ICD-10 Code D89.9 – Disorder involving the immune mechanism, unspecified (2026): Diagnosis, Symptoms & Billing Guide
The ICD-10 code for Disorder involving the immune mechanism, unspecified is D89.9.2026 ICD-10-CM Diagnosis Code D89.9 – Disorder involving the immune mechanism, unspecified Related ICD-10 Codes Parent code: D89 – Other disorders involving the immune mechanism, not elsewhere classified Other codes in same category: D89.0 – Polyclonal hypergammaglobulinemia, D89.1 – Cryoglobulinemia, D89.2 – Hypergammaglobulinemia, unspecified,…