Follicular lymphoma grade III, unsp, intrapelvic lymph nodes

This code signifies a high-grade follicular lymphoma, an indolent B-cell non-Hodgkin lymphoma, specifically located within the intrapelvic lymph nodes. The "unspecified" grade indicates that further subclassification of grade III (e.g., IIIa or IIIb) is not documented.

Apply this code when documentation clearly states a diagnosis of follicular lymphoma, grade III, with confirmed involvement of lymph nodes within the pelvic region. This diagnosis is typically established through biopsy and histopathological examination.

• Ensure documentation specifies "grade III" for follicular lymphoma; otherwise, a different grade code may be more appropriate.
• Verify the anatomical site is explicitly "intrapelvic lymph nodes" to avoid miscoding with other lymph node regions.
• Always sequence this code as the primary diagnosis when it is the reason for the encounter, unless another condition is driving the primary treatment.