CO 26 Denial Code – Expenses incurred prior to coverage: Payers will deny the claims with CO 26 Denial Code

Insurance will deny with CO 4 Denial Code – The procedure code is inconsistent with the modifier used or a

As we know when the claims submitted to secondary insurance for balance, secondary insurance will process and allow the claim

CO 20 Denial Code – This injury/illness is covered by the liability carrier: Insurance will deny the claim with CO

Insurance company will deny the claim with CO 19 denial code – This is a work related injury/illness and thus

Insurance will be denying the claim as CO 17 Denial Code – Requested information was not provided or was insufficient/incomplete,

If the services billed require authorization, then insurance will deny the claim with CO 15 denial code – The authorization

CO 13 Denial Code – The date of death precedes the date of service. Insurance will deny the claim with

CO 9 Denial Code – The diagnosis code is inconsistent with the patient’s age: Insurance will deny the claim with

When the claim denied as CO 7 Denial Code – The Procedure/revenue code is inconsistent with the patient’s gender means

When the claim says CO 6 Denial Code – The Procedure/revenue code is inconsistent with the patient’s age, it means

Insurances Company will be denying the claim with CO 5 Denial Code – Procedure code/Bill Type is inconsistent with the

When the insurance process the claim towards PR 1 denial code – Deductible amount, it means they have processed and

Denial Codes in Medical Billing – Lists: CO – Contractual Obligations OA – Other Adjsutments PI – Payer Initiated reductions