title: Coding notes--coding addendum effective October 1, 1990.
authors: I
authors: I
authors: Finnegan
mesh_terms: D000043:Abstracting and Indexing; D003953:Diagnosis-Related Groups; D004194:Disease / Q000145:classification*; D006801:Humans; D008499:Medical Records / Q000145:classification*; D014481:United States