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Denial Code Lookup

Search by code number, keyword, or describe your denial scenario. Get appealability, win rates, and step-by-step appeal guidance.

Try: 16 • authorization • medical necessity • timely filing

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Most Common Denial Codes

These codes account for the majority of denial lookups. Click any code for full details and appeal guidance.

Claim/service lacks information or has submission/billing error(s)

Exact duplicate claim/service

Precertification/authorization/notification/pre-treatment absent

These are non-covered services because this is not deemed a 'medical necessity' by the payer

Charge exceeds fee schedule/maximum allowable or contracted/legislated fee arrangement

Non-covered charge(s)

The procedure code is inconsistent with the modifier used

Deductible Amount

The time limit for filing has expired

Expenses incurred after coverage terminated

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