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D84.81 Immunodeficiency due to conditions classified elsewhere
BackD84Other immunodeficienciesCategory4 →D84.0Lymphocyte function antigen-1 [LFA-1] defectCategoryD84.1Defects in the complement systemCategoryD84.8Other specified immunodeficienciesCategory3 →D84.81Immunodeficiency due to conditions classified elsewhereCategoryD84.82Immunodeficiency due to drugs and external causesCategory2 →D84.821Immunodeficiency due to drugsCategoryD84.822Immunodeficiency due to external causesCategoryD84.89Other immunodeficienciesCategoryD84.9Immunodeficiency, unspecifiedCategory
CategoryCODABLE
D84.81
Immunodeficiency due to conditions classified elsewhere
EXCLUDES
Excludes1: certain disorders involving the immune mechanism (D80-D83, D84.0, D84.1, D84.9)
human immunodeficiency virus [HIV] disease (B20)
human immunodeficiency virus [HIV] disease (B20)
CODING RULE
Code first: underlying condition, such as:
chromosomal abnormalities (Q90-Q99)
diabetes mellitus (E08-E13)
malignant neoplasms (C00-C96)
chromosomal abnormalities (Q90-Q99)
diabetes mellitus (E08-E13)
malignant neoplasms (C00-C96)
- Chapter
- III · Diseases of the blood and blood-forming organs and certain disorders involving the immune mechanism
- Section
- D80-D89
- Valid from
Source
CMS ICD-10-CM Tabular List, edition FY2026.