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446.20 - Hypersensitivity Angiitis, Unspecified


The ICD 9 Code for Hypersensitivity angiitis, unspecified is listed as 446.20.
Additional information concerning this code and description can be found below including ICD 10 crosswalks / GEMS, and chapter information where available.
ICD 9 CM Field Value
Diagnosis Code: 446.20
Long Description: Hypersensitivity angiitis, unspecified
Short Description: Hypersensit angiitis NOS
Chapter: Diseases Of The Circulatory System
Block: Diseases Of Arteries, Arterioles, And Capillaries (440-449)
ICD-10-CM Diagnosis Codes General Equivalence Mappings (GEMS):
ICD-10-CM Code: M31.0 - Hypersensitivity angiitis (approximate)
ICD-9-CM Siblings (same level / similar specificity) of 446.20:
446.21 - Goodpasture's syndrome
446.29 - Other specified hypersensitivity angiitis