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Before the 1992 implementation of the Medicare fee schedule, physician payments were made under the "usual, customary and reasonable" payment model (a "charge-based" payment system). Physician services were largely considered to be misvalued under this system, with evaluation and management services being undervalued and procedures overvalued. [3]
The RBRVS for each CPT code is determined using three separate factors: physician work, practice expense, and malpractice expense. The average relative weights of these are: physician work (52%), practice expense (44%), malpractice expense (4%). [2] A method to determine the physician work value was the primary contribution made by the Hsiao study.
The estimated SGR to go into effect on March 1, 2010, was -8.8%, and the conversion factor for the physician fee schedule was -21.3%. [4] On March 3, 2010, Congress delayed the enforcement of the conversion factor until April 1, 2010, with the passage of the Temporary Extension Act of 2010.
Major insurers use Medicare's RVU calculations when negotiating payment schedules with providers, and many insurers simply adopt Medicare's payment schedule. The AMA-sponsored committee in charge of determining RVUs of medical procedures that inform Medicare's payment to physicians has been shown to grossly inflate their figures.
The Omnibus Budget Reconciliation Act of 1989 enacted a Medicare fee schedule, and as of 2010 about 7,000 distinct physician services were listed. [2] The services are classified under a nomenclature based on the Current Procedural Terminology (CPT) to which the American Medical Association holds intellectual property rights. [ 2 ]
As of June 2024, the file download size is 947.84 MB, and the raw database file (npidata_pfile_20050523-20240512.csv) is 9.3 GB when extracted. [7] The size of the data has been steadily growing over time. The size of the raw database file was 8.8GB in June 2023, and 8.2GB in June 2022.
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This is a list of abbreviations used in medical prescriptions, including hospital orders (the patient-directed part of which is referred to as sig codes).This list does not include abbreviations for pharmaceuticals or drug name suffixes such as CD, CR, ER, XT (See Time release technology § List of abbreviations for those).