PR-2: Coinsurance Amount

PR (Patient Responsibility)

What is PR-2?

PR-2 is a Patient Responsibility code indicating the patient owes a coinsurance percentage of the allowed amount after the payer has paid its share. Coinsurance is the patient's percentage responsibility (typically 20-40%) of the allowed amount after deductible is met.

Why Does PR-2 Occur?

  1. Standard plan coinsurance applies. The patient's plan requires a percentage copay (e.g., 20%) of the allowed amount after deductible.
  2. Out-of-network coinsurance rate applied. The patient saw an OON provider, triggering a higher coinsurance percentage (e.g., 40% instead of 20%).
  3. Service category with different coinsurance. Some plans have higher coinsurance for specialist visits, surgery, or imaging.

How to Fix PR-2 Denials

  1. Verify the coinsurance percentage against the patient's plan. Confirm the payer applied the correct in-network or out-of-network rate.
  2. Calculate the expected coinsurance: Allowed Amount x Coinsurance Percentage = Patient Responsibility.
  3. If the coinsurance amount is incorrect, compare the EOB to the plan's Summary of Benefits and file a dispute with the payer.
  4. Bill the patient for the coinsurance amount with a clear breakdown on the statement.

PR-2 by Payer

Payer Common RARC Appeal Deadline Notes
UnitedHealthcare N/A 60 days from remittance UHC coinsurance varies widely by plan. Check the 271 response for the exact percentage.
Anthem N/A 365 days from denial notice Anthem's coinsurance may differ by service category (office vs. outpatient surgery).
Aetna N/A 180 days from denial Aetna displays coinsurance details in the eligibility response.
Cigna N/A 180 days from denial Cigna's tiered plans may apply different coinsurance for preferred vs. non-preferred providers.
Medicare N/A 120 days (redetermination at MAC) Medicare Part B coinsurance is 20% of the Medicare-approved amount after deductible.

Related CARC Codes

If you are seeing PR-2, check these related codes: PR-1 (deductible), PR-3 (copay), PR-96 (non-covered charge).

Common Questions About PR-2

What is the difference between coinsurance and copay?

Coinsurance is a percentage of the allowed amount (e.g., 20% of $200 = $40). A copay is a fixed dollar amount per visit (e.g., $25 per office visit). Both are patient responsibility.

Is PR-2 a denial?

No. PR-2 is the patient's share of the cost after the payer has processed the claim. The provider collects this amount from the patient.

Altair catches PR-2 denials before submission with patient responsibility estimation. See how pre-submit claim scoring works.

← Back to CARC Code Reference Hub
This reference is for informational purposes. Always verify against current payer policies and CMS guidelines. Last updated: 2026-03-09.