OA-49: Routine/Preventive Exam Not Covered

What Does OA-49 Mean?

OA-49 appears in coordination of benefits situations where preventive care coverage differs between the primary and secondary plans. The primary plan may deny the preventive service, and the OA designation indicates the balance should be evaluated by the secondary payer under their own preventive care benefit provisions.

When CARC 49 appears on a remittance, the payer is telling you that the billed service falls into the routine or preventive category and is not covered — either because the plan excludes preventive benefits entirely, the service exceeds the plan's frequency limit, or a diagnostic component was not properly separated from the preventive visit in the coding.

This denial sits at a critical intersection of coding accuracy and benefit design. Under the ACA, most non-grandfathered health plans must cover USPSTF A and B recommended preventive services without cost-sharing when delivered by an in-network provider. If a payer denies a qualifying preventive service, the denial may be incorrect and appealable. However, grandfathered plans, short-term limited-duration plans, and some self-funded plans are exempt from these mandates and can legitimately deny preventive services.

One of the most common coding problems driving CARC 49 is the failure to separate diagnostic evaluations from preventive visits. When a patient presents for an annual physical and the physician identifies a new medical issue during the exam, the diagnostic workup should be billed separately from the preventive visit using modifier 25 and a medical-necessity diagnosis code. If the entire encounter is billed under a preventive code, the diagnostic portion gets swept into the CARC 49 denial. Proper use of modifiers and distinct diagnosis coding eliminates this preventable revenue loss.

How to Resolve

Determine whether the denial is a coding issue, a legitimate plan exclusion, or an incorrect application of ACA preventive care rules — then recode, appeal, or bill the patient accordingly.

1. Submit to the secondary payer File the remaining balance with the secondary payer, including the primary ERA. The secondary payer will determine coverage under their own preventive care benefit.
2. Process the secondary adjudication When the secondary payer responds, post the payment or adjustment. Any remaining balance after all payers adjudicate becomes the patient's responsibility.

Common RARC Pairings

The RARC code tells you exactly what triggered the OA-49:

How to Prevent OA-49

• Verify preventive care benefits with both primary and secondary payers during eligibility checks
• Set up automated secondary claim filing triggered by OA adjustments on primary remittances

Also Filed As

The same CARC 49 may appear with different Group Codes:

Related Denial Codes