Dentovio public answer
CARC 16 denial code dental
On a dental remittance, CARC 16 means: Processing stopped because a required claim detail is absent or a billing or submission field is defective.
Sourced answer
On a dental remittance, CARC 16 means: Processing stopped because a required claim detail is absent or a billing or submission field is defective. The accompanying remark code identifies the problem; a different CARC applies when an attachment itself is missing. X12 assigns it no group code, so the group code on the remittance is the payer's choice under its own contract and it, not the CARC, decides who is assigned the balance. The code's own definition requires an accompanying remark code, so a remittance carrying it without one is incomplete. Remark codes verified with it: N286, N265, N253, M53, MA36, M64, N4. Dentovio's appealability verdict — technical: fix and resubmit. This is usually not an appeal situation — correct the identified element and resubmit. Track the payer's timely-filing window while you fix it: a corrected claim must still land inside it.
- Cluster
- Practice operations
- Last verified
- 2026-08-30
- Reviewer
- None — owner-published
Dentovio is an independent publisher — not a payer, the ADA, X12, CAQH CORE, or any government agency. Code meanings and remark-code meanings on this page are Dentovio's own wording, written from the official X12 Claim Adjustment Reason Code and Remittance Advice Remark Code lists and linked back to them; X12 holds the copyright in those lists and its descriptions are not reproduced here. CDT codes are referenced by number only; CDT is the American Dental Association's copyrighted code set and this page does not reproduce ADA descriptors. Appealability verdicts are Dentovio editorial classification, not a standard. Every fact traces to the code steward's registry, a federal rule or manual, a HIPAA operating rule, an association publication, or a named payer's own document — never to a billing blog. This page was drafted with AI assistance and verified against the primary sources linked here. It has not been reviewed by a credentialed dental billing specialist, attorney, or clinician. Educational billing reference only — not billing, legal, or clinical advice. Plan contracts control individual outcomes, and processing policies usually live in the payer's provider manual rather than in the signed agreement.
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Source citations
- X12-CARC X12 Claim Adjustment Reason Codes (official list) (x12.org)
- ECFR-ERISA-CLAIMS 29 CFR 2560.503-1 — ERISA claims procedure (ecfr.gov)
- ECFR-MEDICAID-APPEALS 42 CFR 438.402 — Medicaid managed-care appeal framework (ecfr.gov)
- ECFR-MEDICAID-TIMING 42 CFR 438.408 — Medicaid managed-care appeal timing (ecfr.gov)
- DENIAL-EVIDENCE-16-1 Molina Healthcare of Ohio Provider Bulletin, August 2025 (molinahealthcare.com)
- DENIAL-EVIDENCE-16-2 MassHealth — Claim Adjustment Reason Codes and Remittance Advice Remark Codes crosswalk (posted 2026-02-12) (mass.gov)