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Table 4 Top 30 maps in the forward mapping from ICD-9-CM to ICD-10-CM, ranked by their sum of \(Z(\alpha )\), \(Z(\beta )\), and Z(UR), from most to least total score

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

Map Map description \(Z(\alpha )\) \(Z(\beta )\) Z(UR) Total score
V5412 Aftercare for healing traumatic fracture of lower arm 7.99 12.72 12.15 32.87
V5416 Aftercare for healing traumatic fracture of lower leg 7.95 12.47 11.90 32.31
V5411 Aftercare for healing traumatic fracture of upper arm 6.74 10.80 10.31 27.86
99529 Unspecified adverse effect of other drug, medicinal and biological substance 7.44 10.19 9.72 27.36
V5413 Aftercare for healing traumatic fracture of hip 7.14 10.19 9.72 27.05
V5417 Aftercare for healing traumatic fracture of vertebrae 6.78 10.00 9.54 26.32
V5415 Aftercare for healing traumatic fracture of upper leg 7.09 9.80 9.35 26.23
9895 Toxic effect of venom 6.12 10.10 9.63 25.85
99811 Hemorrhage complicating a procedure 10.01 8.08 7.70 25.78
99812 Hematoma complicating a procedure 10.01 8.08 7.70 25.78
V5419 Aftercare for healing traumatic fracture of other bone 7.73 9.11 8.69 25.53
29289 Other specified drug-induced mental disorders 6.43 9.34 8.91 24.68
9982 Accidental puncture or laceration during a procedure, not elsewhere classified 9.94 6.14 5.84 21.92
73382 Nonunion of fracture 6.45 6.90 6.56 19.91
9050 Late effect of fracture of skull and face bones 5.45 6.83 6.50 18.78
9947 Asphyxiation and strangulation 4.53 7.25 6.90 18.68
98989 Toxic effect of other substance, chiefly nonmedicinal as to source, not elsewhere classified 5.14 6.47 6.16 17.77
24980 Secondary diabetes mellitus with other specified manifestations, not stated as uncontrolled, or unspecified 4.93 6.47 6.16 17.57
9880 Toxic effect of fish and shellfish eaten as food 5.19 6.23 5.92 17.34
9823 Toxic effect of other chlorinated hydrocarbon solvents 4.36 6.55 6.23 17.14
9063 Late effect of contusion 6.13 5.63 5.35 17.10
8065 Open fracture of lumbar spine with spinal cord injury 5.13 5.63 5.92 16.68
9057 Late effect of sprain and strain without mention of tendon injury 6.16 5.38 5.11 16.64
E959 Late effects of self-inflicted injury 4.82 5.85 5.56 16.22
E9990 Late effect of injury due to war operations 4.81 5.85 5.56 16.21
64131 Antepartum hemorrhage associated with coagulation defects, delivered, with or without mention of antepartum condition 3.72 6.31 6.01 16.04
8064 Closed fracture of lumbar spine with spinal cord injury 4.49 5.63 5.92 16.03
9064 Late effect of crushing 5.50 5.38 5.11 15.98
986 Toxic effect of carbon monoxide 4.56 5.85 5.56 15.97
73395 Stress fracture of other bone 5.38 5.38 5.11 15.87
  1. The map id and description correspond to ICD-9-CM code and description, respectively