Which X12 claim status and acknowledgment transactions are supported by Claim.MD?

  • Published on Jan 5, 2026
  • 1 minute(s) read
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Question:
Does Claim.MD support X12 transactions such as 276, 277, 278, or 999 through the API?

Answer:
Claim.MD handles claim status and acknowledgments differently than traditional X12 workflows:

  • 276 (Claim Status Request):
    A 276 request is not required when using Claim.MD. Claim status updates are automatically returned without the need to submit a status inquiry.

  • 277 (Claim Status Response):
    277 transactions are available through SFTP only. When using the API, claim status information is returned in JSON or XML format instead of X12.

  • 278 (Referral Authorization):
    278 transactions are not supported by Claim.MD.

  • 999 (Implementation Acknowledgment):
    999 transactions are not returned. Rather than rejecting an entire file due to a small claim-level issue, Claim.MD returns rejections at the individual claim level.
    In the event of a significant file-level issue, an error is returned in a .result file instead.

This approach allows for more granular error handling and avoids unnecessary rejections of entire files due to isolated issues.