ICD-10-CM · Chapter 3 · D50–D89
D81.7
Major histocompatibility complex class II deficiency
Diseases of the blood and immune mechanism
Quick facts
- Code
- D81.7
- Type
- Billable code
- ICD-10-CM chapter
- Chapter 3 — Diseases of the blood and immune mechanism
- Category
- D81 — Combined immunodeficiencies
- Specificity
- 4 characters
How coders use this code
ICD-10-CM D81.7 is a billable, fully specified code, so it can be reported directly on a claim to document a diagnosis of major histocompatibility complex class ii deficiency. Coders assign it when the chart documentation supports this level of detail, always matching to the most specific code available and verifying against the chapter-specific guidelines published annually by NCHS/CMS.
Related codes in D81
- D81Combined immunodeficiencies
- D81.0Severe combined immunodeficiency [SCID] with reticular dysgenesis
- D81.1Severe combined immunodeficiency [SCID] with low T- and B-cell numbers
- D81.2Severe combined immunodeficiency [SCID] with low or normal B-cell numbers
- D81.3Adenosine deaminase [ADA] deficiency
- D81.30Adenosine deaminase deficiency, unspecified
- D81.31Severe combined immunodeficiency due to adenosine deaminase deficiency
- D81.32Adenosine deaminase 2 deficiency
- D81.39Other adenosine deaminase deficiency
- D81.4Nezelof's syndrome
- D81.5Purine nucleoside phosphorylase [PNP] deficiency
- D81.6Major histocompatibility complex class I deficiency
- D81.8Other combined immunodeficiencies
- D81.81Biotin-dependent carboxylase deficiency
- D81.810Biotinidase deficiency
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