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

Not billable

Is C85.2 billable?

No — C85.2 is a non-billable header code. C85.2 groups more specific codes and cannot be submitted on a claim. A valid ICD-10-CM code must be reported at the highest level of specificity available in its branch. Select one of the 11 billable codes beneath C85.2.

Billable codes under this header

C85.2 at a glance

Code	C85.2
Description	Mediastinal (thymic) large B-cell lymphoma
Billable	No — header code
Code set	ICD-10-CM FY2027
Valid for encounters	October 1, 2026 – September 30, 2027

How is C85.2 listed in the Alphabetic Index?

These are the routes through the Alphabetic Index that lead to C85.2. They show the wording a clinician may have documented, which often differs from the Tabular description.

Lymphoma › mediastinallarge B-cell (of) (malignant)

Excludes1 — never code together — inherited from C85

The conditions below can never be reported together with C85.2 on the same claim. An Excludes1 note means the two conditions cannot occur in the same patient, so reporting both is a coding error.

other specified types of T/NK-cell lymphoma (C86.-)
personal history of non-Hodgkin lymphoma (Z85.72)

Excludes2 — not included here — inherited from C81-C96

The conditions below are not part of C85.2, but a patient may have both at the same time. When documentation supports it, C85.2 and the excluded code may both be reported.

Kaposi's sarcoma of lymph nodes (C46.3)
secondary and unspecified neoplasm of lymph nodes (C77.-)
secondary neoplasm of bone marrow (C79.52)
secondary neoplasm of spleen (C78.89)

What codes fall under C85.2? (11)

How long has C85.2 existed?

C85.2 has been in ICD-10-CM since at least FY2016, the earliest fiscal year on record here.

Derived from the official order files for FY2016–FY2026. FY2017 and FY2020 publish no order file, so those years are not covered.

Which conditions are coded to C85.2?

ICD-10 code for Lymphoma