Anesthesia and Pain Management
Published 03/08/2021
                            Access CMS-level guidance for anesthesia services through the following links.
- CMS Anesthesiologists Center
	
- Includes a spreadsheet of base units by CPT code and current year Anesthesia Conversion Factor
 
 - CMS Medicare Claims Processing Manual (Pub. 100-04), Chapter 12 (PDF, 1.1 MB)
	
- Definitions of personally performed, medically directed and medically supervised: section 50
 - Definition of concurrent procedures: section 50.C
 - Anesthesia claims modifiers: section 50.I
 - Anesthesia and Teaching Facilities: section 100.1.2.A.4
 - Qualified Nonphysician Anesthetists Services (CRNAs and AAs): section 140
 - Billing Modifiers for qualified nonphysician anesthetists: section 140.3.3