Other non-follicular lymphoma, intrapelvic lymph nodes

This code signifies a diagnosis of a non-follicular lymphoma that is not otherwise specified or classifiable as a more specific type, and is located within the intrapelvic lymph nodes. This includes various rare or unclassified non-Hodgkin lymphomas affecting the lymphatic structures within the pelvic cavity.

Use this code when documentation specifies a non-follicular lymphoma affecting the intrapelvic lymph nodes, and a more specific histological type (e.g., diffuse large B-cell, mantle cell) is not identified or is explicitly stated as "other." Supporting documentation would include pathology reports confirming lymphoma and imaging or surgical reports detailing intrapelvic lymph node involvement.

• Ensure the pathology report clearly indicates "non-follicular" and does not specify a more precise lymphoma subtype.
• Verify the anatomical site is explicitly documented as "intrapelvic lymph nodes" to differentiate from other nodal or extranodal sites.
• Sequence this code as the primary diagnosis when it is the reason for the encounter, followed by any associated signs, symptoms, or complications.