OA-153: Information Does Not Support Dosage

What Does OA-153 Mean?

When paired with Group Code OA, CARC 153 (Information Does Not Support Dosage) is processed as an adjustment outside the standard CO/PR classifications. This typically occurs in secondary payer or coordination of benefits scenarios. Review the remittance details and the COB arrangement to determine financial responsibility and appropriate next steps.

CARC 153 indicates information does not support dosage. The payer determined that the service or a portion of it does not meet coverage criteria under the patient's current plan benefits or the applicable coverage rules.

Common scenarios that trigger this adjustment include: the billed medication dosage exceeds the payer's maximum allowed dosage based on FDA labeling, clinical guidelines, or the payer's drug utilization review criteria; The clinical documentation does not adequately support the medical necessity for a dosage that exceeds standard guidelines or the payer's approved dosing parameters; The claim was submitted with incorrect units, quantities, or dosage amounts that do not match the actual medication administered. The group code paired with CARC 153 determines who bears the financial responsibility — CO places it on the provider as a contractual obligation, OA indicates a coordination of benefits or other payer adjustment, PR shifts it to the patient.

How to Resolve

1. Review the coordination of benefits Examine the OA-153 adjustment to understand how it fits within the primary/secondary payer relationship or other multi-payer context.
2. Verify primary payer adjudication Review the primary payer's EOB to understand the basis for the secondary payer's OA adjustment.
3. Determine the responsible party Based on the COB review, identify whether the adjustment should be absorbed, billed to another payer, or if additional documentation is needed.
4. Appeal or resubmit if needed If the OA adjustment appears incorrect based on the COB arrangement, submit an appeal or corrected claim with the appropriate documentation.
5. Follow up Monitor the claim status and take additional action as needed based on the COB determination.

How to Prevent OA-153

• Maintain accurate coordination of benefits information
• Verify secondary payer requirements before claim submission

Also Filed As

The same CARC 153 may appear with different Group Codes:

Related Denial Codes