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D80.4 ICD-10-CA code: Selective deficiency of immunoglobulin M [IgM]

D80.4 is the ICD-10-CA code for “Selective deficiency of immunoglobulin M [IgM]” in CIHI’s FY 2026–2027 release, in effect from Apr 1, 2026.

Official description

D80.4

Selective deficiency of immunoglobulin M [IgM]

Short description: Selective deficiency of immunoglobulin M

ICD-10-CA · Canada · Also written D804

Index terms

Entries in CIHI’s alphabetical index that lead to D80.4. Searching the index by the condition the note names is how coders reach this code.

  • Immunodeficiency, selective, immunoglobulin, M (IgM)
  • Deficiency, deficient, immunoglobulin, selective, M (IgM)

Notes for D80.4

As CIHI prints them, with any note D80.4 takes from the headings above it.

Includes

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-)From D80-D89 Certain disorders involving the immune mechanism
  • 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 D80.4 sits

  1. 1ChapterChapter 3: Diseases of the blood and blood-forming organs and certain disorders involving the immune mechanism (D50-D89)
  2. 2Block D80-D89Certain disorders involving the immune mechanism
  3. 3Category D80Immunodeficiency with predominantly antibody defects
  4. 4Valid code D80.4Selective deficiency of immunoglobulin M [IgM]

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.

See D80.4 in the CIHI source

Frequently asked questions

What does ICD-10-CA code D80.4 mean?

D80.4 is the ICD-10-CA code for “Selective deficiency of immunoglobulin M [IgM]” in CIHI’s ICD-10-CA FY 2026–2027 release.

Where is D80.4 in ICD-10-CA?

D80.4 sits under D80 Immunodeficiency with predominantly antibody defects, within D80-D89 Certain disorders involving the immune mechanism, within Chapter 3: Diseases of the blood and blood-forming organs and certain disorders involving the immune mechanism (D50-D89).

What coding notes apply to D80.4?

ICD-10-CA lists Includes, Excludes notes for D80.4, 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.

Codes beside D80.4

D80.0Hereditary hypogammaglobulinaemiaD80.1Nonfamilial hypogammaglobulinaemiaD80.2Selective deficiency of immunoglobulin A [IgA]D80.3Selective deficiency of immunoglobulin G [IgG] subclassesD80.5Immunodeficiency with increased immunoglobulin M [IgM]D80.6Antibody deficiency with near-normal immunoglobulins or with hyperimmunoglobulinaemiaD80.7Transient hypogammaglobulinaemia of infancyD80.8Other immunodeficiencies with predominantly antibody defectsD80.9Immunodeficiency with predominantly antibody defects, unspecified