Trying to add EEG Observation

[Pedro Diaz]

Hello Team,

I wanted to preface this conversation to mention that I am very new to FHIR and Cerner. I am trying to create an Observation resource in the sandbox environment with an observation code of EEG (11523-8). From examples I have seen in FHIR, the values are sent as valueSampleData which, unfortunately, Cerner doesn't support. I've tried submitting an Observation with a valueString, a valueQuantity, and a valueDateTime and I always get back a response with "Unprocessable entity". What is the best way to have an Observation created from an EEG? Here is the sample JSON I am sending (the patient id is a random patient I chose from the sandbox):

{

    "resourceType": "Observation",

    "subject": {

        "reference": "Patient/12554001"

    },

    "category": [

        {

        "coding": [

            {

            "system": "http://terminology.hl7.org/CodeSystem/observation-category",

            "code": "laboratory",

            "display": "Laboratory"

            }

        ],

        "text": "Laboratory"

        }

    ],

    "code": {

        "coding": [

            {

                "system": "http://loinc.org",

                "code": "11523-8"

            }

        ],

        "text": "Electroencephalography study report"

    },

    "valueString": "This is a sample Electroencephalography study report",

    "effectiveDateTime": "2021-05-03T19:21:00.000Z",

    "status": "final"

}

Any help would be greatly appreciated. 

[Fenil Desani (Cerner)]

Hello,

Please provide X-Request-id of the failure.

Thanks,

Fenil (Cerner)

[Pedro Diaz]

Hello Feni,

Thanks for getting back to me so quickly. Here is the X-Request_id: 

c1063f8e-f0e2-42fe-84fe-74e2833653bb

Let me know if you need anything else. 

Thanks,

Pedro

[Pedro Diaz]

Hello Fenil, 

Out ultimate goal is to attach a document reference to an observation. I saw in the FHR documentation that this is done through the "derivedFrom" field, however, I don't see that field in the Observation documentation. Is that still valid? If not, how can we attach a DocumentReference to an Observation? 

Thanks again for all your help. 

[Fenil Desani (Cerner)]

The failure is because of missing mappings. I don't think we have functionality to add document to an Observation. Did you read that on fhir.cerner.com ?