Oth types of non-hodg lymph, nodes of head, face, and neck

This code signifies a diagnosis of a non-Hodgkin lymphoma that doesn't fit into more specific categories, affecting the lymph nodes located in the head, face, or neck regions. It represents a malignant proliferation of lymphocytes with diverse histological features, originating in these specific lymphatic sites.

Use this code when documentation clearly identifies a non-Hodgkin lymphoma that is not otherwise specified (e.g., diffuse large B-cell, follicular, mantle cell) and is explicitly localized to lymph nodes of the head, face, or neck. Supporting documentation would include pathology reports confirming the diagnosis of non-Hodgkin lymphoma and imaging or clinical notes specifying the affected anatomical sites.

• Ensure the documentation specifies "other specified types" of non-Hodgkin lymphoma, not just "unspecified."
• Verify the exact anatomical location of the affected lymph nodes to confirm they are within the head, face, or neck region.
• Do not use this code if a more specific type of non-Hodgkin lymphoma (e.g., C83.31 for diffuse large B-cell lymphoma of lymph nodes of head, face, and neck) is documented.