D80-D89 ICD-10-CA block: Certain disorders involving the immune mechanism
D80-D89 isn’t a code on its own. Choose one of the 48 codes beneath it, the one the documentation supports.
Official description
D80-D89Certain disorders involving the immune mechanism (D80-D89)
ICD-10-CA · Canada
Codes in D80-D89
D80-D89 isn’t a code on its own. Open the group that matches what the note documents.
D80Immunodeficiency with predominantly antibody defects (10 codes)D81Combined immunodeficiencies (10 codes)D82Immunodeficiency associated with other major defects (7 codes)D83Common variable immunodeficiency (5 codes)D84Other immunodeficiencies (4 codes)D86Sarcoidosis (6 codes)D89Other disorders involving the immune mechanism, not elsewhere classified (6 codes)Notes for D80-D89
As CIHI prints them, with any note D80-D89 takes from the headings above it.
Includes
- Defects in the complement systemimmunodeficiency disorders, except human immunodeficiency virus [HIV] diseasesarcoidosis
Excludes
Conditions classified elsewhere.
- Autoimmune disease (systemic) NOS (M35.9)functional disorders of polymorphonuclear neutrophils (D71)human immunodeficiency virus [HIV] disease (B24)human immunodeficiency virus [HIV] disease complicating pregnancy, childbirth and the puerperium (O98.7-)
- Autoimmune disease (systemic) NOS (M35.9)certain conditions originating in the perinatal period (P00-P96)complications of pregnancy, childbirth and the puerperium (O00-O99)congenital malformations, deformations and chromosomal abnormalities (Q00-Q99)endocrine, nutritional and metabolic diseases (E00-E90)human immunodeficiency virus [HIV] disease (B24)injury, poisoning and certain other consequences of external causes (S00-T98)neoplasms (C00-D48)symptoms, signs and abnormal clinical and laboratory findings, not elsewhere classified (R00-R99)From Chapter 3: Diseases of the blood and blood-forming organs and certain disorders involving the immune mechanism (D50-D89)
Where D80-D89 sits
- 1ChapterChapter 3: Diseases of the blood and blood-forming organs and certain disorders involving the immune mechanism (D50-D89)
- 2Block D80-D89Certain disorders involving the immune mechanism
Source and release
- Data release
- ICD-10-CA · FY 2026–2027
- Effective date
- Apr 1, 2026
- Publisher
- CIHI
This page is built from the ICD-10-CA catalog that Vero Codes reads when it suggests codes: Canadian Institute for Health Information’s FY 2026–2027 release, imported from the publisher’s file and checked against it. The description, notes and structured data come from the same record.
Frequently asked questions
Is D80-D89 a valid ICD-10-CA code?
No. D80-D89 (Certain disorders involving the immune mechanism) is a block heading in CIHI’s ICD-10-CA FY 2026–2027 release. It holds 48 codes; record the one the documentation supports.
Where is D80-D89 in ICD-10-CA?
D80-D89 sits under Chapter 3: Diseases of the blood and blood-forming organs and certain disorders involving the immune mechanism (D50-D89).
What coding notes apply to D80-D89?
ICD-10-CA lists Includes, Excludes notes for D80-D89, including those from the headings it sits under. They are listed on this page with where each one comes from.
Which ICD-10-CA release does this page use?
It uses CIHI’s FY 2026–2027 release, in effect from Apr 1, 2026 to Mar 31, 2027. It is a reference: confirm the code against the current list and the payer’s rules before you submit it.