2025 ICD-10-CM Diagnosis Code C86.0

Extranodal NK/T-cell lymphoma, nasal type

C86.0 should not be used for reimbursement purposes as there are multiple codes below it that contain a greater level of detail.
ICD-10-CM C86.0 is a new 2025 ICD-10-CM code that became effective on October 1, 2024.
This is the American ICD-10-CM version of C86.0 – other international versions of ICD-10 C86.0 may differ.

The following code(s) above C86.0 contain annotation back-references

that may be applicable to C86.0:

Approximate Synonyms

Clinical Information

A malignant lymphoid neoplasm composed of ebv-positive nk/t cells arranged in an angiocentric pattern.
An aggressive, predominantly extranodal, mature t-cell non-hodgkin lymphoma. It is characterized by an often angiocentric and angiodestructive cellular infiltrate composed of ebv positive nk/t cells. The nasal cavity is the most common site of involvement. Patients often present with midfacial destructive lesions (lethal midline granuloma). The disease may disseminate rapidly to various anatomic sites including the gastrointestinal tract, skin, testis, and cervical lymph nodes. It is also known as angiocentric t-cell lymphoma. The term “polymorphic reticulosis” has been widely used to describe the morphologic changes seen in this type of lymphoma. However, the latter term may also apply to lymphomatoid granulomatosis, which is an angiocentric and angiodestructive ebv positive b-cell lymphoproliferative disorder.

Code History

2016 (effective 10/1/2015): New code (first year of non-draft ICD-10-CM)
2017 (effective 10/1/2016): No change
2018 (effective 10/1/2017): No change
2019 (effective 10/1/2018): No change
2020 (effective 10/1/2019): No change
2021 (effective 10/1/2020): No change
2022 (effective 10/1/2021): No change
2023 (effective 10/1/2022): No change
2024 (effective 10/1/2023): No change
2025 (effective 10/1/2024): Deleted code
2025 (effective 10/1/2024): New code

Code annotations containing back-references to C86.0:

Diagnosis Index entries containing back-references to C86.0:

Arthritis, arthritic (acute) (chronic) (nonpyogenic) (subacute) M19.90
- in (due to)
  - reticulosis, malignant C86.0- – see also subcategory M14.8-
Lymphoma (of) (malignant) C85.90
- extranodal NK/T-cell, nasal type C86.0-
Reticulosis (skin)
- malignant C86.0- (midline)
- polymorphic C86.0-