Mature T-cell or NK-cell lymphomas and lymphoproliferative disorders, primary cutaneous specified types
International Classification of Diseases for Mortality and Morbidity Statistics, 11th Revision, v2024-01
Primary cutaneous T-cell lymphomas (CTCL) and NK-cell lymphomas are malignant lymphoproliferative diseases of unknown cause that are thought to originate from T-lymphocytes in the lymphoid tissue of the skin and by definition are confined to the skin at initial diagnosis. Included in the class is also a small number of lymphoma-like primary cutaneous lymphoproliferative disorders which are not considered to be truly malignant.
exclusions
sections/codes in this section (2B00-2B0Z)
- Subcutaneous panniculitis-like T-cell lymphoma (2B00)
- Mycosis fungoides (2B01)
- Sézary syndrome (2B02)
- Primary cutaneous CD30-positive T-cell lymphoproliferative disorders (2B03)
- Other specified primary cutaneous mature T-cell or NK-cell lymphomas and lymphoproliferative disorders (2B0Y)
- Primary cutaneous T-cell lymphoma of undetermined or unspecified type (2B0Z)
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