ICD-10-CM > I00-I99 > I70-I79 > I70 > I70.9 I70.9 Other and unspecified atherosclerosis Non-Billable/Non-Specific Type 2 Excludes disorders of pyrophosphate metabolism (E83.82-) Codes I70.90Unspecified atherosclerosisI70.91Generalized atherosclerosisI70.92Chronic total occlusion of artery of the extremities