ICD-10-CM · Chapter 3 · D50–D89
D89
Other disorders involving the immune mechanism, not elsewhere classified
Diseases of the blood and immune mechanism
Heads up:this is a parent code. It's typically not directly billable — you need to drill down to a more specific child code (one with additional digits) to use on a claim.
Quick facts
- Code
- D89
- Type
- Category / header (non-billable)
- ICD-10-CM chapter
- Chapter 3 — Diseases of the blood and immune mechanism
- Category
- D89
- Specificity
- 3 characters
How coders use this code
ICD-10-CM D89 is a category (header) for other disorders involving the immune mechanism, not elsewhere classified. It is generally not reported directly on a claim — coders drill down to a more specific child code (one with additional characters) that matches the documentation. Use the related codes below to find the billable code that fits, and verify against the annual NCHS/CMS guidelines.
Related codes in D89
- D89.0Polyclonal hypergammaglobulinemia
- D89.1Cryoglobulinemia
- D89.2Hypergammaglobulinemia, unspecified
- D89.3Immune reconstitution syndrome
- D89.4Mast cell activation syndrome and related disorders
- D89.40Mast cell activation, unspecified
- D89.41Monoclonal mast cell activation syndrome
- D89.42Idiopathic mast cell activation syndrome
- D89.43Secondary mast cell activation
- D89.44Hereditary alpha tryptasemia
- D89.49Other mast cell activation disorder
- D89.8Other specified disorders involving the immune mechanism, not elsewhere classified
- D89.81Graft-versus-host disease
- D89.810Acute graft-versus-host disease
- D89.811Chronic graft-versus-host disease
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