D80-D89: Certain disorders involving the immune mechanism

ICD-10-CM 2027 block D80-D89 in chapter 3 (Diseases of the blood and blood-forming organs and certain disorders involving the immune mechanism) has 7 categories.

Block notes

Includes:
  • defects in the complement system
  • immunodeficiency disorders, except human immunodeficiency virus [HIV] disease
  • sarcoidosis
Excludes1 (not coded here):
  • autoimmune disease (systemic) NOS (M35.9)
  • functional disorders of polymorphonuclear neutrophils (D71-)
Excludes2 (not included here):
  • human immunodeficiency virus [HIV] disease (B20)