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Creating Observations

To create Observation resources, you can either send a POST request to the /fhir/R4/Observation endpoint or submit a Bundle to the base /fhir/R4 endpoint.

Creating a single Observation via POST​

curl --request POST \
  --url ${BASE_URL}/fhir/R4/Observation \
  --header 'Authorization: Bearer ${access_token}' \
  --header 'Content-Type: application/json' \
  --data '{
  "resourceType": "Observation",
  "status": "final",
  "subject": {
    "type": "Patient",
    "identifier": {
      "system": "http://example.org/patient-ids",
      "value": "123456",
      "type": {
        "coding": [
          {
            "system": "http://terminology.hl7.org/CodeSystem/v2-0203",
            "code": "MR"
          }
        ]
      }
    }
  },
  "partOf": [
    {
      "type": "ImagingStudy",
      "identifier": {
        "system": "http://example.org/filler-order-number",
        "value": "1234",
        "type": {
          "coding": [
            {
              "system": "http://terminology.hl7.org/CodeSystem/v2-0203",
              "code": "ACSN"
            }
          ]
        }
      }
    }
  ],
  "code": {
    "coding": [
      {
        "system": "http://loinc.org",
        "code": "10231-9",
        "display": "Right ventricular Ejection fraction"
      }
    ]
  },
  "valueQuantity": {
    "value": 29,
    "unit": "%",
    "system": "http://unitsofmeasure.org",
    "code": "%"
  },
  "text": {
    "status": "generated",
    "div": "<div xmlns=\"http://www.w3.org/1999/xhtml\">Right ventricular Ejection fraction: 29%</div>"
  }
}'

Batch POST using a Bundle​

curl --request POST \
  --url ${BASE_URL}/fhir/R4 \
  --header 'Authorization: Bearer ${access_token}' \
  --header 'Content-Type: application/json' \
  --data '{
  "resourceType": "Bundle",
  "type": "batch",
  "entry": [
    {
      "resource": {
        "resourceType": "Observation",
        "status": "final",
        "subject": {
          "type": "Patient",
          "identifier": {
            "system": "http://example.org/patient-ids",
            "value": "123456",
            "type": {
              "coding": [
                {
                  "system": "http://terminology.hl7.org/CodeSystem/v2-0203",
                  "code": "MR"
                }
              ]
            }
          }
        },
        "partOf": [
          {
            "type": "ImagingStudy",
            "identifier": {
              "system": "http://example.org/filler-order-number",
              "value": "1234",
              "type": {
                "coding": [
                  {
                    "system": "http://terminology.hl7.org/CodeSystem/v2-0203",
                    "code": "ACSN"
                  }
                ]
              }
            }
          }
        ],
        "code": {
          "coding": [
            {
              "system": "http://loinc.org",
              "code": "10231-9",
              "display": "Right ventricular Ejection fraction"
            }
          ]
        },
        "valueQuantity": {
          "value": 29,
          "unit": "%",
          "system": "http://unitsofmeasure.org",
          "code": "%"
        }
      },
      "request": {
        "method": "POST",
        "url": "Observation"
      }
    },
    {
      "resource": {
        "resourceType": "Observation",
        "status": "final",
        "subject": {
          "type": "Patient",
          "identifier": {
            "system": "http://example.org/patient-ids",
            "value": "123456",
            "type": {
              "coding": [
                {
                  "system": "http://terminology.hl7.org/CodeSystem/v2-0203",
                  "code": "MR"
                }
              ]
            }
          }
        },
        "partOf": [
          {
            "type": "ImagingStudy",
            "identifier": {
              "system": "http://example.org/filler-order-number",
              "value": "1234",
              "type": {
                "coding": [
                  {
                    "system": "http://terminology.hl7.org/CodeSystem/v2-0203",
                    "code": "ACSN"
                  }
                ]
              }
            }
          }
        ],
        "code": {
          "coding": [
            {
              "system": "http://loinc.org",
              "code": "10230-1",
              "display": "Left ventricular Ejection fraction"
            }
          ]
        },
        "valueQuantity": {
          "value": 35,
          "unit": "%",
          "system": "http://unitsofmeasure.org",
          "code": "%"
        }
      },
      "request": {
        "method": "POST",
        "url": "Observation"
      }
    }
  ]
}'