D80

Immunodeficiency with predominantly antibody defects

FY2027Chapter 3: Diseases of the blood and blood-forming organs and certain disorders involving the immune mechanism/D80–D89 Certain disorders involving the immune mechanism

Non-billable headerNot valid on its own. Use one of the more specific codes under it.

D80 is a non-billable ICD-10-CM code category for immunodeficiency with predominantly antibody defects. Report a more specific code from it instead. It is part of the FY2027 code set, effective October 1, 2026. The more specific codes under it are D80.0 Hereditary hypogammaglobulinemia, D80.1 Nonfamilial hypogammaglobulinemia, D80.2 Selective deficiency of immunoglobulin A [IgA], D80.3 Selective deficiency of immunoglobulin G [IgG] subclasses and 6 more. Its coding notes include 2 Excludes1 entries and 10 Excludes2 entries.

Excludes1

Not coded here. The listed conditions generally should not be reported together.

Also from chapter/block level (2 notes)
Inherited from D80–D89 Certain disorders involving the immune mechanism
  • autoimmune disease (systemic) NOS (M35.9)
  • functional disorders of polymorphonuclear neutrophils (D71-)

Excludes2

Not included here. Both codes may be reported if the patient has both conditions.

Also from chapter/block level (10 notes)
Inherited from D80–D89 Certain disorders involving the immune mechanism
  • human immunodeficiency virus [HIV] disease (B20)
Inherited from Chapter 3 Diseases of the blood and blood-forming organs and 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-O9A)
  • congenital malformations, deformations and chromosomal abnormalities (Q00-Q99)
  • endocrine, nutritional and metabolic diseases (E00-E88)
  • human immunodeficiency virus [HIV] disease (B20)
  • injury, poisoning and certain other consequences of external causes (S00-T88)
  • neoplasms (C00-D49)
  • symptoms, signs and abnormal clinical and laboratory findings, not elsewhere classified (R00-R94)

Includes

Further defines or gives examples of the content of the category.

Also from chapter/block level (3 notes)
Inherited from D80–D89 Certain disorders involving the immune mechanism
  • defects in the complement system
  • immunodeficiency disorders, except human immunodeficiency virus [HIV] disease
  • sarcoidosis

More specific codes under D80 10