Translating X12 to FHIR

Last updated: Dec 10, 2025
PRODUCT OWNER
PAYER
HCO
HEALTH TECH VENDOR

X12 is the HIPAA-adopted standard for exchanging insurance data. Like with your elders, you should respect X12 since it standardizes administrative data among healthcare organizations and payers.

As the industry strives for better interoperability, though, you need a modernized solution for working with a paradigm like X12.

Who needs to translate from X12 to FHIR®

We simplify and automate processes that use X12 for data exchange. For example, say goodbye to manual workflows like faxing for prior authorizations. Redox can benefit customers on any side of the X12 data exchange, including:

  • vendors
  • providers
  • payers
  • clearinghouses
  • prior authorization management companies

How X12 translation works

You push X12 data with Redox FHIR® writeback operations to a cloud destination. Then, you can access the data with FHIR® whenever you need.

With X12 translation, you can perform these Redox API actions with FHIR®:

Mappings between X12 messages and FHIR®

Check out which X12 messages we normalize below.

X12 message
Description
FHIR® operation
270
Find out what’s included in a patient’s insurance coverage before offering services.
CoverageEligibilityRequest/$submit
271
Respond with a patient’s eligibility information to the requesting healthcare organization.
CoverageEligibilityResponse/$respond
275
Exchange additional patient information for a prior authorization.
Claim/$attach
276
Check the status of a previously submitted claim.
Claim/$status
277
Respond with the status of a submitted claim.
ClaimResponse/$status-response
278
Request an approval for a prior authorization request.
Claim/$submit-preauthorization or Claim/$submit
278
Respond with an approve/decline to a prior authorization request.
ClaimResponse/$respond
835
Respond with payment for a submitted claim.
ClaimResponse/$payment
837P
Submit a claim for professional billing (i.e., provider time or services during an outpatient visit).
Claim/$submit-professional
837I
Submit a claim for institutional billing (i.e., nursing care, services, medications, or supplies used during an inpatient visit).
Claim/$submit-institutional