Use of 9-Digit ZIP codes for Determining the Correct Payment Locality for Services Paid Under the Medicare Physician Fee Schedule (MPFS) and Anesthesia Services
Medicare contractors will require the submission of 9-digit ZIP codes for services paid under the MPFS and anesthesia services when provided in a ZIP code area that falls into more
than one payment locality. All carriers, fiscal intermediaries, and their standard systems will require changes to accept a revised ZIP code file layout.
Issued by: Centers for Medicare & Medicaid Services (CMS)
Issue Date: March 09, 2007
DISCLAIMER: The contents of this database lack the force and effect of law, except as authorized by law (including Medicare Advantage Rate Announcements and Advance Notices) or as specifically incorporated into a contract. The Department may not cite, use, or rely on any guidance that is not posted on the guidance repository, except to establish historical facts.