Fig. 3
From: Entropic measures of complexity in a new medical coding system
Forward and backward entropic measures between the diagnosis codes of ICD-9-CM and ICD-10-CM. The x-axes represent the sum of \(Z(\alpha )\), \(Z(\beta )\), and Z(UR) entropic measures. a, c show clustered bar plots of the indicated clinical classes arranged from the least to the most sum of entropic measures. Negative values signify no information gained or lost information (on average) from the source system to the target system. Positive values suggest gained information. b, d display related box plots that may help visually assess the variation in the entropic measures in each clinical class. The wider the box, the more the interquartile range, thus the more variability in the measures. The tighter the box and whiskers, the more the measures agree