SuperPRO DRG validation process.
D000043:Abstracting and Indexing / Q000592:standards*; D003953:Diagnosis-Related Groups; D004194:Disease / Q000145:classification*; D006748:Hospital Departments; D006801:Humans; D008500:Medical Records Department, Hospital; D011366:Professional Review Organizations / Q000458:organization & administration*; D014481:United States