title: Adapting a clinical comorbidity index for use with ICD-9-CM administrative data: differing perspectives.
authors.affiliation: Department of Medicine, University of California, Davis School of Medicine, Sacramento 95817.
authors.forename: P S
authors.initials: PS
authors.lastname: Romano
authors.forename: L L
authors.initials: LL
authors.lastname: Roos
authors.forename: J G
authors.initials: JG
authors.lastname: Jollis
mesh_terms: D000208:Acute Disease; D002908:Chronic Disease; D015897:Comorbidity; D016208:Databases, Factual; D004194:Disease / Q000145:classification*; D006302:Health Services Research; D006801:Humans; D016015:Logistic Models; D015233:Models, Statistical; D009026:Mortality; D017063:Outcome Assessment, Health Care; D011379:Prognosis; D016016:Proportional Hazards Models; D012307:Risk Factors; D012720:Severity of Illness Index; D013514:Surgical Procedures, Operative; D014481:United States