Attachment/other documentation referenced on the claim was not received.
Group code
CO or PI
Category
Documentation
Risk level
High
Appealable
Yes
Common RARC pairings
RARCs (Remittance Advice Remark Codes) provide the specific reason detail alongside CARC 163 on the 835 electronic remittance. These are the RARCs seen most often with this CARC.
| RARC | Meaning |
|---|---|
| M19 | Missing oxygen certification/re-certification. |
| M23 | Missing invoice. |
| M29 | Missing operative note/report. |
| M30 | Missing pathology report. |
| M31 | Missing radiology report. |
| M60 | Missing Certificate of Medical Necessity. |
| M127 | Missing patient medical record for this service. |
| M130 | Missing invoice or statement certifying the actual cost of the lens, less discounts, and/or the type of intraocular lens used. |
See the full resolution workflow for CARC 163
Members of the EDI-Code Intelligence Lab get the step-by-step rework path, appeal language, root-cause drivers, and prevention checklist for every CARC and RARC pairing, plus payer-specific quirks.
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