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ICD-10-CM 2027

ICD-10 code for lymphosarcoma

C85.9

Non-Hodgkin lymphoma, unspecified

Header — needs a more specific code

From the official ICD-10-CM alphabetic index entry “Lymphosarcoma (diffuse)”. Page updated September 29, 2026.

About coding lymphosarcoma

The ICD-10-CM code for lymphosarcoma is C85.9 (Non-Hodgkin lymphoma, unspecified).

Within C85, choose C85.9 (Non-Hodgkin lymphoma, unspecified) only when documentation doesn't support a more specific option: unspecified B-cell lymphoma (C85.1), mediastinal (thymic) large B-cell lymphoma (C85.2) and other specified types of non-Hodgkin lymphoma (C85.8).

To report this condition, pick the subcode that matches the documentation: C85.90 (unspecified site), C85.91 (lymph nodes of head, face, and neck), C85.92 (intrathoracic lymph nodes), C85.93 (intra-abdominal lymph nodes), C85.94 (lymph nodes of axilla and upper limb), C85.95 (lymph nodes of inguinal region and lower limb), C85.96 (intrapelvic lymph nodes), C85.97 (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.

Common questions about lymphosarcoma ICD-10 codes

What is the ICD-10 code for lymphosarcoma?

C85.9 — Non-Hodgkin lymphoma, unspecified (a header code; report a more specific subcode).

Is C85.9 billable?

No. C85.9 is a header code. Report one of its more specific subcodes instead.