National Provider Identifier - missing.
Group code
CO or PI
Category
Billing
Risk level
High
Appealable
No - Correction Required
Common RARC pairings
RARCs (Remittance Advice Remark Codes) provide the specific reason detail alongside CARC 206 on the 835 electronic remittance. These are the RARCs seen most often with this CARC.
| RARC | Meaning |
|---|---|
| N31 | Missing/incomplete/invalid prescribing provider identifier. |
| N77 | Missing/incomplete/invalid designated provider number. |
| N253 | Missing/incomplete/invalid attending provider primary identifier. |
| N257 | Missing/incomplete/invalid billing provider/supplier primary identifier. |
| N262 | Missing/incomplete/invalid operating provider primary identifier. |
| N265 | Missing/incomplete/invalid ordering provider primary identifier. |
| N286 | Missing/incomplete/invalid referring provider primary identifier. |
| N290 | Missing/incomplete/invalid rendering provider primary identifier. |
See the full resolution workflow for CARC 206
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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