ICD-9-CM diagnosis code (retired)
279.09 — Other deficiency of humoral immunity
About ICD-9-CM 279.09
279.09 is an ICD-9-CM diagnosis code for other deficiency of humoral immunity. ICD-9-CM was retired for U.S. claims on October 1, 2015, when ICD-10-CM took over.
The CMS General Equivalence Mappings translate it to 4 ICD-10-CM codes, such as D80.6 (Antibody deficiency with near-normal immunoglobulins or with hyperimmunoglobulinemia), D80.7 (Transient hypogammaglobulinemia of infancy) and D80.8 (Other immunodeficiencies with predominantly antibody defects). All of these are approximate matches, so review the record to pick the right one.
ICD-10-CM equivalents
- D80.6Antibody deficiency with near-normal immunoglobulins or with hyperimmunoglobulinemiaapproximate
- D80.7Transient hypogammaglobulinemia of infancyapproximate
- D80.8Other immunodeficiencies with predominantly antibody defectsapproximate
- D80.9Immunodeficiency with predominantly antibody defects, unspecifiedapproximate
Common questions about 279.09
GEMs are a translation aid, not a substitute for coding from the record. The 2027 ICD-10 code set has changed since the last GEMs release in 2018. Page updated September 29, 2026.