Oth non-follic lymphoma, lymph nodes of head, face, and neck

This code signifies a malignant lymphoma that does not originate from follicular centers, specifically affecting the lymph nodes located in the head, face, or neck regions. It encompasses various non-follicular subtypes of lymphoma, excluding those with a more specific ICD-10-CM code.

Assign this code when documentation confirms a diagnosis of a non-follicular lymphoma localized to the lymph nodes of the head, face, or neck, and a more specific subtype code is not available or appropriate. This typically requires pathology reports confirming the non-follicular nature and imaging or physical exam findings indicating involvement of the specified anatomical sites.

• Ensure the pathology report explicitly states "non-follicular lymphoma" or a similar term, and the anatomical site is clearly documented as head, face, or neck lymph nodes.
• Do not use this code if a more specific non-follicular lymphoma subtype (e.g., diffuse large B-cell lymphoma, mantle cell lymphoma) is identified and has its own unique ICD-10-CM code.
• Always sequence this code after any codes for primary malignancy if the lymphoma is secondary, or as the primary diagnosis when it is the reason for the encounter.