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279.9 - Unspecified Disorder Of Immune Mechanism


The ICD 9 Code for Unspecified disorder of immune mechanism is listed as 279.9.
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: 279.9
Long Description: Unspecified disorder of immune mechanism
Short Description: Immune mechanism dis NOS
Chapter: Endocrine, Nutritional And Metabolic Diseases, And Immunity Disorders
Block: Other Metabolic Disorders And Immunity Disorders (270-279)
ICD-10-CM Diagnosis Codes General Equivalence Mappings (GEMS):
ICD-10-CM Code: D89.9 - Disorder involving the immune mechanism, unspecified
ICD-9-CM Siblings (same level / similar specificity) of 279.9:
279.2 - Combined immunity deficiency
279.3 - Unspecified immunity deficiency
279.8 - Other specified disorders involving the immune mechanism