Denial Code 182 (CO-182, PR-182) — Meaning & What to Do

Claim Adjustment Reason Code (CARC)

What denial code 182 means: The procedure modifier was invalid on the date of service.
What to do about denial code 182: Ask the provider's billing office to explain or correct this, and resubmit if needed.

CO-182 vs PR-182 vs OA-182: what the prefix means

Code on your EOBWhat the prefix meansWho typically pays
CO-182Contractual obligation — the provider writes the amount offUsually not the patient
PR-182Patient responsibilityThe patient
OA-182Other adjustmentOften another payer or plan

The prefix tells you who is expected to absorb the amount; the number (182) tells you why.

Related codes

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Frequently asked questions about Denial code 182

What does denial code 182 mean on my EOB?

The procedure modifier was invalid on the date of service.

What should I do about denial code 182?

Ask the provider's billing office to explain or correct this, and resubmit if needed.

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Last reviewed 2026-07-07 · MDBillCheck Editorial Team. Plain-English explanations are original wording; always verify the specific reason with your insurer.