Hodgkin lymphoma, unsp, extranodal and solid organ sites

This code signifies a diagnosis of Hodgkin lymphoma where the specific subtype is not documented, and the disease has manifested in sites outside of the lymph nodes or in solid organs. It indicates a systemic involvement beyond the lymphatic system without further pathological classification.

Apply this code when the medical record confirms Hodgkin lymphoma, but the pathologist or clinician has not specified the particular histological subtype (e.g., nodular sclerosis, mixed cellularity). It is appropriate when documentation clearly states extranodal or solid organ involvement without specifying the exact site.

• Only use this code when the specific subtype of Hodgkin lymphoma is truly unknown or unspecified in the documentation.
• Avoid using this code if a more specific site of extranodal involvement is documented (e.g., spleen, bone marrow); instead, use a more precise code from the C81.9- series with a fifth character indicating the specific site.
• Always review pathology reports and physician notes for any mention of Hodgkin lymphoma subtype or specific extranodal sites before defaulting to this unspecified code.