446 Polyarteritis nodosa and allied conditions convert 446 to ICD-10
446.0 Polyarteritis nodosa convert 446.0 to ICD-10
446.1 Acute febrile mucocutaneous lymph node syndrome [MCLS] convert 446.1 to ICD-10
446.2 Hypersensitivity angiitis convert 446.2 to ICD-10

446.20 … unspecified convert 446.20 to ICD-10

446.21 Goodpasture's syndrome convert 446.21 to ICD-10

446.29 Other specified hypersensitivity angiitis convert 446.29 to ICD-10
446.3 Lethal midline granuloma convert 446.3 to ICD-10
446.4 Wegener's granulomatosis convert 446.4 to ICD-10
446.5 Giant cell arteritis convert 446.5 to ICD-10
446.6 Thrombotic microangiopathy convert 446.6 to ICD-10
446.7 Takayasu's disease convert 446.7 to ICD-10