Langerhans-cell histiocytosis ICD10CM:C96.6 ICD10CM:C96.0 NCI:C3160 OMIM:604856 OMIM:246400 DOID:10623 DOID:10625 DOID:10624 MESH:C538636 A histiocytosis that is characterized by clonal proliferation of Langerhans cells. UMLS_CUI:C0019621 DOID:2571 ICD9CM:202.5 NCI:C3107 SNOMEDCT_US_2020_03_01:154583006 OMIM mapping confirmed by DO. [SN]. SNOMEDCT_US_2020_03_01:234439008 UMLS_CUI:C0023381 DOID:10620 DOID:2554 DOID:2553 disease_ontology DOID:9582 MESH:D006646 DOID:10618 DOID:10617 Histiocytosis X Langerhan's cell histiocytosis Langerhans cell granulomatosis Letterer-Siwe disease Letterer-Siwe disease involving intra-abdominal lymph nodes Letterer-Siwe disease involving intrapelvic lymph nodes Letterer-Siwe disease involving intrathoracic lymph nodes Letterer-Siwe disease involving lymph nodes of axilla and upper limb Letterer-Siwe disease involving lymph nodes of head, face and neck Letterer-Siwe disease involving lymph nodes of head, face, and neck Letterer-Siwe disease involving lymph nodes of inguinal region and lower limb Letterer-Siwe disease involving lymph nodes of multiple sites Letterer-Siwe disease involving spleen Letterer-Siwe disease of intra-abdominal lymph nodes Letterer-Siwe disease of intrapelvic lymph nodes Letterer-Siwe disease of intrathoracic lymph nodes Letterer-Siwe disease of lymph nodes of axilla and upper limb Letterer-Siwe disease of lymph nodes of axilla and/or upper limb Letterer-Siwe disease of lymph nodes of head, face and neck Letterer-Siwe disease of lymph nodes of head, face and/or neck Letterer-Siwe disease of lymph nodes of inguinal region amd/or lower limb Letterer-Siwe disease of lymph nodes of inguinal region and lower limb Letterer-Siwe disease of lymph nodes of inguinal region and/or lower limb Letterer-Siwe disease of lymph nodes of multiple sites Letterer-Siwe disease of spleen histiocytosis