Chronic kidney disease was defined according to usual definitions [19] and reported in the dataset by investigator using ICD-10 code (N18-N18, N18.0, N18.8, N18.9, I12.0, N11-N11, N11.0, N11.1, N11.8, N11.9, N03-NO3, N03.0, N03.1, N03.2, N03.3, N03.4, N03.5, N03.6, N03.7...
2, were renal transplant or chronic RRT (ESRD or > 1 RRT event) up to 365 days lookback before index hospitalization; absence of ICD-10 diagnosis code for AKI (N17. %); first RRT initiated outside of the ICU; use of prolonged intermittent RRT (PIRRT): 5A1D80Z (performance of ...