Table 2.

Discharge diagnoses and procedures according to ICD-9-CM codes at three Boston-area teaching hospitals in 2004a

BWH(n = 42,609)MGH(n = 42,119)CSEMC(n = 14,901)Combined(n = 99,629)
ARF (%)3.45.04.24.2
ARF-D (%)0.30.50.40.4
Maintenance hemodialysis (%)1.71.91.51.7
Maintenance peritoneal dialysis (%)0.10.20.00.1
Chronic kidney disease (%)1.01.00.92.0
Kidney transplantation (%)0.20.20.00.1
  • a ARF, acute renal failure; ARF-D, acute renal failure that requires dialysis; ICD-9-CM, International Classification of Diseases, Ninth Revision, Clinical Modification.\