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PR-2 Denial Code: Coinsurance Amount

What PR-2 means on the remittance, when the patient owes it, and how to collect it correctly.

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What Does PR-2 Mean?

PR-2 reports the patient's coinsurance — their percentage share of the allowed amount after the deductible. Like PR-1, it isn't a denial; it's the payer defining how the allowed amount splits between plan and patient. The amount is billable to the patient.

Code group: PR (Patient Responsibility)  ·  Appealable: Only for accumulator errors (OOP max already met) or wrong-percentage application. Otherwise it's routine patient responsibility.

Why PR-2 Happens

  • Standard plan design: after the deductible, the patient owes a fixed percentage (commonly 10–40%) of every allowed amount until reaching the out-of-pocket maximum.
  • Higher-than-expected coinsurance usually means an out-of-network claim — OON coinsurance rates are steeper and accumulate to a separate, larger out-of-pocket max.
  • Coinsurance appearing when the patient expected a flat copay: many plans use copays for office visits but coinsurance for procedures, imaging, and facility services — same visit, two cost-sharing models.
  • The payer's out-of-pocket accumulator hasn't caught up — coinsurance applied even though the patient recently hit their OOP max on other claims.

How to Handle PR-2 — Step by Step

1
Confirm the math: coinsurance should be the patient's percentage of the allowed amount — never of billed charges. If the percentages don't match the benefit, or cost sharing was applied past the OOP max, request reprocessing.
2
Bill the secondary payer first when one exists; coinsurance is exactly what secondaries are designed to pick up.
3
Statement the patient promptly with plain language: what insurance paid, what percentage the plan assigns to them, and how to pay.
4
For recurring services (infusions, therapy series, dialysis), set patient expectations at the start — a predictable monthly coinsurance is far easier to collect than a surprise.
5
Track PR-2 by payer for underpayment detection: if allowed amounts drop, coinsurance drops with them, and that pattern is your early warning.

Billing the Patient Correctly

Adapt this wording to your claim — replace the bracketed fields and attach the documentation it references:

PR-2 is collected, not appealed — except when misapplied: 'The member reached their out-of-pocket maximum on [date] per your accumulator; claims adjudicated after that date should carry no member coinsurance. We request reprocessing of claim [number] with cost sharing removed.'

How to Prevent PR-2

  • Quote expected coinsurance before procedures using verified benefits — surprise percentages are the #1 patient billing complaint.
  • Verify network status before scheduling; OON coinsurance shocks patients and practices alike.
  • Watch accumulators for high-utilization patients so post-OOP-max claims process clean.

Related Denial Codes

PR-1 — DeductiblePR-3 — CopaymentCO-45 — Exceeds fee schedule

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Reviewed by the LegitMedBilling denial management team. This guide is general billing information, not legal or payer-specific advice — always verify against your payer contract and current policy.

Frequently Asked Questions

What's the difference between PR-1, PR-2, and PR-3?
They're the three flavors of patient cost sharing on a remittance: PR-1 is deductible, PR-2 is coinsurance (a percentage of allowed), PR-3 is copayment (a flat amount). All three are billable to the patient; everything coded CO is not. Keeping that line clean is basic billing compliance.
The patient hit their out-of-pocket max but coinsurance keeps appearing. Why?
Claims race: services adjudicated before the max-hitting claim posted still carry coinsurance, and payer accumulators can lag. Pull the accumulator status, identify claims processed after the max was genuinely met, and request reprocessing — patients are owed those corrections.
Should coinsurance be calculated on our charge or the allowed amount?
Always the allowed amount. If a remittance shows coinsurance computed on billed charges (it happens, especially out-of-network), the patient is being overcharged and the claim deserves a dispute. In-network, the difference between charge and allowed is CO-45 write-off, never patient responsibility.

Hassan Raza AwanReviewed by Hassan Raza Awan, Founder — 4+ years of hands-on U.S. medical billing experience. General billing information — verify against current CMS guidance and your payer contracts.

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