D89.89
BillableOther specified disorders involving the immune mechanism, not elsewhere classified
D89.89 is the ICD-10-CM code for Other specified disorders involving the immune mechanism, not elsewhere classified. It is a billable, specific code valid for reimbursement.
D50-D89 Diseases of the blood and blood-forming organs and certain disorders involving the immune mechanism
Excludes1 — not coded here
- •human immunodeficiency virus disease (B20)
Frequently asked questions
- What is ICD-10 code D89.89?
- D89.89 is the ICD-10-CM code for "Other specified disorders involving the immune mechanism, not elsewhere classified". It falls under D50-D89 Diseases of the blood and blood-forming organs and certain disorders involving the immune mechanism.
- Is D89.89 a billable code?
- Yes — D89.89 is a billable, specific ICD-10-CM code valid for reimbursement.
- What is excluded from D89.89?
- Excludes1 (not coded here): human immunodeficiency virus disease (B20).
Source: CMS ICD-10-CM FY2026. For informational purposes only — not medical advice. See our medical disclaimer.
Look up another ICD-10 code or condition