Fast Claim Lookup & Appeal Solutions

The Medical Billing Denial Code Directory

Search official denial and adjustment codes. Get the problem description and step-by-step solution to fix and appeal every claim — instantly.

311
Codes Indexed
100%
Official Descriptions
Real-time
Instant Search
24/7
Always Available

Search the Code Directory

Filter by category or type to find the exact code you need.

Frequently Searched

CO-16Denial Code
Contractual Obligation

Claim/service lacks information or has submission/billing error(s). Usage: Do not use this code for claims attachment(s)/other documentation. At least one Remark Code must be provided (may be comprised of either the NCPDP Reject Reason Code, or Remittance Advice Remark Code that is not an ALERT.) Refer to the 835 Healthcare Policy Identification Segment (loop 2110 Service Payment Information REF), if present.

View Solution
CO-4Denial Code
Contractual Obligation

The procedure code is inconsistent with the modifier used. Usage: Refer to the 835 Healthcare Policy Identification Segment (loop 2110 Service Payment Information REF), if present.

View Solution
CO-18Denial Code
Contractual Obligation

Exact duplicate claim/service (Use only with Group Code OA except where state workers' compensation regulations requires CO)

View Solution
97Denial Code
General Adjustment

The benefit for this service is included in the payment/allowance for another service/procedure that has already been adjudicated. Usage: Refer to the 835 Healthcare Policy Identification Segment (loop 2110 Service Payment Information REF), if present.

View Solution
CO-45Adjustment Code
Contractual Obligation

Charge exceeds fee schedule/maximum allowable or contracted/legislated fee arrangement. Usage: This adjustment amount cannot equal the total service or claim charge amount; and must not duplicate provider adjustment amounts (payments and contractual reductions) that have resulted from prior payer(s) adjudication. (Use only with Group Codes PR or CO depending upon liability)

View Solution
1Adjustment Code
General Adjustment

Deductible Amount

View Solution

Quick Code Index

Browse all codes by category and group for direct access.

All Codes

1Adjustment Code
General Adjustment

Deductible Amount

View Solution
2Adjustment Code
General Adjustment

Coinsurance Amount

View Solution
3Adjustment Code
General Adjustment

Co-payment Amount

View Solution
CO-4Denial Code
Contractual Obligation

The procedure code is inconsistent with the modifier used. Usage: Refer to the 835 Healthcare Policy Identification Segment (loop 2110 Service Payment Information REF), if present.

View Solution
CO-5Denial Code
Contractual Obligation

The procedure code/type of bill is inconsistent with the place of service. Usage: Refer to the 835 Healthcare Policy Identification Segment (loop 2110 Service Payment Information REF), if present.

View Solution
6Denial Code
General Adjustment

The procedure/revenue code is inconsistent with the patient's age. Usage: Refer to the 835 Healthcare Policy Identification Segment (loop 2110 Service Payment Information REF), if present.

View Solution
7Denial Code
General Adjustment

The procedure/revenue code is inconsistent with the patient's gender. Usage: Refer to the 835 Healthcare Policy Identification Segment (loop 2110 Service Payment Information REF), if present.

View Solution
8Denial Code
General Adjustment

The procedure code is inconsistent with the provider type/specialty (taxonomy). Usage: Refer to the 835 Healthcare Policy Identification Segment (loop 2110 Service Payment Information REF), if present.

View Solution
9Denial Code
General Adjustment

The diagnosis is inconsistent with the patient's age. Usage: Refer to the 835 Healthcare Policy Identification Segment (loop 2110 Service Payment Information REF), if present.

View Solution
10Denial Code
General Adjustment

The diagnosis is inconsistent with the patient's gender. Usage: Refer to the 835 Healthcare Policy Identification Segment (loop 2110 Service Payment Information REF), if present.

View Solution
11Denial Code
General Adjustment

The diagnosis is inconsistent with the procedure. Usage: Refer to the 835 Healthcare Policy Identification Segment (loop 2110 Service Payment Information REF), if present.

View Solution
12Denial Code
General Adjustment

The diagnosis is inconsistent with the provider type. Usage: Refer to the 835 Healthcare Policy Identification Segment (loop 2110 Service Payment Information REF), if present.

View Solution

Showing 12 of 311 codes

Send Us Feedback

Found a typo, have a suggestion, or need a code added? Let us know.