CMS 1500 FORM Field 12 - Patient’s or Authorized Person’s Signature

Field 12 - Patient’s or Authorized Person’s Signature


The “Patient’s or Authorized Person’s Signature” indicates there is an authorization on file for the release of any medical or other information necessary to process and/or adjudicate the claim.

NUCC INSTRUCTIONS: Enter “Signature on File,” “SOF,” or legal signature. When legal signature, enter date signed in 6-digit (MM|DD|YY) or 8-digit format (MM|DD|YYYY) format. If there is no signature on file, leave blank or enter “No Signature on File.”

MEDICARE INSTRUCTIONS - The patient or authorized representative must sign and enter either a 6-digit date (MM | DD | YY), 8-digit date (MM | DD | CCYY), or an alpha-numeric date (e.g., January 1, 1998) unless the signature is on file. In lieu of signing the claim, the patient may sign a statement to be retained in the provider, physician, or supplier file in accordance with Chapter 1, “General Billing Requirements.” If the patient is physically or mentally unable to sign, a representative specified in chapter 1, may sign on the patient's behalf. In this event, the statement's signature line must indicate the patient's name followed by “by” the representative's name, relationship to the patient, and the reason the patient cannot sign. The authorization is effective indefinitely unless the patient or the patient's representative revokes this arrangement.

NOTE: This can be "Signature on File" and/or a computer generated signature.

The patient's signature authorizes release of medical information necessary to process the claim. It also authorizes payment of benefits to the provider of service or supplier when the provider of service or supplier accepts assignment on the claim.

Signature by Mark (X) - When an illiterate or physically handicapped enrollee signs by mark, a witness must enter his/her name and address next to the mark.

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