C86.6
⚠ Non-billable
Primary cutaneous CD30-positive T-cell proliferations
ICD-10-CM · FY2026 · Neoplasms
Code
C86.6
System
ICD-10-CM
Billable
No — use specific code
Effective
FY2026
Chapter
Neoplasms
Source
CMS / CDC NCHS
⚠ Verify before billing. Confirm against the current CMS/NCHS ICD-10-CM files and your payer's rules before claims submission.
Frequently asked questions
What is ICD-10 code C86.6?
ICD-10-CM code C86.6 represents Primary cutaneous CD30-positive T-cell proliferations. It is a non-billable header code requiring a more specific subcategory in the Neoplasms chapter, effective October 1, 2025 – September 30, 2026.
Is C86.6 billable?
No. C86.6 is a non-billable header. Select a more specific subcategory for claims submission.
What chapter is C86.6 in?
C86.6 belongs to the Neoplasms chapter (C00–D49) of ICD-10-CM.
Related codes in the C86 category
C86
Other specified types of T/NK-cell lymphoma
Non-billable
C86.0
Extranodal NK/T-cell lymphoma, nasal type
Non-billable
C86.1
Hepatosplenic T-cell lymphoma
Non-billable
C86.2
Enteropathy-type (intestinal) T-cell lymphoma
Non-billable
C86.3
Subcutaneous panniculitis-like T-cell lymphoma
Non-billable
C86.4
Blastic NK-cell lymphoma
Non-billable
C86.5
Angioimmunoblastic T-cell lymphoma
Non-billable
C86.00
Extranodal NK/T-cell lymphoma, nasal type not having achieved remission
Billable
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