Claim denials can slow cash flow, increase administrative work, and create unnecessary friction between healthcare practices and their patients. Among eligibility-related denials, the PR 27 denial code deserves particular attention because it indicates a fundamental coverage problem: according to the payer, the patient’s insurance coverage ended before the healthcare service was provided.
The standardized description for Claim Adjustment Reason Code (CARC) 27 is “Expenses incurred after coverage terminated.” X12 lists CARC 27 as an active adjustment reason code, and CMS resources use the same description.
But receiving PR-27 doesn’t mean your billing team should immediately transfer the balance to the patient.
Coverage dates, insurance information, the date of service, other active coverage, and payer records should first be investigated.
This guide explains the PR 27 denial code meaning, common causes, resolution process, appeal options, and prevention strategies healthcare practices can use to protect revenue.
What Is the PR 27 Denial Code?
PR 27 means that expenses were incurred after the patient’s insurance coverage terminated.
Breaking the code into two parts makes it easier to understand:
PR = Patient Responsibility
27 = Expenses incurred after coverage terminated
For example, suppose a patient’s health insurance terminated on March 31, but the patient received treatment on April 10. If a claim for the April 10 service is submitted to the terminated insurance plan, CARC 27 may appear on the remittance.
However, eligibility information isn’t always straightforward. Incorrect insurance information, retroactive coverage changes, payer data issues, or submitting the claim to an old plan can potentially produce a coverage-related denial.
That’s why verification should come before patient billing.
What Does “Expenses Incurred After Coverage Terminated” Mean?
The phrase simply means that, according to the payer’s records:
Coverage termination date → occurred first
Date of service → occurred afterward
Therefore, the insurer considers the service outside the patient’s active coverage period.
Common scenarios include a patient changing employers, switching insurance plans, losing eligibility, allowing coverage to lapse, or presenting an outdated insurance card.
PR-27 can appear on an Explanation of Benefits (EOB) or Electronic Remittance Advice (ERA/835) after claim adjudication.
What Causes PR 27 Denials?
Understanding the root cause is more valuable than repeatedly correcting individual claims.
1. Insurance Was Actually Terminated
The simplest explanation is that the patient’s policy genuinely ended before the date of service.
The practice may still have an old insurance card or policy stored in its EHR or practice management system.
2. Eligibility Wasn’t Verified Before the Visit
Failing to verify eligibility before providing services increases the risk of billing inactive insurance.
Even established patients should not automatically be assumed to have the same coverage at every visit.
3. The Patient Changed Insurance Plans
Patients frequently change coverage because of employment changes, annual enrollment decisions, Medicare plan changes, or other life events.
The practice may unknowingly submit the claim to the previous payer.
4. Outdated Patient Information
The patient may have active coverage but the practice could be working from outdated policy information.
This is one reason front-desk registration directly affects revenue-cycle performance.
5. Incorrect Claim Information
Review the claim itself.
An incorrect date of service, member ID, payer selection, or demographic information can potentially cause an otherwise payable claim to fail eligibility checks.
6. Retroactive Coverage Termination
Coverage can sometimes be terminated retroactively, meaning eligibility appeared active earlier but was later updated.
These situations require careful documentation and payer follow-up rather than automatically assuming the original eligibility check was correct or incorrect.
7. Coordination of Benefits Issues
The patient may have another active insurance plan that should have been billed.
Determining the correct primary and secondary payer can therefore be an important part of PR-27 resolution.
PR 27 Denial Code: Quick Resolution Table
| Situation | What It May Mean | Recommended Action |
|---|---|---|
| Coverage terminated before DOS | PR-27 may be valid | Check for another active payer |
| Coverage active on DOS | Possible payer/claim error | Gather evidence and dispute/appeal |
| Old insurance billed | Wrong payer submitted | Obtain current insurance and rebill |
| Incorrect DOS/member information | Claim data problem | Correct and resubmit as appropriate |
| Another payer was active | COB/payer issue | Verify payer order and submit correctly |
| Retroactive termination | Coverage changed after verification | Investigate payer records and appeal when supported |
| No valid insurance existed | Potential patient responsibility | Follow payer, contract and financial-policy requirements |
How to Fix PR 27 Denial Code: Step-by-Step
Step 1: Verify the Exact Termination Date
Start with eligibility.
Use the payer portal, electronic eligibility system, or payer representative to determine the patient’s exact coverage effective and termination dates.
Compare the termination date against the date of service (DOS).
If the service occurred after coverage terminated, continue investigating for alternative insurance.
If the service occurred while coverage was active, you may have grounds to correct or appeal the claim.
Step 2: Review the Original Claim
Check:
- Patient name and demographics
- Member/subscriber ID
- Date of service
- Payer ID
- Group number
- Insurance plan
- Primary/secondary payer order
A simple registration or claim-entry error can send a claim down the wrong path.
Step 3: Check for New or Secondary Insurance
Contact the patient when necessary and determine whether another plan was active on the date of service.
If valid replacement coverage existed, verify its effective date and determine whether the claim can be submitted to that payer.
Be especially mindful of the payer’s timely-filing requirements.
Step 4: Determine Whether PR-27 Was Applied Correctly
Don’t treat every PR-27 as automatically correct.
Compare payer information against your own eligibility records.
If your records demonstrate that the patient had active coverage on the date of service, gather that documentation.
Step 5: Correct and Resubmit When Appropriate
If your investigation finds incorrect claim information, make the necessary corrections and follow the payer’s corrected-claim or resubmission requirements.
Don’t repeatedly submit an unchanged claim. That doesn’t resolve the underlying eligibility issue.
Step 6: Appeal When Coverage Was Active
A PR 27 denial code appeal may be appropriate when reliable evidence shows that coverage was active for the date of service.
Supporting evidence may include:
- Eligibility verification records
- Payer portal confirmation
- Insurance card information
- Authorization documentation
- Payer correspondence
- Evidence of applicable coverage dates
- Corrected patient/claim information
Follow the specific payer’s appeal procedure and deadline.
Step 7: Determine Financial Responsibility
If investigation confirms that no applicable insurance coverage existed on the date of service, determine responsibility according to the remittance, payer rules, provider contracts, applicable law, and your practice’s financial policies.
Do not automatically transfer every denied balance to the patient solely because you see “27.”
The group code and contractual circumstances matter.
PR 27 vs. CO 27: What’s the Difference?
This distinction is important.
CARC 27 describes the reason for the adjustment: expenses occurred after coverage terminated. The accompanying group code adds information about how the adjustment is categorized.
| PR-27 | CO-27 | |
|---|---|---|
| Group Code | Patient Responsibility | Contractual Obligation |
| CARC | 27 | 27 |
| Core reason | Coverage terminated | Coverage terminated |
| Automatically bill patient? | Verify first | No—review contractual requirements |
| First action | Verify eligibility | Verify eligibility + contract/remittance |
| Appeal possible? | Potentially, with evidence | Potentially, depending on circumstances |
CMS documentation also demonstrates that CARC 27 can be associated with different group codes depending on the circumstances, reinforcing why billing teams should interpret the complete remittance rather than the number 27 in isolation.
PR 27 vs. PR 26
These two codes are easy to confuse.
CARC 26: Expenses incurred prior to coverage.
CARC 27: Expenses incurred after coverage terminated.
X12 lists both separately.
Think of them as opposite ends of the eligibility timeline:
PR-26 → Service too early
ACTIVE COVERAGE → Covered period
PR-27 → Service too late
That distinction can help billing teams identify the correct eligibility problem faster.
How to Prevent PR 27 Denials
The best PR-27 strategy is prevention.
Verify Eligibility Before Every Visit
Eligibility verification should be incorporated into the pre-visit or check-in workflow.
Confirm active coverage for the relevant date rather than relying only on an insurance card stored in the patient’s record.
Update Insurance Information Regularly
Ask patients whether their insurance has changed and verify updated information when appropriate.
This is particularly important around the beginning of a new plan year.
Verify Benefits, Not Just Basic Coverage
Eligibility and benefits verification can help your team understand more than whether a policy appears active.
Depending on the payer response, practices may also obtain information relevant to benefits, patient responsibility and plan requirements.
Maintain Eligibility Documentation
Keep records of eligibility checks when your systems and applicable policies allow.
If a payer later disputes coverage, historical verification information can become useful during investigation.
Train Front-Desk Staff
Front-desk errors can become billing problems weeks later.
Teams should understand the importance of accurate payer IDs, policy information, primary/secondary insurance selection, patient demographics and coverage dates.
Monitor Eligibility Denials
Don’t treat PR-27 as an isolated adjustment.
Track it.
If your practice repeatedly receives coverage termination denials, investigate where the workflow is breaking:
Scheduling → Registration → Eligibility → Billing → Claim Submission
Repeated PR-27 denials can indicate a process problem rather than bad luck.
How RCM First Helps Reduce Eligibility and Billing Denials
Preventing denials requires coordination across the entire revenue cycle.
RCM First supports healthcare practices with Revenue Cycle Management services designed to improve billing accuracy, administrative efficiency and revenue performance.
Our support includes:
- Eligibility & Benefits Verification
- Medical Billing & Coding
- Claims Submission
- Denial Management
- A/R Management & Recovery
- Virtual Patient Help Desk
- Referral & Prior Authorization
- Credentialing & Contracting
Rather than waiting for eligibility denials to accumulate, practices can build verification and claim-quality controls earlier in the revenue cycle.
Frequently Asked Questions About PR 27
What does PR 27 denial code mean?
PR-27 indicates patient responsibility associated with CARC 27, “Expenses incurred after coverage terminated.” The payer is indicating that coverage had terminated before the service date.
How do you fix PR 27?
Verify the exact coverage dates, review the claim for errors, check for another active insurance plan, correct and resubmit when appropriate, and dispute or appeal the denial when documentation demonstrates applicable coverage.
Can PR 27 be appealed?
Potentially. If you can demonstrate that the patient’s coverage was active for the date of service or that the denial resulted from incorrect information, follow the payer’s applicable reconsideration or appeal process.
Should you immediately bill the patient for PR 27?
No. First verify the coverage termination date, other applicable coverage, claim accuracy and the complete remittance. Then determine patient responsibility according to applicable payer, contractual, legal and practice requirements.
Stop Preventable Denials Before They Impact Revenue
A PR 27 denial code may look like a simple eligibility problem, but repeated PR-27 denials can reveal weaknesses in patient registration, insurance verification, payer selection, claim submission and follow-up.
Healthcare practices should therefore focus on more than fixing the denied claim.
Find out why it happened, and prevent the next one.
RCM First helps healthcare practices strengthen eligibility verification, billing, denial management and A/R workflows to reduce avoidable revenue leakage.
