What is the purpose of FL 63 on the UB-04 form?

• A. Treatment Authorization Codes used for services requiring authorization.
• B. Employer Name of the coverage provider.
• C. Document Control Number for resends.
• D. ICD-10-CM version indicator.

Answer: (A)

Field 63 holds Treatment Authorization Codes, which are used when a service or procedure requires prior authorization. These codes come from the payer and indicate that an authorization (pre-approval) has been obtained for the billed services, helping the payer match the claim to the approved treatment and pay accordingly. If no authorization is needed, this field is usually left blank.

The other items described in the choices aren’t what this field captures: the employer name is not entered here, since it isn’t an authorization code; a document control number for resubmissions belongs to different resubmission or tracking fields; and the ICD-10-CM version indicator is handled elsewhere, not as a treatment authorization code.