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Dentovio public answer
On a dental remittance, CARC B7 means: The payer's own file did not have this dentist approved to bill it for this service on the day the treatment happened.
On a dental remittance, CARC B7 means: The payer's own file did not have this dentist approved to bill it for this service on the day the treatment happened. 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. No source read for this page pairs a specific remark code with it. Dentovio's appealability verdict — depends: check the facts first. Establish the provider's enrolment and credentialing status as of the date of service, from the payer's record rather than the practice's. If the record is wrong, that is a correctable payer-data problem; if the provider genuinely was not eligible that day, whether anything can be back-dated is the payer's enrolment policy to answer, not the claim's.
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. 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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