D81.39
✓ BillableOther adenosine deaminase deficiency
Diseases of the blood and blood-forming organs and certain disorders involving the immune mechanism (D50-D89)
Also Known As
Adenosine deaminase [ADA] deficiency type 1, NOSAdenosine deaminase [ADA] deficiency type 1, without SCIDAdenosine deaminase [ADA] deficiency type 1, without severe combined immunodeficiencyPartial ADA deficiency (type 1)Partial adenosine deaminase deficiency (type 1)
✅ No additional coding notes for D81.39
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CodeD81.39
BillableYes
ParentD81.3
CategoryDiseases of the blood and blood-forming organs and certain disorders involving the immune mechanism (D50-D89)
Excludes10 rule(s)
Excludes20 note(s)
Data Source
CMS ICD-10-CM 2026 Tabular List
Updated October 1, 2025 (FY2026)