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Histiocytosis D76.3
    acute differentiated progressive C96.0
    Langerhans' cell NEC C96.6
        multifocal X
            multisystemic (disseminated) C96.0
            unisystemic C96.5
        pulmonary, adult (adult PLCH) J84.82
        unifocal (X) C96.6
    lipid, lipoid D76.3
        essential E75.29
    malignant C96.A
    mononuclear phagocytes NEC D76.1
        Langerhans' cells C96.6
    non-Langerhans cell D76.3
    polyostotic sclerosing D76.3
    sinus, with massive lymphadenopathy D76.3
    syndrome NEC D76.3
    X NEC C96.6
        acute (progressive) C96.0
        chronic C96.6
        multifocal C96.5
        multisystemic C96.0
        unifocal C96.6