Fig. 2From: Improving documentation and coding for acute organ dysfunction biases estimates of changing sepsis severity and burden: a retrospective studyDecreasing mean creatinine change associated with acute kidney failure codes with simultaneous rise in codes. Blue line represents the declining annual mean ∆ creatinine (peak – baseline creatinine) associated with an ICD-9-CM code for acute kidney failure (584x) over time. Red line represents the rising incidence of hospitalizations with acute kidney failure codes. Excludes patients with codes for end-stage renal disease (585.6). ICD-9-CM, International Classification of Diseases, Ninth Revision, Clinical Modification Back to article page