CARC 229 Active

OA-229: Partial Charge Not Considered Due to Type of Bill 12X

TL;DR

Partial charges were not processed during COB. Adjust and resubmit.

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-229 Mean?

With OA, the partial charge issue appeared during coordination of benefits.

CARC 229 is specific to institutional claims and indicates that the payer cannot process partial charges on a claim submitted with type of bill 12X (interim billing for an ongoing inpatient stay). Interim bills represent charges for a continuing admission, and the payer's system does not calculate partial amounts on these bill types — it processes them as full interim periods.

This typically occurs when the provider submits an interim claim that includes a partial day or period that the payer's processing logic does not accommodate for this bill type.

How to Resolve

  1. Adjust the claim Correct the billing period or type of bill.
  2. Resubmit Process through the COB sequence.
Do Not Appeal This Code

Partial Charge Not Considered Due to Type of Bill 12X 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.

How to Prevent OA-229

Also Filed As

The same CARC 229 may appear with different Group Codes:

PR-229 CO-229

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://portal.ct.gov/-/media/ohs/health-it-advisory-council/apcd-advisory-group/data-submission-guide-workgroup/meeting-materials/6-30-22/carc-codes_final.pdf
  3. https://www.aapc.com/resources/claim-adjustment-reason-codes
  4. Codes maintained by X12. Visit x12.org for official definitions.