D89.8

Non-billable

Other specified disorders involving the immune mechanism, not elsewhere classified

D89.8 is the ICD-10-CM code for Other specified disorders involving the immune mechanism, not elsewhere classified. It is a non-billable category code — use a more specific child code such as D89.81 for billing.

Status
Header (non-billable)
Chapter
D50-D89
Parent
D89
Subcodes
5
Edition
FY2026

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

No additional coding notes for this code.

Frequently asked questions

What is ICD-10 code D89.8?
D89.8 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 D89.8 a billable code?
No — D89.8 is a non-billable header code. Use a more specific child code (such as D89.81) for billing.
What are the subcodes of D89.8?
D89.8 has 5 more specific child codes, including D89.81, D89.82, D89.83.

Source: CMS ICD-10-CM FY2026. For informational purposes only — not medical advice. See our medical disclaimer.

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