Anesthesiologists Center

Billing / Payment

• 2017 Anesthesia Conversion Factors [ZIP, 19KB]  - These are the anesthesia conversion factors used to compute allowable amounts for anesthesia services under CPT codes 00100 to 01999.
  • The anesthesia base units are unchanged for 2017.
• 2016 Anesthesia Conversion Factors [ZIP, 17KB] - These are the anesthesia conversion factors used to compute allowable amounts for anesthesia services under CPT codes 00100 to 01999.
  • The anesthesia base units are unchanged for 2016.
• 2015 Anesthesia Conversion Factors (July 1- Dec 31) [ZIP, 11KB] - These are the anesthesia conversion factors used to compute allowable amounts for anesthesia services under CPT codes 00100 to 01999.
  • The anesthesia base units are unchanged for 2015.
• 2015 Anesthesia Conversion Factors (Jan 1 – June 30) [ZIP, 16KB] - These are the anesthesia conversion factors used to compute allowable amounts for anesthesia services under CPT codes 00100 to 01999. (Updated 1/6/2015)
  • The anesthesia base units are unchanged for 2015.
• 2014 Anesthesia Conversion Factors [ZIP, 10KB] - These are the anesthesia conversion factors used to compute allowable amounts for anesthesia services under CPT codes 00100 to 01999. (Updated 1/3/2014)
• 2014 Anesthesia Base Units by CPT Code [ZIP, 13KB] - These are the anesthesia base units used to compute allowable amounts for anesthesia services under CPT codes 00100 to 01999.
• 2013 Anesthesia Conversion Factors [ZIP, 11KB] - These are the anesthesia conversion factors used to compute allowable amounts for anesthesia services under CPT codes 00100 to 01999. (Updated 12/31/2012)
• 2013 Anesthesia Base Units by CPT Code [ZIP, 13KB] - These are the anesthesia base units used to compute allowable amounts for anesthesia services under CPT codes 00100 to 01999.
• 2012 Anesthesia Conversion Factor 0% Update [ZIP, 14KB] - These are the anesthesia conversion factors used to compute allowable amounts for anesthesia services under CPT codes 00100 to 01999. (Updated 3/1/12)
• 2012 Anesthesia Base Units by CPT Code [ZIP, 18KB]  These are the anesthesia base units used to compute allowable amounts for anesthesia services under CPT codes 00100 to 01999.
• 2011 Anesthesia Base Units by CPT Code [ZIP, 18KB] These are the anesthesia base units used to compute allowable amounts for anesthesia services under CPT codes 00100 to 01999.
• 2011 Anesthesia Conversion Factor [ZIP, 16KB] These are the anesthesia conversion factors used to compute allowable amounts for anesthesia services under CPT codes 00100 to 01999 (updated 4/2/12).
• 2010 Anesthesia Base Units by CPT Code [ZIP, 18KB] These are the anesthesia base units used to compute allowable amounts for anesthesia services under CPT codes 00100 to 01999.
• 2010 Anesthesia Conversion Factor 0% update and 2010 Anesthesia Conversion Factor 2.2% update . These are the anesthesia conversion factors used to compute allowable amounts for anesthesia services under CPT codes 00100 to 01999. - cannot link dynamic list details
• 2009 Anesthesia Base Units by CPT Code [ZIP, 8KB] These are the anesthesia base units used to compute allowable amounts for anesthesia services under CPT codes 00100 to 01999.
• 2009 Anesthesia Conversion Factor [ZIP, 9KB] These are the anesthesia conversion factors used to compute allowable amounts for anesthesia services under CPT codes 00100 to 01999.

Participation

• Title 42 - Public Health, Chapter IV CMS/DHHS: Conditions of Participation - Part 482.52 - Anesthesia Services - Opens in a new window
• Appendix A of the State Operations Manual, pages 31-35 [PDF, 2MB]  - Anesthesia Services -- Appendix A (482.52)
•   Part 410.69 - Opens in a new window  Services of a certified registered nurse anesthetist or an anesthesiologist's assistant: Basic rule and definitions.
• Pharmaceutical Services - 482.25 - Opens in a new window  (Title 42 - Public Health, Chapter IV CMS/DHHS)
• Fourteen states have chosen to opt-out of the CRNA physician supervision regulation -- See Spotlight  in the Spotlight for those states.

CMS Manuals & Transmittals

• Medicare Claims Processing Manual
• Payment for Anesthesiology Services Chapter 12 - Physicians/Nonphysician Practitioners [PDF, 1014KB]   (See Sub-Section K - Anesthesia Claims Claims Modifiers)  contains the amount physicians and other providers will receive when providing services to a Medicare beneficiary
• Transmittals
• National Correct Coding Initiative Edits - Column 1/Column 2 Correct Coding Edits & Mutually Exclusive Correct Coding Edits Anesthesia Services (1/1/08-3/31/08) CPT Codes 00100-00999   CPT Codes 01000-09999

Issues on Anesthesia

• Physician Regulatory Issues Team (PRIT)

Educational Resources

• MLN General Information
• MLN Matters Articles
• MLN Multimedia
• MLN Publications

Contacts

• CMS Regional Offices

How to Stay Informed

• Subscribe now to receive the weekly MLN Connects Provider eNews for the latest Fee-For-Service program information, event announcements, claims and pricer information, and MLN educational product updates.

• Physicians, Nurses and Allied Health Professionals Open Door Forum
• Press Releases - Opens in a new window : CMS Media Release Search

Helpful Links

• American Society of Anesthesiologists - Opens in a new window
• American Association of Nurse Anesthetists (AANA) - Opens in a new window
• Related Organizations - Opens in a new window