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Table 2 Descriptive statistics of the H(A), H(B), and UR entropic measures between ICD-9-CM and ICD-10-CM

From: Entropic measures of complexity in a new medical coding system

  Forward mapping Backward mapping
  From ICD-9-CM to ICD-10-CM From ICD-10-CM to ICD-9-CM
  H(A) H(B) UR H(A) H(B) UR
Count 14567 14567 14567 69823 69823 69823
Mean 0.52 0.30 0.33 0.30 0.07 0.12
Std 1.26 0.69 0.72 1.01 0.28 0.36
Min 0.00 0.00 0.00 0.00 0.00 0.00
25% 0.00 0.00 0.00 0.00 0.00 0.00
50% 0.00 0.00 0.00 0.00 0.00 0.00
75% 0.00 0.00 0.00 0.00 0.00 0.00
Max 13.10 9.06 9.06 7.31 3.58 3.58