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# X12 to FHIR Converter

> For the full documentation index, see: https://docs.mulesoft.com/llms.txt

The
[X12 to FHIR converter](https://anypoint.mulesoft.com/exchange/org.mule.examples/hls-fhir-to-x12-sys-api/)
comes with a ready to use template for [X12](https://x12.org/) to FHIR conversion. This template can
be extended or modified to meet specific conversion requirements. The converter converts FHIR R4 to
X12 formats and its responses from X12 to FHIR R4.

## Functional Diagram

![X12 to FHIR converter functional architecture](/mulesoft/current/en-us/healthcare/latest/_images/hls-x12-fhir-fx-diagram.svg)

## Advantages

- Removes manual work associated with X12 and FHIR conversion

- X12 connector is preconfigured for this use case to easily read & write X12 EDI events

- Supports multiple X12 message formats and use cases:

  - 270 and 271 (Eligibility Verification Inquiry)

  - 278, 278i, and 275 (Prior Authorization)

  - 837 (Claims)

- Solution can be extended to support any custom fields and segments

- Highly performant with underlying DataWeave engine

## See Also

- [Prerequisites](https://docs.mulesoft.com/healthcare/latest/prerequisites)

- [MuleSoft Accelerator for Healthcare](https://docs.mulesoft.com/healthcare/latest/)