CARC B15 Active

OA-B15: Qualifying Service/Procedure Not Received or Covered

TL;DR

A required qualifying service or prerequisite procedure was not received or not covered before this service was performed. Verify the qualifying service was completed and adjudicated, then resubmit or appeal.

Action
Review & Decide
Who Pays
Depends
Appeal
No
Patient Impact
Indirect
Disclaimer
This content is for informational purposes only and does not constitute professional billing advice. Always verify information against your payer contracts and current coding guidelines. Consult a certified billing specialist for specific claim issues.

What Does OA-B15 Mean?

CARC B15 indicates the payer denied the claim because a required prerequisite service was not completed, not adjudicated, or not covered before the current service was performed. Many procedures and services require a qualifying prior step — such as a screening before a diagnostic test, an initial evaluation before a treatment series, a diagnostic test before a procedure, or a conservative treatment trial before surgery (step therapy).

The denial may occur because the qualifying service was never performed, it was performed but not yet processed by the payer, it was denied by the payer, step therapy requirements were not followed, or documentation of the qualifying service was not submitted.

Resolution typically involves locating evidence that the qualifying service was completed, ensuring it has been adjudicated by the payer, and resubmitting the dependent service claim. If the qualifying service was performed by another provider, obtaining records from that provider may be necessary.

How to Resolve

Verify the qualifying service was completed and adjudicated, then resubmit with documentation linking both services.

  1. Identify the required qualifying service Determine what prerequisite service the payer requires before the billed service is covered.
  2. Verify qualifying service was completed Confirm the qualifying service was performed, documented, and billed.
  3. Check adjudication status Verify the qualifying service claim was adjudicated and paid by the payer.
  4. Submit documentation If the qualifying service was completed but the payer does not have a record, submit documentation linking the two services (claim number, date, results).
  5. Resubmit the dependent claim Once the qualifying service is confirmed as adjudicated, resubmit the dependent service claim.
Do Not Appeal This Code

Qualifying Service/Procedure Not Received or Covered grouped under OA is an Other Adjustment that doesn't fall into the standard contractual write-off or patient responsibility categories. Whether action is needed depends on the specific reason — review any accompanying RARC codes and payer guidance to decide whether this is a final adjustment to accept or an issue to resolve through resubmission.

Also Filed As

The same CARC B15 may appear with different Group Codes:

CO-B15 PR-B15

Related Denial Codes

OA-74 — Indirect Medical Education Adjustment OA-75 — Direct Medical Education Adjustment OA-76 — Disproportionate Share Adjustment OA-85 — Patient Interest Adjustment OA-89 — Professional Fees Removed from Charges

Sources

  1. https://x12.org/codes/claim-adjustment-reason-codes
  2. https://www.mdclarity.com/denial-code/b15
  3. https://www.cms.gov/regulations-and-guidance/guidance/manuals
  4. Codes maintained by X12. Visit x12.org for official definitions.