ICD-10-CM category
D84: Other immunodeficiencies
Codes under D84 (Other immunodeficiencies). A ✓ marks a billable (fully specified) code; category codes without a ✓ are not billable on their own.
| Code | Description | Billable |
|---|---|---|
| D84.0 | Lymphocyte function antigen-1 [LFA-1] defect | ✓ |
| D84.1 | Defects in the complement system | ✓ |
| D84.8 | Other specified immunodeficiencies | — |
| D84.9 | Immunodeficiency, unspecified | ✓ |
| D84.81 | Immunodeficiency due to conditions classified elsewhere | ✓ |
| D84.82 | Immunodeficiency due to drugs and external causes | — |
| D84.89 | Other immunodeficiencies | ✓ |
| D84.821 | Immunodeficiency due to drugs | ✓ |
| D84.822 | Immunodeficiency due to external causes | ✓ |
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Informational only, not coding or medical advice. Verify against the official ICD-10-CM (FY2026) and your payer's guidelines.
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