Lymphoblastic lymphoma, nodes of head, face, and neck

This code signifies a malignant neoplasm characterized by the proliferation of immature lymphoid cells, specifically affecting the lymph nodes located in the head, face, and neck regions. It represents a rapidly progressive form of non-Hodgkin lymphoma originating from B-cell or T-cell precursors.

Apply this code when documentation confirms a diagnosis of lymphoblastic lymphoma with specific involvement of cervical, supraclavicular, preauricular, or other lymph nodes within the head, face, or neck. This diagnosis is typically established through biopsy and histopathological examination.

• Ensure the documentation explicitly states "lymphoblastic lymphoma" and specifies involvement of lymph nodes in the head, face, or neck.
• Distinguish from other types of non-Hodgkin lymphomas, such as diffuse large B-cell lymphoma, which have different ICD-10-CM codes.
• Code any associated symptoms or complications, such as B symptoms (fever, night sweats, weight loss), as secondary diagnoses.