D89.89 (Oth disrd involving the immune mechanism, NEC) is a billable ICD-10-CM medical diagnosis code in the Diseases of the blood and blood-forming organs and certain disorders involving the immune mechanism chapter. Other specified disorders involving the immune mechanism, not elsewhere classified

ICD-10-CM · Billable Code

D89.89Oth disrd involving the immune mechanism, NEC

Other specified disorders involving the immune mechanism, not elsewhere classified

Chapter D50-D89: Diseases of the blood and blood-forming organs and certain disorders involving the immune mechanism

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Common questions about D89.89 (Oth disrd involving the immune mechanism, NEC)

What does ICD-10 code D89.89 mean?
D89.89 is the ICD-10-CM 2025 code for Oth disrd involving the immune mechanism, NEC. Other specified disorders involving the immune mechanism, not elsewhere classified. ICD-10-CM is the medical coding system used by clinicians, hospitals and insurers worldwide to classify diseases and conditions in a standard way.
Is D89.89 a billable diagnosis code?
Yes, D89.89 is a billable / specific ICD-10-CM code, meaning it can be used by clinicians and hospitals as a primary or secondary diagnosis on claims and electronic health records.
Which ICD-10 chapter does D89.89 belong to?
D89.89 belongs to the chapter "Diseases of the blood and blood-forming organs and certain disorders involving the immune mechanism" (codes D50-D89). ICD-10-CM organises codes into 22 chapters by body system or condition type, which helps clinicians navigate related diagnoses.
Where can I get plain-language information about Oth disrd involving the immune mechanism, NEC?
For a plain-language explanation of Oth disrd involving the immune mechanism, NEC, ask GoDavaii's Health AI - it explains medical conditions in 22+ Indian languages, free, with no signup. Tap "Ask GoDavaii AI about Oth disrd involving the immune mechanism, NEC" above to get a personalised answer.

Source: ICD-10-CM 2025 (Centers for Medicare & Medicaid Services, public domain). Codes valid from October 1, 2024. CMS source ↗