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Dx

ICD-10-CM 2027 · D80-D89

Certain disorders involving the immune mechanism

Part of chapter 3, diseases of the blood and blood-forming organs and certain disorders involving the immune mechanism.

About D80-D89

Block D80-D89 contains 7 categories and 83 billable codes for FY2027. No codes here changed in the FY2027 update. 0 codes are MCCs and 40 are CCs when reported as secondary diagnoses.

D80Immunodeficiency with predominantly antibody defects

D81Combined immunodeficiencies

D82Immunodeficiency associated with other major defects

D83Common variable immunodeficiency

D84Other immunodeficiencies

D86Sarcoidosis

D89Other disorders involving the immune mechanism, not elsewhere classified

Block notes

Includes
  • defects in the complement system
  • immunodeficiency disorders, except human immunodeficiency virus [HIV] disease
  • sarcoidosis
Excludes1
  • autoimmune disease (systemic) NOS (M35.9)
  • functional disorders of polymorphonuclear neutrophils (D71-)
Excludes2
  • human immunodeficiency virus [HIV] disease (B20)