MA104
What This Code Means
The claim is missing, incomplete, or has an invalid date the patient was last seen or the provider identifier of the attending physician. This code was deactivated by X12 (as of 01/31/2004). See: M128, M57.
How to Resolve or Appeal
- This is a historical/deactivated code — no longer used on current claims. If seen on an old remittance, refer to the replacement code noted above where available.
More Denial Codes to Check
Educational reference only — not medical or legal advice. Always confirm code usage and appeal rights with the specific payer.