HHS paragraph 13.1 - Medicare Policies (Rev. 71, 04-09-04)
“The National Coverage Determinations (NCDs) are developed by CMS to describe the circumstances for Medicare coverage nationwide for a specific medical service procedure or device. NCDs generally outline the conditions for which a service is considered to be covered (or not covered) under §1862(a)(1) of the Act or other applicable provisions of the Act. NCDs are usually issued as a program instruction. Once published in a CMS program instruction, an NCD is binding on all Medicare carriers/DMERCS, FIs, Quality Improvement Organizations (QIOs, formerly known as Peer Review Organizations or PROs), Program Safeguard Contractors (PSCs) and beginning 10/1/01 are binding for Medicare+Choice organizations.”