---
title: "Create With Mrn"
method: POST
path: "/patients/v1/with_mrn"
tags: ["v1"]
---

# Create With Mrn

`POST /patients/v1/with_mrn`

Adds a patient and hydrates their MRN with a pre-existing MRN.  Once this patient is created their MRN will not be editable. BadRequestError is returned when the MRN is greater than 20 characters. VersionConflictError is returned when the patient's external ID is already in use.

## Query parameters

- `skip_duplicate_check` boolean

## Headers

- `Authorization` string, required

## Request body

- V1MutablePatientWithMrn — unresolved $ref

## Response `200`

Response with status 200

- V1Patient — unresolved $ref

## Other responses

- `400` — Error response with status 400
- `409` — Error response with status 409

---

[API](https://skmtc.net/joincandidhealth/apis/api-reference.md) · [All operations](https://skmtc.net/joincandidhealth/apis/api-reference/llms.txt) · [OpenAPI document](https://skmtc-service-staging.skmtc.workers.dev/v1/apis/joincandidhealth/api-reference/revisions/7cc5974e4128/schema)