": "urn:iso:std:iso:11073:10101",
          "code": "262688"
        },
        "high": {
          "value": 98,
          "unit": "MDC_DIM_PERCENT",
          "system": "urn:iso:std:iso:11073:10101",
          "code": "262688"
        }
      }
    }
  ],
  "acknowledged": false,
  "label": "**SpO2   86  \u003c87  ",
  "signal": [
    {
      "activationState": {
        "coding": [
          {
            "system": "http://hl7.org/fhir/devicealert-activationState",
            "code": "on",
            "display": "On"
          }
        ]
      },
      "presence": {
        "coding": [
          {
            "system": "http://hl7.org/fhir/devicealert-presence",
            "code": "on",
            "display": "On"
          }
        ]
      },
      "indication": {
        "start": "2025-10-30T10:00:00Z"
      },
      "type": [
        {
          "coding": [
            {
              "system": "urn:iso:std:iso:11073:10101",
              "code": "188420",
              "display": "MDC_TEMP_RECT"
            }
          ],
          "text": "Light annunciator"
        }
      ],
      "annunciator": {
        "concept": {
          "coding": [
            {
              "system": "urn:iso:std:iso:11073:10101",
              "code": "188420",
              "display": "MDC_TEMP_RECT"
            }
          ],
          "text": "Light annunciator"
        }
      },
      "manifestation": {
        "coding": [
          {
            "system": "http://hl7.org/fhir/devicealert-manifestation",
            "code": "visual",
            "display": "Visual"
          }
        ],
        "text": "visual alert"
      }
    }
  ],
  "meta": {
    "tag": [
      {
        "system": "http://terminology.hl7.org/CodeSystem/v3-ActReason",
        "code": "HTEST",
        "display": "test health data"
      }
    ]
  }
}