> ## Documentation Index > Fetch the complete documentation index at: https://docs.haau3.com/llms.txt > Use this file to discover all available pages before exploring further. # Reconcile one patient's medication records > FHIR system-level operation `$reconcile-medications`. POST one patient's MedicationRequest, MedicationStatement, MedicationDispense and MedicationAdministration records, with the Medications they reference, as a `collection` or `searchset` Bundle; every entry needs a `fullUrl`. The response is one reconciled medication list: a `collection` Bundle holding one reconciled MedicationRequest per clinical drug, a Provenance for each naming the records behind it, and an OperationOutcome when a record was skipped. To evaluate the list as of another date, POST a Parameters resource with `resource` parts, or one `bundle` part, and an `asOf` part. This operation receives patient data, so send it only under an executed agreement. Nothing a request carries is stored or logged, and the operation is not offered inside a batch. The contract is published at https://fhir.haau3.com/OperationDefinition-reconcile-medications.html. ## OpenAPI ````yaml /api-reference/openapi.json post /v1/fhir/r4/$reconcile-medications openapi: 3.1.0 info: title: haau3 Platform API version: 1.0.0 description: >- The haau3 platform API. Endpoints require a free API key — send it as `Authorization: Bearer `. Requests without a valid key return 401. Create a key in the dashboard at https://platform.haau3.com. servers: - url: https://api.haau3.com description: Production security: - bearerAuth: [] tags: - name: Scheduling description: Provider availability (SMART Scheduling Links) — slots and publishers. - name: Terminology description: >- FHIR terminology operations over the code systems listed in TerminologyCapabilities. Some are resolved from their own source when you ask; others are held here at a named release, which that resource also names. - name: Provider directory description: >- FHIR Practitioner and PractitionerRole, resolved from the national provider directory. Resolution, not discovery: bring an NPI and get what the directory publishes for it. - name: Questionnaires description: >- FHIR Questionnaire, served as its source publishes it. This service holds copies of a curated set and reaches any other questionnaire its source publishes by canonical URL. Read one by id, and build the QuestionnaireResponse in your own application. - name: MedList description: >- One reconciled medication list from one patient's FHIR medication records, as US Core MedicationRequests with a Provenance for each. This operation receives patient data, so send it only under an executed agreement. paths: /v1/fhir/r4/$reconcile-medications: post: tags: - MedList summary: Reconcile one patient's medication records description: >- FHIR system-level operation `$reconcile-medications`. POST one patient's MedicationRequest, MedicationStatement, MedicationDispense and MedicationAdministration records, with the Medications they reference, as a `collection` or `searchset` Bundle; every entry needs a `fullUrl`. The response is one reconciled medication list: a `collection` Bundle holding one reconciled MedicationRequest per clinical drug, a Provenance for each naming the records behind it, and an OperationOutcome when a record was skipped. To evaluate the list as of another date, POST a Parameters resource with `resource` parts, or one `bundle` part, and an `asOf` part. This operation receives patient data, so send it only under an executed agreement. Nothing a request carries is stored or logged, and the operation is not offered inside a batch. The contract is published at https://fhir.haau3.com/OperationDefinition-reconcile-medications.html. operationId: reconcileMedications requestBody: required: true content: application/fhir+json: schema: oneOf: - type: object properties: resourceType: type: string const: Bundle type: type: string minLength: 1 entry: type: array items: type: object properties: fullUrl: type: string resource: type: object properties: resourceType: type: string minLength: 1 required: - resourceType additionalProperties: {} search: type: object properties: mode: type: string additionalProperties: {} additionalProperties: {} required: - resourceType - type additionalProperties: {} - type: object properties: resourceType: type: string const: Parameters parameter: type: array items: type: object properties: name: type: string minLength: 1 resource: type: object properties: resourceType: type: string minLength: 1 required: - resourceType additionalProperties: {} valueDateTime: type: string required: - name additionalProperties: {} required: - resourceType additionalProperties: {} responses: '200': description: >- The reconciled list: a FHIR `Bundle` of type `collection` conforming to haau3 Reconciled Medication Bundle, returned as the response body itself. content: application/fhir+json: schema: type: object additionalProperties: true '400': description: >- The request was refused: a resource of another type, records that name two patients or none, a Bundle of another type, a resource part with no id, or malformed content. The OperationOutcome names the reason. content: application/fhir+json: schema: $ref: '#/components/schemas/OperationOutcome' '401': description: Missing or invalid API key. content: application/json: schema: $ref: '#/components/schemas/AuthError' '405': description: The operation is invoked with POST only. content: application/fhir+json: schema: $ref: '#/components/schemas/OperationOutcome' '406': description: >- A FHIR release this endpoint does not serve was requested via the `fhirVersion` media-type parameter. content: application/fhir+json: schema: $ref: '#/components/schemas/OperationOutcome' '413': description: The request body is over 16 MiB. content: application/fhir+json: schema: $ref: '#/components/schemas/OperationOutcome' '502': description: >- The terminology store behind RxNorm could not be reached. No partial list is returned. content: application/fhir+json: schema: $ref: '#/components/schemas/OperationOutcome' '503': description: >- RxNorm is not configured on this deployment, no release has been published to it, or the release changed while the request was being answered. No partial list is returned. content: application/fhir+json: schema: $ref: '#/components/schemas/OperationOutcome' '504': description: >- The terminology store behind RxNorm did not respond in time. No partial list is returned. content: application/fhir+json: schema: $ref: '#/components/schemas/OperationOutcome' components: schemas: OperationOutcome: type: object properties: resourceType: type: string enum: - OperationOutcome issue: type: array items: type: object properties: severity: type: string enum: - fatal - error - warning - information code: type: string details: type: object properties: text: type: string additionalProperties: true diagnostics: type: string expression: type: array items: type: string required: - severity - code additionalProperties: true required: - resourceType - issue AuthError: type: object properties: error: type: string examples: - API key required message: type: string required: - error - message securitySchemes: bearerAuth: type: http scheme: bearer description: >- Your platform API key (`haau3_sk_…`), sent as `Authorization: Bearer `. ````