Cutan T-cell lymphoma, unsp, extrnod and solid organ sites

This code signifies a malignant proliferation of T-lymphocytes that primarily affects the skin but has spread to or originated in extranodal sites or solid organs, where the specific type of cutaneous T-cell lymphoma is not documented. It represents a systemic involvement of this rare lymphatic cancer beyond the skin.

This code is appropriate when documentation confirms a diagnosis of cutaneous T-cell lymphoma with involvement of sites other than lymph nodes, such as the liver, lungs, or bone marrow, and the specific subtype of CTCL (e.g., Mycosis Fungoides, Sezary Syndrome) is not specified. It should be used when the physician explicitly states "cutaneous T-cell lymphoma, extranodal and solid organ sites, unspecified."

• Ensure documentation clearly states "extranodal and solid organ sites" and that the specific type of cutaneous T-cell lymphoma is not identified.
• Do not use this code if the involvement is limited to the skin or regional lymph nodes; other codes exist for those scenarios.
• Sequence this code as the primary diagnosis when the cutaneous T-cell lymphoma is the reason for the encounter and its extranodal/solid organ involvement is being managed.