D80-D89
Certain disorders involving the immune mechanism
Certain disorders involving the immune mechanism (D80-D89) is a block within ICD-10-CM Chapter 3: Diseases of the blood and blood-forming organs and certain disorders involving the immune mechanism. It holds 7 categories.
Includes
- defects in the complement system
- immunodeficiency disorders, except human immunodeficiency virus [HIV] disease
- sarcoidosis
Excludes1
Not coded here. An Excludes1 code should never be reported at the same time as the code above it.
- autoimmune disease (systemic) NOS (M35.9)
- functional disorders of polymorphonuclear neutrophils (D71-)
- human immunodeficiency virus [HIV] disease (B20)
Categories in D80-D89
- D80Immunodeficiency with predominantly antibody defectscategory
- D81Combined immunodeficienciescategory
- D82Immunodeficiency associated with other major defectscategory
- D83Common variable immunodeficiencycategory
- D84Other immunodeficienciescategory
- D86Sarcoidosiscategory
- D89Oth disorders involving the immune mechanism, NECcategory
Source
ICD-10-CM FY2026. Centers for Medicare & Medicaid Services (CMS) / National Center for Health Statistics (NCHS), “2026 ICD-10-CM Code Descriptions in Tabular Order” (icd10cm_order_2026.txt). Download the original file from cms.gov. Public domain (US Government work). Descriptors, billable flags and instructional notes on this page are reproduced from that file without modification. Krasyn adds no clinical guidance.