AMA fighting turf war. Association faces challenge to its monopoly on coding system for physician services.
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D000043:Abstracting and Indexing; D000574:American Medical Association; D019937:Diagnostic Techniques and Procedures / Q000145:classification*; D004194:Disease / Q000145:classification; D008499:Medical Records / Q000145:classification*; D017150:Public Sector; D013514:Surgical Procedures, Operative / Q000145:classification*; D009626:Terminology as Topic; D014481:United States