Dentovio public answer

CO 197 denial code dental

On a dental remittance, code CO 197 means: Required precertification, prior authorization, notification, or pre-treatment review was not obtained before the service. depends: check the facts first. If authorization truly was required and skipped, most contracts make this a provider write-off — the appeal angle is narrow: emergencies, retro-authorization windows the plan allows, or proof authorization was actually obtained (reference numbers win these). Florida adds a payer-side rule for 2025-renewed contracts: a claim for a procedure specifically included in a prior authorization cannot be denied except in enumerated circumstances.