Seeing PR 1, PR 2, or PR 3 denial codes in medical billing can create confusion, especially when determining whether the payer denied the claim or assigned a portion of the cost to the patient. These codes are closely tied to patient financial responsibility: PR 1 indicates a deductible amount, PR 2 represents coinsurance, and PR 3 refers to a copayment amount. Exploring these distinctions is essential for accurate payment posting, cleaner patient statements, and a healthier revenue cycle.
In this article, we’ll break down what each PR code means, why it appears on an ERA or EOB, how PR 1, PR 2, and PR 3 differ, and the practical steps billing teams can take to handle each adjustment correctly.
What Does PR Mean in Medical Billing?
In medical billing, PR stands for Patient Responsibility. It is a Claim Adjustment Group Code used on remittance information to indicate that a particular adjustment amount is assigned to the patient rather than the payer or provider. CMS explains that Group Codes identify financial responsibility for unpaid portions of a claim, and PR assigns that responsibility to the patient.
PR codes frequently appear alongside a Claim Adjustment Reason Code (CARC) that explains why the amount became the patient’s responsibility. This is where PR 1, PR 2, and PR 3 come into play:
- PR 1: Deductible amount
- PR 2: Coinsurance amount
- PR 3: Copayment amount
Understanding the combination of the PR group code, CARC, and any applicable Remittance Advice Remark Codes helps billing teams determine how the payer processed the claim and what should happen to the remaining balance.
Are PR 1, PR 2, and PR 3 Really Denial Codes?
Although terms such as PR 1 denial code, PR 2 denial code, and PR 3 denial code are commonly used in medical billing searches and everyday conversations, these codes do not necessarily mean that an insurance company denied the underlying healthcare service.
Instead, they generally represent patient cost-sharing adjustments after claim adjudication. CMS lists CARC 1 as deductible amount, CARC 2 as coinsurance amount, and CARC 3 as copayment amount.
This distinction matters. Treating every PR adjustment like a conventional denial can lead to unnecessary claim resubmissions, incorrect write-offs, or inaccurate patient billing.
What Is PR 1 Denial Code in Medical Billing?
The PR 1 denial code indicates that an amount has been applied to the patient’s deductible. CARC 1 is officially defined as “Deductible Amount.”
A deductible is generally an amount an insured individual must pay for covered healthcare services before their health plan begins paying according to the terms of their coverage.
For a medical practice, PR 1 usually means the payer processed the claim but determined that some or all of the allowed amount falls under the patient’s deductible responsibility.
Why Does PR 1 Occur?
PR 1 can appear when the patient’s annual deductible has not yet been satisfied or when only part of it has been met.
For example, suppose the payer allows $300 for a covered service, and the patient still has $500 remaining on their deductible. Depending on the patient’s plan and claim circumstances, the payer may apply the $300 allowed amount toward the deductible. The ERA may then show that amount as patient responsibility rather than a payer payment.
The important point is that PR 1 does not automatically indicate a billing or coding mistake. It can simply reflect how the patient’s insurance benefits apply to that particular claim.
How to Handle PR 1 Denial Code
When PR 1 appears, avoid immediately resubmitting the claim or sending the balance to the patient. Instead, review the claim systematically.
Start by comparing the ERA or EOB with the patient’s eligibility and benefit information for the date of service. Confirm the allowed amount and the deductible applied by the payer. Billing staff should also determine whether the patient has applicable secondary or supplemental insurance.
If the deductible appears inconsistent with the patient’s benefits, investigate the discrepancy with the payer. When the amount is valid, all applicable coverage has been considered, and billing rules permit collection, the balance can be moved to patient responsibility.
What Is PR 2 Denial Code in Medical Billing?
The PR 2 denial code represents a coinsurance amount assigned to the patient. CARC 2 is defined as “Coinsurance Amount.”
Unlike a deductible, coinsurance commonly requires patients to pay a percentage of the cost of covered healthcare services under their plan. CMS describes coinsurance as the percentage of costs an individual pays after meeting a deductible, depending on the plan.
For example, if a plan requires 20% coinsurance and the applicable allowed amount is $500, the patient’s coinsurance could be $100, subject to the specific terms of the plan. The payer would process its portion according to the patient’s benefits.
Why Does PR 2 Occur?
PR 2 typically appears because the patient’s insurance plan includes a coinsurance requirement for the service received.
The actual amount depends on factors such as the payer’s allowed amount, the patient’s benefits, network status, and how other cost-sharing requirements apply to the claim.
Because coinsurance often involves a percentage calculation, billing teams should verify the payer’s processing rather than assuming every PR 2 amount is automatically correct.
How to Handle PR 2 Denial Code
Begin by checking the ERA or EOB and verifying the patient’s coverage for the date of service. Compare the coinsurance percentage and resulting amount with the patient’s benefits and the payer’s allowed amount.
If secondary insurance is available, determine whether the remaining amount should be submitted or crossed over before billing the patient.
Once the calculation and coverage are verified, post the payer payment and adjustments accurately. Any valid remaining patient responsibility can then be handled according to the practice’s collection procedures and applicable billing requirements.
What Is PR 3 Denial Code in Medical Billing?
The PR 3 denial code indicates a copayment amount. CARC 3 is officially identified as “Co-payment Amount.”
A copayment, commonly called a copay, is a fixed amount a patient may be required to pay for a covered healthcare service under their insurance plan.
Depending on the plan, different services may carry different copays. A primary care appointment, specialist visit, urgent care service, or another type of service may each have different patient cost-sharing requirements.
Why Does PR 3 Occur?
PR 3 commonly appears because the patient’s insurance benefits require a copayment for the service.
Suppose an office visit has an allowed amount of $150, and the patient’s plan requires a $30 copay. The payer may assign $30 as patient responsibility while processing the rest of the eligible amount according to the patient’s benefits.
However, the practice should also check whether that $30 was already collected at the time of service. Failing to record an upfront payment correctly could result in the patient receiving a statement for money they have already paid.
How to Handle PR 3 Denial Code
Review the patient’s benefits and verify that the copay corresponds with the service received. Next, check the patient’s account to determine whether the copay was collected at check-in or before the appointment.
If it was already collected, make sure that payment has been correctly posted and applied. If the valid copay remains outstanding, it can generally be transferred to patient responsibility after applicable coverage and billing requirements have been considered.
How to Resolve PR 1, PR 2, and PR 3 in Medical Billing
Handling PR codes effectively requires more than simply moving the remaining amount to the patient’s account. A consistent workflow helps ensure that the payer processed the claim correctly and that the patient receives an accurate bill.

1. Review the ERA or EOB
Start with the payer’s remittance information. Identify the PR group code, associated CARC, allowed amount, payer payment, adjustments, and any additional remark codes.
This tells you exactly how the payer adjudicated the claim.
2. Verify Patient Eligibility and Benefits
Confirm that the patient had active coverage on the date of service and verify the relevant cost-sharing requirements.
Depending on the code, check the:
- Remaining deductible
- Coinsurance percentage
- Required copayment
- Primary and secondary coverage
- Network benefits
The information should be compared with the payer’s adjudication before transferring a balance.
3. Verify the Allowed Amount and Calculation
Check the payer’s allowed amount and ensure the patient’s share was calculated according to their benefits and applicable contractual terms.
This is particularly important with PR 2 because coinsurance may be calculated as a percentage of an applicable amount rather than simply being a predetermined dollar figure.
4. Check for Secondary Coverage
One of the most important steps is determining whether another payer may be responsible for some or all of the remaining balance.
If the patient has secondary insurance, follow the applicable coordination-of-benefits process. Do not automatically assume the patient must pay the full PR amount simply because it appears on the primary payer’s remittance.
5. Investigate Incorrect Payer Processing
If the amount doesn’t match the verified benefits or other claim information, determine why.
Check for issues involving eligibility, benefit application, network status, coordination of benefits, or other payer processing factors. Contact the payer when clarification or reprocessing is necessary.
6. Correct or Appeal When Appropriate
A PR code by itself does not necessarily require an appeal. If the deductible, coinsurance, or copay was correctly applied, submitting the same claim again is unlikely to change the result.
However, if evidence indicates that the payer processed the claim incorrectly, follow the payer’s applicable correction, reconsideration, or appeal procedure.
7. Transfer Valid Patient Responsibility
Once the payer’s calculation has been verified, other applicable coverage has been addressed, and collection is permitted, transfer the correct amount to the patient’s account.
An accurate and understandable patient statement can also reduce confusion and unnecessary calls to the billing office.
When Should You Bill the Patient for PR 1, PR 2, or PR 3?
A PR code indicates that the payer has assigned an amount to patient responsibility on the remittance, but the billing team should still verify the account before beginning collection.
Before billing the patient, confirm that:
- The payer has processed the claim correctly.
- The PR amount matches the ERA or EOB.
- Contractual adjustments have been posted correctly.
- Applicable secondary coverage has been considered.
- Previous patient payments have been applied.
- The balance complies with applicable payer contracts and billing requirements.
- No relevant patient protection prevents collection.
CMS explains that the PR group code assigns financial responsibility to the patient, while other group codes, such as CO, can indicate contractual obligations. This is why accurate adjustment posting matters. A contractual adjustment should not simply be moved to a patient’s balance as though it were a PR amount.

Improve Your Medical Billing and Denial Management Process
Correctly handling PR 1, PR 2, and PR 3 denial codes is only one part of maintaining an efficient revenue cycle. Consistent eligibility verification, accurate claim submission, payment posting, denial management, and patient billing can help healthcare organizations reduce administrative rework and improve revenue collection.
If managing these processes is consuming valuable staff time, explore our Medical Billing Services to learn how professional billing support can help streamline your revenue cycle and keep claims moving efficiently.
Conclusion
PR 1, 2, and PR 3 denial codes in medical billing make it easier to determine why a payer has assigned part of a claim’s cost to the patient. PR 1 represents a deductible amount, PR 2 represents coinsurance, and PR 3 represents a copayment.
Although they are commonly called denial codes, these adjustments generally reflect patient cost sharing rather than a traditional denial of the underlying service. Billing teams should therefore verify the ERA or EOB, patient benefits, payer calculations, secondary coverage, previous payments, and applicable billing requirements before taking action. A consistent process helps prevent unnecessary claim resubmissions, incorrect patient statements, and avoidable revenue cycle delays.
Frequently Asked Questions
Q: Can PR 1, PR 2, and PR 3 appear on the same claim?
Ans: Yes. More than one form of patient cost sharing may apply depending on the patient’s insurance benefits and how the claim is adjudicated.
Q: Should PR amounts be written off?
Ans: Not automatically. PR generally identifies patient responsibility, while contractual adjustments use other group-code treatment. Always review the remittance and applicable contract before posting a write-off.
Q: Can secondary insurance pay a PR amount?
Ans: Potentially. Depending on coordination-of-benefits rules and the patient’s coverage, a secondary payer may cover some or all of an amount assigned by the primary payer.
Q: What if a patient disagrees with a PR amount?
Ans: Review the ERA/EOB, benefits, claim processing, and previous patient payments. Contact the payer if the adjudication appears inconsistent with the patient’s coverage.
Q: Can insurance pay a claim and still assign a PR code?
Ans: Yes. A payer can make a payment while assigning another portion of the allowed amount to the patient’s deductible, coinsurance, or copayment.
Q: Does a PR code mean the patient should always be billed immediately?
Ans: No. Check secondary coverage, previous payments, contractual requirements, and applicable billing protections before sending a patient statement.




