PR-238: Ineligible Coverage Period Reduction

What Does PR-238 Mean?

PR-238 is the only valid group code for this adjustment. The charges for the ineligible coverage period are the patient's direct financial responsibility. The payer has already processed the eligible portion of the claim, and this adjustment represents only the ineligible period reduction.

CARC 238 is a coverage period adjustment. The payer has identified that the claim's dates of service span across both an eligible (covered) period and an ineligible (uncovered) period. Rather than rejecting the entire claim, the payer processes the eligible portion and reduces payment for the dates falling within the ineligible period. The reduction amount is assigned to the patient under Group Code PR.

This typically occurs when a patient's insurance coverage starts or ends mid-treatment, when there is a gap in coverage due to premium non-payment, or when coverage is retroactively terminated to a date that falls within the claim's service period. It is most commonly seen on institutional claims for multi-day stays (inpatient admissions, skilled nursing, long-term care) where the admission spans across a coverage boundary.

CARC 238 is distinct from CARC 239 (which tells you to rebill as separate claims). With 238, the payer has already done the splitting — they paid the eligible portion and reduced for the ineligible portion. The ineligible amount is the patient's responsibility.

Common Causes

How to Resolve

Verify the patient's eligibility dates against the claim, confirm whether the ineligible period reduction is correct, and either bill the patient or appeal with proof of coverage.

1. Confirm the ineligible period dates Verify with the payer exactly which dates of service fall in the ineligible period and the amount assigned to the patient.
2. Check for other coverage Determine if the patient had other insurance active during the ineligible period (prior plan, spouse's plan, COBRA, Marketplace). If so, submit the ineligible charges to that payer.
3. Bill the patient or appeal If no other coverage exists and the dates are correctly identified as ineligible, bill the patient. If coverage was actually active, appeal with enrollment documentation.

Common RARC Pairings

The RARC code tells you exactly what triggered the PR-238:

How to Prevent PR-238

• Verify patient eligibility for the full span of service dates before submitting claims, especially for multi-day stays
• Implement real-time eligibility checking at admission and periodically during long stays
• Submit claims promptly to reduce the chance of spanning a coverage termination date
• Set up billing system alerts that flag claims with dates spanning eligibility boundary dates
• Communicate with patients about any coverage changes identified during their course of treatment

General Prevention

• Verify patient eligibility for the entire span of service dates before submitting claims, especially for institutional or multi-day services
• Implement real-time eligibility checking at registration and before each encounter to catch coverage changes early
• Submit claims promptly to reduce the risk of the claim spanning a coverage termination date
• Communicate with patients about their coverage status and notify them immediately if a coverage gap is identified during their course of treatment
• Set up automated alerts in billing systems to flag claims that span eligibility boundary dates

Related Denial Codes