Blood Pressure Monitor Association During In-Patient Stay

{
  "resourceType" : "DeviceAssociation",
  "id" : "bp-monitor-association",
  "contained" : [{
    "resourceType" : "Patient",
    "id" : "example-patient",
    "name" : [{
      "family" : "Doe",
      "given" : ["John"]
    }]
  },
  {
    "resourceType" : "Practitioner",
    "id" : "nurse-1",
    "name" : [{
      "family" : "Smith",
      "given" : ["Nora"]
    }]
  },
  {
    "resourceType" : "Practitioner",
    "id" : "nurse-2",
    "name" : [{
      "family" : "Lee",
      "given" : ["Samuel"]
    }]
  },
  {
    "resourceType" : "Device",
    "id" : "bp-monitor",
    "status" : "active",
    "name" : [{
      "value" : "Omron HBP-1320",
      "type" : {
        "coding" : [{
          "code" : "model-name"
        }]
      }
    }],
    "type" : [{
      "coding" : [{
        "system" : "http://snomed.info/sct",
        "code" : "258057004",
        "display" : "Non-invasive blood pressure monitor"
      }]
    }]
  },
  {
    "resourceType" : "BodyStructure",
    "id" : "left-arm-structure",
    "includedStructure" : [{
      "structure" : {
        "coding" : [{
          "system" : "http://snomed.info/sct",
          "code" : "368208006",
          "display" : "Left upper arm structure"
        }]
      }
    }],
    "description" : "Cuff placement site for BP measurement",
    "patient" : {
      "reference" : "#example-patient"
    }
  }],
  "device" : {
    "reference" : "#bp-monitor"
  },
  "status" : {
    "coding" : [{
      "system" : "http://hl7.org/fhir/deviceassociation-status",
      "code" : "attached"
    }]
  },
  "subject" : {
    "reference" : "#example-patient"
  },
  "bodyStructure" : {
    "reference" : "#left-arm-structure"
  },
  "period" : {
    "start" : "2025-06-01",
    "end" : "2025-06-05"
  },
  "operation" : [{
    "status" : {
      "coding" : [{
        "code" : "on"
      }]
    },
    "operator" : [{
      "reference" : "#nurse-1"
    },
    {
      "reference" : "#nurse-2"
    }],
    "period" : {
      "start" : "2025-06-01",
      "end" : "2025-06-05"
    }
  }]
}