C85.2Mediastinal (thymic) large B-cell lymphoma

C85.2 is the ICD-10-CM diagnosis code for mediastinal (thymic) large B-cell lymphoma. It belongs to category C85 (other specified and unspecified types of non-Hodgkin 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 11 subcodes must be used instead.

Within C85 (other specified and unspecified types of non-Hodgkin lymphoma), C85.2 is specifically for mediastinal (thymic) large B-cell lymphoma. Related codes cover unspecified B-cell lymphoma (C85.1), other specified types of non-Hodgkin lymphoma (C85.8) and Non-Hodgkin lymphoma, unspecified (C85.9).

To report this condition, pick the subcode that matches the documentation: C85.20 (unspecified site), C85.21 (lymph nodes of head, face, and neck), C85.22 (intrathoracic lymph nodes), C85.23 (intra-abdominal lymph nodes), C85.24 (lymph nodes of axilla and upper limb), C85.25 (lymph nodes of inguinal region and lower limb), C85.26 (intrapelvic lymph nodes), C85.27 (spleen) and 3 more.

It has been part of ICD-10-CM since the code set took effect on October 1, 2015 and hasn't changed since.