Invalid Diagnosis Code References (RC66)

Rejection: Claim Contains Invalid Diagnosis Code References in Line Items (RC66)

What happened: One of the line items does not?a valid letter?for the diagnosis code pointer in box 24e on the inbound file.

Resolution: Verify all of the diagnosis code values in box 24e and update the claim as necessary.

** This box can contain ONLY letters, no special characters. If more than 1 letter will be used, send next to each other, ex: AB (referring to diagnosis codes?A and B).