ICD-10-CM > A00-B99 > A50-A64 > A52 > A52.0 A52.0 Cardiovascular and cerebrovascular syphilis Non-Billable/Non-Specific Codes A52.00Cardiovascular syphilis, unspecifiedA52.01Syphilitic aneurysm of aortaA52.02Syphilitic aortitisA52.03Syphilitic endocarditisA52.04Syphilitic cerebral arteritisA52.05Other cerebrovascular syphilisA52.06Other syphilitic heart involvementA52.09Other cardiovascular syphilis