Follicular lymphoma grade I, intrapelvic lymph nodes

This code signifies a specific type of non-Hodgkin lymphoma, follicular lymphoma, which is characterized by a slow-growing proliferation of B-lymphocytes. The "grade I" indicates a low-grade, less aggressive form of the disease. The "intrapelvic lymph nodes" specifies the primary anatomical location of the lymphoma within the pelvic region.

Use this code when diagnostic pathology reports confirm follicular lymphoma, grade I, and imaging or surgical findings clearly indicate involvement of lymph nodes located within the pelvis. Documentation must explicitly state both the grade of the lymphoma and the intrapelvic location. This code is appropriate for initial diagnosis and subsequent encounters where the intrapelvic involvement is still relevant.

• Ensure the pathology report explicitly states "follicular lymphoma, grade I" to support this specific code.
• Verify documentation confirms the involvement of lymph nodes within the pelvis, as opposed to other abdominal or inguinal regions.
• Always sequence this code as the primary diagnosis when it is the reason for the encounter, unless another condition is the principal diagnosis and this is a secondary manifestation.