Healthcare Error Codes Directory

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97 codes

Code	Short label	Link
AAA-42	Unable to respond at this time	View
AAA-72	Patient not found	View
AAA-75	Subscriber not found	View
AAA-79	Invalid participant ID	View
AAA-82	Invalid subscriber ID	View
CO-4	Service inconsistent with modifier	View
CO-11	Diagnosis inconsistent with procedure	View
CO-16	Claim lacks required information	View
CO-18	Duplicate claim/service	View
CO-21	Missing/invalid place of service	View
CO-22	Care may be covered by another payer	View
CO-23	Impact of prior payer adjudication	View
CO-24	Charges not covered	View
CO-26	Expenses incurred before coverage	View
CO-27	Coverage terminated	View
CO-29	Time limit expired	View
CO-31	Patient cannot be identified	View
CO-33	Insufficient documentation	View
CO-39	Services denied as experimental	View
CO-42	Charges exceed provider’s contract	View
CO-45	Charge exceeds fee schedule	View
CO-50	Non-covered services	View
CO-52	Missing provider signature	View
CO-54	Multiple physicians not allowed	View
CO-61	Procedure not covered for age	View
CO-62	Not covered for place of service	View
CO-65	Procedure code invalid	View
CO-66	Incomplete procedure code	View
CO-69	Day outlier adjustment	View
CO-96	Non-covered charge(s)	View
CO-97	Benefit not covered	View
CO-98	Charges already adjudicated	View
CO-109	Claim not covered by this payer	View
CO-119	Benefit maximum reached	View
CO-125	Submission/billing error	View
CO-128	Invalid billing modifier	View
CO-131	Claim-specific negotiated discount	View
CO-133	Incorrect provider type	View
CO-141	Claim adjusted by payer	View
CO-151	Payment adjusted due to contractual agreement	View
CO-167	No authorization on file	View
CO-170	Payment adjusted due to referral absence	View
CO-178	Claim did not contain sufficient information	View
CO-197	Precertification required	View
CO-198	Preauthorization missing	View
CO-200	Non-covered service	View
CO-204	Service not covered under plan	View
M15	Separately billed services	View
M20	Missing/incomplete data	View
M51	Missing/incomplete provider information	View
M59	Incomplete claim	View
M62	Service not medically necessary	View
M114	Missing diagnosis	View
M130	Missing prior authorization	View
M137	Incomplete documentation	View
M153	Invalid billing	View
M170	Missing data	View
M176	Service excluded	View
M184	Incorrect patient	View
M196	Claim error	View
M204	Coverage issue	View
M212	Incomplete submission	View
M222	Authorization issue	View
M251	Billing discrepancy	View
M263	Coding error	View
M279	Claim rejected	View
M303	Administrative denial	View
N20	Service not payable	View
N30	Patient responsibility applies	View
N94	Processed in excess of charges	View
N95	Benefits adjusted	View
N130	Consult plan benefit documents	View
N151	Missing documentation	View
N152	Payment reduced	View
N153	Adjustment based on coverage	View
N155	Service not reimbursable	View
N160	Policy documentation needed	View
N164	Missing data	View
N188	Review needed	View
N216	Missing authorization	View
N240	Incomplete claim	View
N272	Coordination of benefits issue	View
N286	Missing/incomplete documentation	View
N290	Missing/incomplete provider identifier	View
N345	Inconsistent information	View
N347	Billing error	View
N362	Claim adjustment due to incorrect billing	View
N382	Incorrect provider	View
N386	Billing error	View
N429	Claim denied	View
N432	Missing/incomplete information	View
N503	Incorrect billing	View
PR-1	Deductible amount	View
PR-2	Coinsurance	View
PR-3	Copayment	View
PR-96	Non-covered charge(s)	View
PR-204	Service not covered under patient plan	View