C84
Non-billableMature T/NK-cell lymphomas
C84 is the ICD-10-CM code for Mature T/NK-cell lymphomas. It is a non-billable category code — use a more specific child code such as C84.0 for billing.
- Status
- Header (non-billable)
- Chapter
- C00-D49
- Subcodes
- 8
- Edition
- FY2026
C00-D49 Neoplasms
Excludes1 — not coded here
- •personal history of non-Hodgkin lymphoma (Z85.72)
Frequently asked questions
- What is ICD-10 code C84?
- C84 is the ICD-10-CM code for "Mature T/NK-cell lymphomas". It falls under C00-D49 Neoplasms.
- Is C84 a billable code?
- No — C84 is a non-billable header code. Use a more specific child code (such as C84.0) for billing.
- What is excluded from C84?
- Excludes1 (not coded here): personal history of non-Hodgkin lymphoma (Z85.72).
Source: CMS ICD-10-CM FY2026. For informational purposes only — not medical advice. See our medical disclaimer.
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