Denial Code 142 (CO-142, PR-142) — Meaning & What to Do
Claim Adjustment Reason Code (CARC)
What denial code 142 means: The claim was adjusted under a monthly Medicaid patient-liability rule.
What to do about denial code 142: Ask the provider's billing office to explain or correct this, and resubmit if needed.
CO-142 vs PR-142 vs OA-142: what the prefix means
| Code on your EOB | What the prefix means | Who typically pays |
|---|---|---|
| CO-142 | Contractual obligation — the provider writes the amount off | Usually not the patient |
| PR-142 | Patient responsibility | The patient |
| OA-142 | Other adjustment | Often another payer or plan |
The prefix tells you who is expected to absorb the amount; the number (142) tells you why.
Seeing denial code 142 on your EOB?
A denial code tells you what the payer reported, but it may not tell the whole story. Reviewing your EOB and bill together can help clarify what may need attention.
Related codes
CARC 140The patient/insured health-ID number and name don't match.
CARC 146The diagnosis was invalid for the date(s) of service.
CARC 139Contracted funding limits for this service have been reached.
CARC 147The provider's contracted fee for this service was applied.
Keep reviewing your bill
- Medical Bill vs EOB: What Is the Difference?
- How to Dispute a Medical Bill — Find Billing Errors Before You Pay
- What Is an Itemized Medical Bill? How to Request One
Frequently asked questions about Denial code 142
What does denial code 142 mean on my EOB?
The claim was adjusted under a monthly Medicaid patient-liability rule.
What should I do about denial code 142?
Ask the provider's billing office to explain or correct this, and resubmit if needed.
Seeing this code on your own EOB?
Upload the EOB, the bill, or both — MD Bill Check reads the codes on your documents, compares them side by side, and flags what's worth questioning. Free, no account needed.