D84.821

✓ Billable

Immunodeficiency due to drugs

Diseases of the blood and blood-forming organs and certain disorders involving the immune mechanism (D50-D89)

Also Known As

Immunodeficiency due to (current or past) medication

✅ No additional coding notes for D84.821

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Code Information

CodeD84.821

BillableYes

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)