ICD-10-CM › C00-D49 › C81-C96 › C codes › C84

C84

Mature T/NK-cell lymphomas

Not billableICD-10-CM diagnosis code.

This code exists but cannot be submitted on its own. It groups the more specific codes beneath it.

A category header for its whole life, FY2016 onwards. It has never been valid for submission on its own.

Submit one of these 8 more specific codes instead:

  • C84.0 Mycosis fungoides (also a header)
  • C84.1 Sezary disease (also a header)
  • C84.4 Peripheral T-cell lymphoma, not elsewhere classified (also a header)
  • C84.6 Anaplastic large cell lymphoma, ALK-positive (also a header)
  • C84.7 Anaplastic large cell lymphoma, ALK-negative (also a header)
  • C84.9 Mature T/NK-cell lymphomas, unspecified (also a header)
  • C84.A Cutaneous T-cell lymphoma, unspecified (also a header)
  • C84.Z Other mature T/NK-cell lymphomas (also a header)

What has happened to this code

Every change the publisher made, from 2012 to now. Entries marked draft are from the pre-implementation releases: ICD-10 took effect on 1 October 2015, so nothing before FY2016 was ever valid on a claim.

  1. FY2012 Added to the draft code set draft Mature T/NK-cell lymphomas

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.

This code

Excludes1 - never coded here

  • personal history of non-Hodgkin lymphoma (Z85.72)

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)