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C86

Non-billable

Other specified types of T/NK-cell lymphoma

C86 is the ICD-10-CM code for Other specified types of T/NK-cell lymphoma. It is a non-billable category code — use a more specific child code such as C86.0 for billing.

Status
Header (non-billable)
Chapter
C00-D49
Subcodes
7
Edition
FY2026

C00-D49 Neoplasms

What this means — in plain language

MedlinePlus · NIH

Lymphoma is a cancer of a part of the immune system called the lymph system. There are many types of lymphoma. One type is Hodgkin disease . The rest are called non-Hodgkin lymphomas. Non-Hodgkin lymphomas begin when a type of white blood cell, called a T cell or B cell, becomes abnormal. The cell divides again and again, making more and more abnormal cells. These abnormal cells can spread to almost any other part…

Read more about Lymphoma at MedlinePlus ↗

Source: U.S. National Library of Medicine (MedlinePlus). Informational only — not medical advice.

Excludes1 — not coded here

  • •anaplastic large cell lymphoma, ALK negative (C84.7-)
  • •anaplastic large cell lymphoma, ALK positive (C84.6-)
  • •mature T/NK-cell lymphomas (C84.-)
  • •other specified types of non-Hodgkin lymphoma (C85.8-)

Frequently asked questions

What is ICD-10 code C86?
C86 is the ICD-10-CM code for "Other specified types of T/NK-cell lymphoma". It falls under C00-D49 Neoplasms.
Is C86 a billable code?
No — C86 is a non-billable header code. Use a more specific child code (such as C86.0) for billing.
What are the subcodes of C86?
C86 has 7 more specific child codes, including C86.0, C86.1, C86.2.
What is excluded from C86?
Excludes1 (not coded here): anaplastic large cell lymphoma, ALK negative (C84.7-); anaplastic large cell lymphoma, ALK positive (C84.6-); mature T/NK-cell lymphomas (C84.-); other specified types of non-Hodgkin lymphoma (C85.8-).

Source: CMS ICD-10-CM FY2026. For informational purposes only — not medical advice. See our medical disclaimer.

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