C83.39Diffuse large B-cell lymphoma, extranodal and solid organ sites

C83.39 is the ICD-10-CM diagnosis code for diffuse large B-cell lymphoma, extranodal and solid organ sites. It belongs to category C83 (non-follicular lymphoma), block C81-C96 (malignant neoplasms of lymphoid, hematopoietic and related tissue) and chapter 2 (neoplasms). It is a header code, so it can't be reported by itself; one of its 2 subcodes must be used instead.

Within C83.3 (diffuse large B-cell lymphoma), C83.39 is specifically for diffuse large B-cell lymphoma, extranodal and solid organ sites. Related codes cover unspecified site (C83.30), lymph nodes of head, face, and neck (C83.31), intrathoracic lymph nodes (C83.32), intra-abdominal lymph nodes (C83.33), lymph nodes of axilla and upper limb (C83.34), lymph nodes of inguinal region and lower limb (C83.35), intrapelvic lymph nodes (C83.36), spleen (C83.37) and 2 more.

To report this condition, pick the subcode that matches the documentation: C83.390 (lymphoma) and C83.398 (sites).

It has been part of ICD-10-CM since the code set took effect on October 1, 2015, and changed in FY2025 (expanded into subcodes).

Before ICD-10, this condition was coded in ICD-9-CM as 200.00 (reticulosarcoma, unspecified site, extranodal and solid organ sites), 200.50 (primary central nervous system lymphoma, unspecified site, extranodal and solid organ sites) and 200.70 (large cell lymphoma, unspecified site, extranodal and solid organ sites).