D89.9 - Disorder involving the immune mechanism, unspecified

The ICD 10 Code for Disorder involving the immune mechanism, unspecified is listed as D89.9.
Additional information concerning this code and description can be found below including ICD 9 crosswalks / GEMS, chapter information, and DRGs where available.

ICD 10 CM Field	Value
Diagnosis Code:	D89.9
Description:	Disorder involving the immune mechanism, unspecified Immune disease NOS
Diagnostic Related Groups (MS-DRG v30.0)	814 - Reticuloendothelial & Immunity Disorders W Mcc 815 - Reticuloendothelial & Immunity Disorders W Cc 816 - Reticuloendothelial & Immunity Disorders W/o Cc/mcc

Chapter	Diseases of the blood and blood-forming organs and certain disorders involving the immune mechanism (D50-D89)
Block	Certain disorders involving the immune mechanism (D80-D89)
Parent	D89 - Other disorders involving the immune mechanism, not elsewhere classified
ICD-9-CM Diagnosis Codes General Equivalence Mappings (GEMS):
ICD 9 Dx Code:	279.9 - Unspecified disorder of immune mechanism
ICD-10-CM Siblings (same level / similar specificity) of D89.9:
D89.0 - Polyclonal hypergammaglobulinemia
D89.1 - Cryoglobulinemia
D89.2 - Hypergammaglobulinemia, unspecified
D89.3 - Immune reconstitution syndrome
D89.8 - Other specified disorders involving the immune mechanism, not elsewhere classified