OA-60: Outpatient Services Not Covered Near Inpatient Stay

What Does OA-60 Mean?

OA 60 is an informational adjustment documenting how the outpatient charges were bundled into the inpatient payment. This shows the adjustment amount for transparency but does not assign specific financial responsibility. It is the payer's way of explaining that the outpatient services were already accounted for in the inpatient reimbursement.

CARC 60 fires when a payer determines that outpatient services billed separately should have been bundled into an inpatient payment because they fall within the payer's defined timeframe before or after an inpatient admission. This is a bundling denial, not a coding error or coverage exclusion. The payer is saying these outpatient charges are already accounted for in the DRG or per-diem inpatient payment.

Medicare's 72-hour rule (also called the 3-day payment window) is the most well-known version of this policy. For hospitals subject to IPPS (Inpatient Prospective Payment System), diagnostic services and other outpatient services provided within 72 hours before a Medicare inpatient admission are bundled into the DRG payment. The window extends to 24 hours before admission for hospitals not subject to IPPS. Commercial payers have their own bundling windows that may be more or less restrictive.

The key exception is when the outpatient services are for a condition entirely unrelated to the inpatient admission. If a patient comes to the emergency department for a broken arm on Monday and is then admitted on Thursday for a scheduled cardiac procedure, the ED visit should not be bundled into the cardiac DRG. Documenting this clinical distinction is the basis for a successful appeal. Pre-admission testing that directly relates to the planned admission, however, is appropriately bundled and should not be billed separately.

Common Causes

How to Resolve

Determine whether the outpatient services legitimately fall within the bundling window or are for an unrelated condition, then either bundle them into the inpatient claim or appeal with clinical documentation.

1. Verify the adjustment amount Cross-reference the OA 60 adjustment against the outpatient charges to confirm the bundled amount is correct.
2. Request reprocessing if incorrect If the adjustment does not match expected amounts, contact the payer for clarification and provide supporting documentation.

How to Prevent OA-60

• Monitor OA 60 adjustments to verify bundling calculations are consistent across claims.
• Maintain accurate inpatient and outpatient claim coordination to prevent discrepancies.

Also Filed As

The same CARC 60 may appear with different Group Codes:

Related Denial Codes