title: Ambulatory visit groups: an outpatient classification system.
mesh_terms: D000553:Ambulatory Care / Q000145:classification*; D014487:Centers for Medicare and Medicaid Services, U.S.; D003237:Connecticut; D003953:Diagnosis-Related Groups / Q000145:classification*; D006801:Humans; D009369:Neoplasms; D010372:Pediatrics; D010865:Pilot Projects; D011570:Psychiatry; D014481:United States