Decode Any Denial or
Remark Code in Seconds
Every claim adjustment reason code (CARC) and remittance advice remark code (RARC), explained the way a senior biller would: what it means, whether the patient can be billed, and how to fix the claim.
297Denial Codes
1137Remark Codes
189Retired Codes Tracked
Denial Codes (CARC)
Why the claim paid differently than billed — group code liability, causes, fix & appeal steps.
Remark Codes (RARC)
The fine print on your ERA — what each remark points at and exactly what to send or correct.
Instant Search
Full-text search across every code page — by code, keyword, or the situation you're staring at.
Most-Looked-Up Codes
45CO 45 — Charge exceeds fee schedule97CO 97 — Bundled / included in another service197CO 197 — Prior authorization missing204PR 204 — Not covered under benefit plan16CO 16 — Claim lacks information29CO 29 — Timely filing expired22CO 22 — Coordination of benefits50CO 50 — Not medically necessaryN130N130 — Plan benefit restrictionsN290N290 — Missing rendering provider IDMA130MA130 — Claim unprocessableN95N95 — Provider type cannot bill service