Anesthesia Conversion Factors - JF Part B
Anesthesia Conversion Factors
The Medicare approved amount for anesthesia service is calculated using the conversion factor for each calendar year listed below: (Anesthesia Base Units + Billed Minutes Divided by 15) x Conversion Factor = Allowed amount.
CMS website provides links to the anesthesia base units and regulations: Anesthesiologists Center
CMS Internet-Only Manual (IOM), Publication 100-04, Medicare Claims Processing Manual, Chapter 12, Section 50, provides anesthesia billing and payment information.
2023
CMS released the following anesthesia conversion factors that are effective for dates of service January 1, 2023 through December 31, 2023.
| State | Locality | Par | Non-Par | Limiting Charge |
|---|---|---|---|---|
| Alaska | Alaska | $29.14 | $27.68 | $31.84 |
| Arizona | Arizona | $20.81 | $19.77 | $22.73 |
| Idaho | Idaho | $19.53 | $18.55 | $21.34 |
| Montana | Montana | $20.58 | $19.55 | $22.48 |
| North Dakota | North Dakota | $20.44 | $19.42 | $22.33 |
| Oregon | Oregon - Area 01 - Portland | $21.20 | $20.14 | $23.16 |
| Oregon | Oregon - Area 99 - Rest of Oregon | $20.47 | $19.45 | $22.36 |
| South Dakota | South Dakota | $20.29 | $19.28 | $22.17 |
| Utah | Utah | $20.69 | $19.66 | $22.60 |
| Washington | Washington - Area 02 - Seattle (King County) | $22.23 | $21.12 | $24.29 |
| Washington | Washington - Area 99 - Rest of Washington | $20.97 | $19.92 | $22.91 |
| Wyoming | Wyoming | $20.85 | $19.81 | $22.78 |
2022
The CY 2022 Anesthesia Conversion Factor fees have been updated due to the Protecting Medicare and American Farmers from Sequestor Cuts Act. The fees are valid for dates of service January 1, 2022 - December 31, 2022.
| State | Locality | Par | Non-Par | Limiting Charge |
|---|---|---|---|---|
| Alaska | Alaska | $29.81 | $28.32 | $32.57 |
| Arizona | Arizona | $21.20 | $20.14 | $23.16 |
| Idaho | Idaho | $20.34 | $19.32 | $22.22 |
| Montana | Montana | $21.53 | $20.45 | $23.52 |
| North Dakota | North Dakota | $20.79 | $19.75 | $22.71 |
| Oregon | Oregon - Area 01 - Portland | $21.52 | $20.44 | $23.51 |
| Oregon | Oregon - Area 99 - Rest of Oregon | $20.75 | $19.71 | $22.67 |
| South Dakota | South Dakota | $20.68 | $19.65 | $22.59 |
| Utah | Utah | $21.01 | $19.96 | $22.95 |
| Washington | Washington - Area 02 - Seattle (King County) | $22.53 | $21.40 | $24.61 |
| Washington | Washington - Area 99 - Rest of Washington | $21.26 | $20.20 | $23.23 |
| Wyoming | Wyoming | $21.35 | $20.28 | $23.32 |
2021
CMS released the following anesthesia conversion factors that are effective for dates of service January 1, 2021 through December 31, 2021.
| State | Locality | Par | Non-Par | Limiting Charge |
|---|---|---|---|---|
| Alaska | Alaska | $29.88 | $28.39 | $32.64 |
| Arizona | Arizona | $21.21 | $20.15 | $23.17 |
| Idaho | Idaho | $20.38 | $19.36 | $22.27 |
| Montana | Montana | $21.53 | $20.45 | $23.52 |
| North Dakota | North Dakota | $20.81 | $19.77 | $22.73 |
| Oregon | Oregon - Area 01 - Portland | $21.53 | $20.45 | $23.52 |
| Oregon | Oregon - Area 99 - Rest of Oregon | $20.77 | $19.73 | $22.69 |
| South Dakota | South Dakota | $20.70 | $19.67 | $22.61 |
| Utah | Utah | $21.02 | $19.97 | $22.96 |
| Washington | Washington - Area 02 - Seattle (King County) | $22.53 | $21.40 | $24.61 |
| Washington | Washington - Area 99 - Rest of Washington | $21.27 | $20.21 | $23.24 |
| Wyoming | Wyoming | $21.35 | $20.28 | $23.32 |
Resource
- CMS Anesthesiologists Center - View anesthesia conversion factors.
Last Updated Wed, 27 Sep 2023 17:27:29 +0000