2006 ICD-9-CM Volume 1 Diagnosis Codes Home > Neoplasms 140-239 > Malignant Neoplasm Of Lymphatic And Hematopoietic Tissue 200-208 > Other Malignant Neoplasms Of Lymphoid And Histiocytic Tissue 202.* > 2006 ICD-9-CM Diagnosis 202.5 Letterer-siwe disease View the most recent version of ICD-9-CM 202.5 Acute, disseminated, rapidly progressive form of Langerhans-cell histiocytosis. 202.5 is a non-specific code that cannot be used to specify a diagnosis 202.5 contains 9 index entries View the ICD-9-CM Volume 1 202.* hierarchy Alternate Terminology Acute: differentiated progressive histiocytosis histiocytosis X (progressive) infantile reticuloendotheliosis reticulosis of infancy 202.5 Excludes Hand-Schüller-Christian disease (277.89) histiocytosis (acute) (chronic) (277.89) histiocytosis X (chronic) (277.89)  Index entries containing 202.5: Abt-Letterer-Siwe syndrome (acute histiocytosis X) (M9722/3) 202.5 Disease, diseased - see also Syndrome Letterer-Siwe (acute histiocytosis X) (M9722/3) 202.5 Histiocytosis (acute) (chronic) (subacute) 277.89 acute differentiated progressive (M9722/3) 202.5 X (chronic) 277.89 acute (progressive) (M9722/3) 202.5 Letterer-Siwe disease (acute histiocytosis X) (M9722/3) 202.5 Reticuloendotheliosis acute infantile (M9722/3) 202.5 nonlipid (M9722/3) 202.5 Reticulosis (skin) acute of infancy (M9722/3) 202.5 Syndrome - see also Disease Abt-Letterer-Siwe (acute histiocytosis X) (M9722/3) 202.5