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422 Error while trying to create DiagnosticReport

Pappu kumarSep 29 2025

Workflow or API calls:

Reminder: If this is referring to a client domain or EHR activity—not the public sandbox—do not include API request data or live patient data.

Background Information:

I recently attempted to create a DiagnosticReport resource using the R4 FHIR-open API in the public sandbox, including all required fields as specified in the documentation. However, I received a 422 error. I have double-checked all the fields and verified that each related field exists and is valid. Could you please help me identify the correct request body for creating this resource, in case I am missing any necessary fields? I have tried with multiple payload

Payload-1(Outcome-422 Unprocessable entity)
{

"resourceType": "DiagnosticReport",

"status": "amended",

"identifier": [

{

  "use": "usual",

  "type": {

    "coding": \[

      {

        "code": "Coding",

        "system": "http://snomed.info/sct",

        "version": "4.0.1",

        "display": "test",

        "userSelected": true

      }

    \]

  },

  "system": "http://hl7.org/fhir/sid/us-ssn",

  "value": "11182457"

}

],

"category": [

{

  "coding": \[

    {

      "code": "LP29708-2",

      "display": "Cardiology",

      "isUserSelected": false,

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

    }

  \],

  "text": "string"

}

],

"code": {

"coding": \[

  {

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

    "code": "8328-7"

  }

\],

"text": "string"

},

"subject": {

"reference": "Patient/12804513"

},

"encounter": {

"reference": "Encounter/98041577"

},

"performer": [

{

  "reference": "Practitioner/11786042",

  "display": "Practitioner name string"

}

],

"resultsInterpreter": [

{

  "reference": "Practitioner/11786042",

  "display": "Practitioner name string"

}

],

"effectivePeriod": {

"start": "2020-09-14T09:05:12.000Z",

"end": "2020-09-14T09:05:12.000Z"

},

"issued": "2020-12-29T09:12:28Z",

"presentedForm": [

{

  "contentType": "application/pdf;charset=utf-8",

  "url": "http://snomed.info/sct",

  "data": "JVBERi0xLjQKJcfsj6IKNSAwIG9iago8PC9MZW5ndGggNiAwIF",

  "title": "CT image",

  "creation": "2020-12-29T09:12:28Z"

}

],

"conclusion": "conclusion string"

}

Payload-2 (Outcome -bad request)
{

"resourceType": "DiagnosticReport",

"status": "final",

"identifier": [

{

  "use": "official",

  "system": "http://acme.org/reports/id",

  "value": "123456"

}

],

"category": [

{

  "coding": \[

    {

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

      "code": "LP7839-6",

      "display": "Anatomic-Pathology"

    }

  \]

}

],

"code": {

"coding": \[

  {

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

    "code": "60569-8",

    "display": "Pathology report of colon"

  }

\]

},

"subject": {

"reference": "Patient/14851806"

},

"encounter": {

"reference": "Encounter/97939518"

},

"effectivePeriod": {

"start": "2024-09-11T12:00:00Z",

"end": "2024-09-11T12:05:00Z"

},

"issued": "2024-09-11T13:00:00Z",

"performer": [

{

  "reference": "Practitioner/14903378",

  "display": "abhay"

}

],

"resultsInterpreter": [

{

  "reference": "Practitioner/14903378",

  "display": "kumar"

}

],

"presentedForm": [

{

  "contentType": "application/pdf;charset=utf-8",

  "data": "JVBERi0xLjQKJcOJx7zajK3/CiUgZW9mCiVQUk92aWRlcgoyCjIgMCBvYmoKPDwvVHlwZS9DYXRhbG9nL1BhZ2VzIDMgMCBSCi9PcGVuQWN0aW9uIFsvWFlaIG51bGwgbnVsbCAzMF0KPj4KZW5kb2JqCgozIDAgYXRzCjw8L1R5cGUvUGFnZXMgL0tpZHMgWzQgMCBSXQo+PgplbmRvYmpjbg=="

}

]

}

Expected Result:

201

Actual Result:422

opc-request-id: /97F20A402E5E9ADFA81BC60BE8E3FB4F/CF43201E51B4BD446AA8F09D6B0BB73C
X-Request-Id: /97F20A402E5E9ADFA81BC60BE8E3FB4F+kDfW_r71N

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Added on Sep 29 2025
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