> ## Documentation Index
> Fetch the complete documentation index at: https://docs.clinikapi.com/llms.txt
> Use this file to discover all available pages before exploring further.

# Patch (FHIR)

> Update a FHIR R4 resource using JSON Patch.

## Patch a FHIR Resource

```bash theme={null}
curl -X PATCH https://api.clinikapi.com/v1/fhir/Patient/pt_abc123 \
  -H "x-api-key: clk_live_abc123" \
  -H "Content-Type: application/json-patch+json" \
  -d '[
    { "op": "replace", "path": "/name/0/family", "value": "Johnson" },
    { "op": "add", "path": "/telecom/-", "value": { "system": "phone", "value": "+1-555-0200" } }
  ]'
```

Uses standard [JSON Patch (RFC 6902)](https://datatracker.ietf.org/doc/html/rfc6902) operations.