Live editor

FHIR Playground

Pick a profile, tweak the JSON, and run the built-in US Core validator. Errors are structural; warnings flag Must Support elements that are missing.

Example:

resource.json61 lines

{
  "resourceType": "Patient",
  "id": "example",
  "meta": {
    "profile": [
      "http://hl7.org/fhir/us/core/StructureDefinition/us-core-patient"
    ]
  },
  "extension": [
    {
      "url": "http://hl7.org/fhir/us/core/StructureDefinition/us-core-race",
      "extension": [
        {
          "url": "ombCategory",
          "valueCoding": {
            "system": "urn:oid:2.16.840.1.113883.6.238",
            "code": "2106-3",
            "display": "White"
          }
        },
        {
          "url": "text",
          "valueString": "White"
        }
      ]
    },
    {
      "url": "http://hl7.org/fhir/us/core/StructureDefinition/us-core-ethnicity",
      "extension": [
        {
          "url": "ombCategory",
          "valueCoding": {
            "system": "urn:oid:2.16.840.1.113883.6.238",
            "code": "2186-5",
            "display": "Not Hispanic or Latino"
          }
        },
        {
          "url": "text",
          "valueString": "Not Hispanic or Latino"
        }
      ]
    }
  ],
  "identifier": [
    {
      "system": "http://hospital.example.org/mrn",
      "value": "12345"
    }
  ],
  "name": [
    {
      "family": "Smith",
      "given": [
        "Amy"
      ]
    }
  ],
  "gender": "female",
  "birthDate": "1987-02-20"
}

validation

Click Validate to check your resource.

Errors block conformance · Warnings flag Must Support gaps

Note: this in-browser validator covers JSON, structure, profile claim, required elements, and Must Support presence. For full FHIRPath invariants and value-set membership, run the official HL7 FHIR Validator.