Billing and Coding: Independent Diagnostic Testing Facility (IDTF)

This policy covers billing/coding for Independent Diagnostic Testing Facilities (IDTFs), requiring IDTFs to list exact CPT/HCPCS codes and equipment on CMS‑855B (Attachment 2, Section 1) and noting that claims for codes not listed will be denied and each IDTF has a specific payable code list. Key requirements: supervising physician and technician qualifications must be met at enrollment, new applications receive desk and mandatory site reviews, amendments to CMS‑855B are needed to add similar tests (no new site visit) while adding different procedure types or supervision levels requires a new site visit and contractor approval to bill.