JUL 26, 2015
How to Submit Claims for Unlisted Procedures
Medicare Administrative Contractors require additional information when billing for unlisted procedures, such as 66999. To code such procedures correctly, include a brief description of the service in box 19 of your claim form or submit an attachment with your claim.
If you do not include any additional information, Medicare may deny the claim as unprocessable. Review Medicare Claims Processing Manual Chapter 26 — Completing and Processing Form CMS-1500 Data Set for more information.