Convert ICD-10-CM Z86.73 to ICD-9-CM

ICD-10-CM Z86.73 converts directly to:
  • 2015 ICD-9-CM V12.54 Personal history of transient ischemic attack (TIA), and cerebral infarction without residual deficits

Source: 2020 ICD-10-CM CMS General Equivalence Mappings.