CARC 229 Active

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

TL;DR

Adjust the claim to match interim billing requirements and resubmit.

Action
Review & Decide
Who Pays
Provider
Appeal
No
Patient Impact
None
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 CO-229 Mean?

With CO, the partial charge issue is a billing matter. Adjust the claim per the payer's interim billing requirements.

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 Modify the billing period or type of bill.
  2. Resubmit Submit the corrected claim.
Do Not Appeal This Code

Partial Charge Not Considered Due to Type of Bill 12X recorded under CO is a contractual obligation — the provider absorbs this amount per the payer agreement. Without an error in how the contract was applied, appeals don't apply. Review the accompanying RARC codes for context and accept the adjustment when the contract terms were applied correctly.

How to Prevent CO-229

Also Filed As

The same CARC 229 may appear with different Group Codes:

PR-229 OA-229

Related Denial Codes

CO-3 — Co-payment Amount CO-85 — Patient Interest Adjustment CO-100 — Payment Made to Patient/Insured CO-101 — Predetermination: Anticipated Payment CO-105 — Tax Withholding Amount

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.