C85.9

Non-billable

Non-Hodgkin lymphoma, unspecified

C85.9 is the ICD-10-CM code for Non-Hodgkin lymphoma, unspecified. It is a non-billable category code — use a more specific child code such as C85.90 for billing.

Status
Header (non-billable)
Chapter
C00-D49
Parent
C85
Subcodes
11
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.

Includes

  • Lymphoma NOS
  • Malignant lymphoma NOS
  • Non-Hodgkin lymphoma NOS

Frequently asked questions

What is ICD-10 code C85.9?
C85.9 is the ICD-10-CM code for "Non-Hodgkin lymphoma, unspecified". It falls under C00-D49 Neoplasms.
Is C85.9 a billable code?
No — C85.9 is a non-billable header code. Use a more specific child code (such as C85.90) for billing.
What are the subcodes of C85.9?
C85.9 has 11 more specific child codes, including C85.90, C85.91, C85.92.

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

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