Question

Where does SOF (Signature on File) get entered for the patient?

A) Box 24A
B) Box 13
C) Box 31
D) Box 33

Answer 1

SOF (Signature on File) is entered in Box 13 on the CMS-1500 form.

Step-by-step explanation:

The answer to the question is Box 13.

SOF (Signature on File) is entered in Box 13 on the CMS-1500 form. Box 13 is used to indicate the signature on file for the patient, which is an agreement between the patient and the healthcare provider that allows the provider to bill Medicare or other insurance companies for services provided.