M79: Missing/incomplete/invalid charge
The claim line does not show a charge amount, or the amount submitted was zero, blank, or otherwise unreadable by the payer's system.
Corrective actions
- 1
Check the claim line charge field
Review the 837 file or paper claim to confirm every service line has a valid, non-zero charge amount entered.
- 2
Resubmit as a corrected claim
Add the correct billed charge for each line and resubmit; do not simply resend the identical claim, since a duplicate charge omission will repeat the same rejection.
Denial codes it is usually paired with
M79 is the detail behind a CARC rather than an adjustment in its own right. These are the denial codes our dataset records it alongside.
Frequently asked questions
What does remark code M79 mean?
The claim line does not show a charge amount, or the amount submitted was zero, blank, or otherwise unreadable by the payer's system.
Retrieved 2026-07-18.
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Denial7 provides billing and administrative guidance based on published CMS and X12 sources. It is not medical advice, not a coverage determination, and not a guarantee of payment. NCCI and MUE edits are republished quarterly and payer policies vary by contract. Always confirm against the payer's own current policy before submitting or appealing.