diagnosis code

Received denial from Wellcare Insurance stating ICD-9-CM Diagnisis code is invalid in Health Care Diagnosis Code.

What does it mean and where can the changes be done?

re: diagnosis code

What CPT® was billed and what diagnosis code(s)? Most likely there is an issue with a diagnosis that cannot be billed with a particular procedure.

re: diagnosis code

Agree with what was said above, or you're missing a 5th digit.