ICD-10-CM · Chapter 2
C96..0 Multifocal and multisystemic (disseminated) Langerhans-cell histiocytosis
← C96 — Other and unspecified malignant neoplasms of lymphoid, hematopoietic and related tissue
Chapter 2: C00-D49
Includes
- Histiocytosis X, multisystemic
- Letterer-Siwe disease
Excludes 1 (cannot be coded together)
- adult pulmonary Langerhans cell histiocytosis (J84.82)
- multifocal and unisystemic Langerhans-cell histiocytosis (C96.5)
- unifocal Langerhans-cell histiocytosis (C96.6)
Last reviewed: September 2026