OA 18 Denial Code – Exact Duplicate Claim (2024)
OA-18 denial code means exact duplicate claims or services. Exact duplicate means submitted claim is duplicate of another claim in terms of date of service (DOS), Type of service, Provider number, procedure code or CPT, place of service (POS) and billed amount. OA 18 comes in Medicare and in the case of other insurance, it … Read more
