2B31.2 Langerhans cell histiocytosis
International Classification of Diseases for Mortality and Morbidity Statistics, 11th Revision, v2024-01
A neoplastic proliferation of Langerhans cells which contain Birbeck granules by ultrastructural examination. Three major overlapping syndromes are recognised: eosinophilic granuloma, Letterer-Siwe disease, and Hand-Schuller-Christian disease. The clinical course is generally related to the number of organs affected at presentation.
inclusions
- Histiocytosis X
sections/codes in this section (2B31.2-2B31.2)
- Langerhans cell histiocytosis involving the skin (2B31.20)
- Other specified Langerhans cell histiocytosis (2B31.2Y)
- Langerhans cell histiocytosis, unspecified (2B31.2Z)
postcoordination
Add Stem and/or Extension codes to form a cluster code which adds detail to the condition.
Histopathology - only one may be selected
Has manifestation - multiple selections are allowed
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