Medicare Economic Index MEI Anesthesia Conversion Factors

$179 / year

This dataset contains the 2017, 2018 and 2019 Anesthesia conversion factors.


The 2017, 2018 and 2019 locality-specific anesthesia conversion factors (CFs) are calculated from the 2017 national anesthesia CF.

The purpose of this is to inform workers’ compensation system participants of the annual change to the Medical Fee Guideline conversion factors as established in 28 TAC §134.203. Under Labor Code §413.011(a), fee guidelines adopted by the Division of Workers’ Compensation (DWC) for non-network services and approved out-of-network services are based on the most current reimbursement methodologies, models, and values or weights used by the federal Centers for Medicare and Medicaid Services.

To provide predictability and reflect changes in medical service delivery costs to system participants, DWC established a conversion factor and an annual update as part of 28 TAC §134.203(c). The annual update is based on the Medicare Economic Index (MEI), which is a weighted average of price changes for goods and services used to deliver physician services. The MEI for 2019 reflects an increase of 1.4 percent.

For services provided in calendar year 2019, the new Medical Fee Guideline conversion factors are $58.31 and $73.19. The conversion factor of $58.31 applies to service categories of evaluation and management, general medicine, physical medicine and rehabilitation, radiology, pathology, anesthesia, and surgery when performed in an office setting. The conversion factor of $73.19 applies to surgery when performed in a facility setting.

As part of 28 TAC §134.203(c)(2), DWC adopted a provision that will automatically update the conversion factors each year based on the MEI. The MEI annual percentage adjustment is published each November in the Federal Register as a part of the Medicare Physician Fee Schedule update. DWC monitors the annual percentage adjustment change to the MEI, and posts the conversion factors for the subsequent year on its website in December.

Date Created


Last Modified




Update Frequency


Temporal Coverage

2018-07 to 2020-01

Spatial Coverage

United States


John Snow Labs; Centers for Medicare and Medicaid Services;

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Source License Requirements


Source Citation



ANES 2020, Anesthesia Conversion Factors 2020, ANES 2019, Anesthesia Conversion Factors 2019, ANES 2018, Anesthesia Conversion Factors 2018, ANES 2017, Anesthesia Conversion Factors 2017, Medicare Economic Index, MEI for Anesthesia

Other Titles

Physicians Fee Schedule Anesthesia Conversion Factors, ANES Conversion Factors 2019, ANES Conversion Factors 2018, ANES Conversion Factors 2017

YearYear of MEI Anesthesia Conversion (2017 to 2020)date-
ContractorCarrier Codeintegerlevel : Nominal
LocalityLocality Code.string-
Locality_NameName of the Locality.string-
Anesthesia_Conversion_FactorTypically, the Conversion Factor is updated on an annual basis. According to a formula specified by statute, the update for a year is equal to the Medicare Economic Index (MEI) adjusted up or down depending on how actual expenditures compare to a target rate called the Sustainable Growth Rate (SGR). RVUs are converted to dollar amounts through the application of a CF.numberlevel : Ratio
YearContractorLocalityLocality NameAnesthesia Conversion Factor
2017111254BAKERSFIELD, CA22.19
2017111255CHICO, CA22.19
2017118271EL CENTRO, CA22.19
2017111256FRESNO, CA22.19
2017111257HANFORD-CORCORAN, CA22.19