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C86

C86: Other specified types of T/NK-cell lymphoma

Non-billable headerICD-10-CM

C86 is a non-billable header ICD-10-CM code for other specified types of t/nk-cell lymphoma. It cannot be billed on its own: choose one of the more specific child codes below.

Excludes1: never code together

These conditions cannot occur together. Billing both on the same encounter is a denial.

  • 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-)

Other codes that can never be billed with C86

Their own Excludes1 notes name this code, so the conflict is not listed above.

  • D76Other specified diseases with participation of lymphoreticular and reticulohistiocytic tissue
  • C77Secondary and unspecified malignant neoplasm of lymph nodes
  • C84.7Anaplastic large cell lymphoma, ALK-negative
  • C84.ZOther mature T/NK-cell lymphomas
  • C85Other specified and unspecified types of non-Hodgkin lymphoma

Risk adjustment

No CMS-HCC V28 category: this code does not change a RAF score.

Code history

Unchanged in every release from FY2024 to FY2027.

Code to one of these instead C86

7 child codes. Green means billable.

ICD-10-CMFY2027· effective October 1, 2026

Loaded directly from the CMS/NCHS ICD-10-CM public-domain release: see data sources and our editorial policy. If this page disagrees with the CMS tabular list, this page is wrong. Reference information for professional coders; not medical or billing advice.