C86.0 Extranodal NK/T-cell lymphoma, nasal type
The ICD-10-CM code for Extranodal NK/T-cell lymphoma, nasal type is C86.0 (FY2026). It is a non-billable category code — select a more specific code below for claims.
Classification
- Chapter
- 2: Neoplasms (C00-D49)
- Section
- C81-C96: Malignant neoplasms of lymphoid, hematopoietic and related tissue (C81-C96)
- Category C86
- 22 codes (14 billable)
- FY2026 Status
- Stable since FY2024
Also Known As
ICD-10-CM Alphabetic Index entries that lead to C86.0:
- Reticulosis (skin) › polymorphic
- Reticulosis (skin) › malignant (midline)
- Lymphoma (of) (malignant) › extranodal NK/T-cell, nasal type
- Arthritis, arthritic (acute) (chronic) (nonpyogenic) (subacute) › in (due to) › reticulosis, malignant
U.S. Hospital Utilization
- An estimated 395 U.S. inpatient stays in 2023 included C86.0 among the documented diagnoses.
- 115 stays listed it as the principal diagnosis.
Source: National Inpatient Sample (NIS), Healthcare Cost and Utilization Project (HCUP), Agency for Healthcare Research and Quality, 2016–2023. National survey-weighted estimates.
Official Coding Guidelines
Tx of primary site (TOC entry)a. Admission/Encounter for treatment of primary site ............................................................. 33
Tx of secondary site (TOC entry)b. Admission/Encounter for treatment of secondary site .......................................................... 33
Source: CMS — ICD-10-CM Official Guidelines for Coding and Reporting, FY2026