CARC Code
182
Invalid Procedure Modifier on DOS
The modifier attached to the procedure code was not valid or appropriate for use on the date the service was provided. This means the modifier either didn't exist yet, was already outdated, or wasn't recognized as a valid modifier at that time.
codingHow to resolve this denial
▶✓ Pre-action checklist — verify before contacting the payer
Review the full remittance advice (ERA/EOB) for additional RARC codes that explain the denial.
Verify the claim was submitted with correct patient eligibility and benefit information.
Check if this denial applies to a specific line item or the entire claim.
▶More about CO-182 — stats, related codes, appeal template
82%
Recovery Rate
7-14 days
Avg. Resolution
Medium
Difficulty
Occasional
Frequency
Payer-Specific Notes
How major payers handle CARC 182 by specialty.
UnitedHealthcare
Review UHC's online claim status tool for additional detail on this adjustment.
Common 835 Combinations
CARC 182 most often appears with these Group Code + RARC combinations on 835 remittances.
Appeal Letter Template
Generic appeal template for CARC 182 denials.
We are submitting a formal appeal for claim [CLAIM_NUMBER] for patient [PATIENT_NAME], date of service [DOS]. This claim was denied/adjusted with CARC 182 indicating: "Procedure modifier was invalid on the date of service.." We have reviewed the claim and are providing the attached documentation to support reconsideration. [SUPPORTING_DOCUMENTATION]. Please reconsider payment per the terms of our contract.
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