Blastic NK-cell lymphoma, in remission

ValidICD-10-CM diagnosis code.

Valid for claims with a date of service in the current code year.

Valid FY2025 onwards.

What has happened to this code

Every change the publisher made, from 2025 to now.

FY2025 Added to the code set Blastic NK-cell lymphoma, in remission

Official coding rules

Published by CDC for FY2027. A rule attached to a category binds every code beneath it, so the rules inherited from this code's ancestors are shown with the code they come from.

Inherited from C86 Other specified types of T/NK-cell lymphoma

Excludes1 - never coded here

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-)

Inherited from the C81-C96 section Malignant neoplasms of lymphoid, hematopoietic and related tissue (C81-C96)

Excludes2 - not included here

Kaposi's sarcoma of lymph nodes (C46.3)
secondary and unspecified neoplasm of lymph nodes (C77.-)
secondary neoplasm of bone marrow (C79.52)
secondary neoplasm of spleen (C78.89)

How CDC's index refers to this code

Wording from the official alphabetic index. Much of it appears nowhere in the code description, which is why a search for the everyday phrase so often finds nothing.

Lymphomatosis
Lymphosarcoma
Lymphoma > non-Hodgkin
Non-Hodgkin lymphoma NEC
Lymphoma > blastic NK-cell
Lymphoma > blastic plasmacytoid dendritic cell neoplasm

Codes in the same group

Code	Description	Status
C86.40	Blastic NK-cell lymphoma not having achieved remission	Valid