title: Application of diagnostic classification algorithms to identify the most common causes of post-transplant complications.
abstract: ICD-9-CM diagnoses for hospitalizations occurring during the first 6 post-transplant months were summarized into Clinical Classifications System (CCS) categories. Of the 28,900 patients examined, 54% had at least one hospitalization. There were 2.39 hospitalizations per patient-year at risk. The total Medicare inpatient costs were $339 million and mean length of stay was 8.3 days. The most common and costly CCS diagnosis was complications of a kidney transplant followed by infections, circulatory system disease, gastrointestinal disease and endocrine complications. The CCS is a useful tool to summarize the complexity of claims information in the USRDS and could prove useful in further claims research.
authors.affiliation: SLU Center for Outcomes Research, Department of Internal Medicine, Saint Louis University School of Medicine, St. Louis, MO, USA.
authors.forename: Gerardo
authors.initials: G
authors.lastname: Machnicki
authors.forename: Brett
authors.initials: B
authors.lastname: Pinsky
authors.forename: Steven
authors.initials: S
authors.lastname: Takemoto
authors.forename: Krista
authors.initials: K
authors.lastname: Lentine
authors.forename: Lisa
authors.initials: L
authors.lastname: Willoughby
authors.forename: Suphamai
authors.initials: S
authors.lastname: Bunnapradist
authors.forename: Thomas
authors.initials: T
authors.lastname: Burroughs
authors.forename: Mark A
authors.initials: MA
authors.lastname: Schnitzler
mesh_terms: D017677:Age Distribution; D000465:Algorithms; D002423:Cause of Death; D003953:Diagnosis-Related Groups; D005006:Ethnicity; D005260:Female; D006801:Humans; D007676:Kidney Failure, Chronic / Q000209:etiology / Q000601:surgery; D016030:Kidney Transplantation / Q000009:adverse effects* / Q000706:statistics & numerical data*; D007902:Length of Stay; D008297:Male; D011183:Postoperative Complications / Q000453:epidemiology* / Q000209:etiology; D044469:Racial Groups; D012189:Retrospective Studies; D014019:Tissue Donors / Q000706:statistics & numerical data; D014184:Transplantation, Homologous; D014481:United States