ICD-10-CM › C00-D49 › C81-C96 › C85 Other specified and unspecified... › C85.1

C85.1

Unspecified B-cell lymphoma

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 11 more specific codes instead:

  • C85.10 Unspecified B-cell lymphoma, unspecified site
  • C85.11 Unspecified B-cell lymphoma, lymph nodes of head, face, and neck
  • C85.12 Unspecified B-cell lymphoma, intrathoracic lymph nodes
  • C85.13 Unspecified B-cell lymphoma, intra-abdominal lymph nodes
  • C85.14 Unspecified B-cell lymphoma, lymph nodes of axilla and upper limb
  • C85.15 Unspecified B-cell lymphoma, lymph nodes of inguinal region and lower limb
  • C85.16 Unspecified B-cell lymphoma, intrapelvic lymph nodes
  • C85.17 Unspecified B-cell lymphoma, spleen
  • C85.18 Unspecified B-cell lymphoma, lymph nodes of multiple sites
  • C85.19 Unspecified B-cell lymphoma, extranodal and solid organ sites
  • C85.1A Unspecified B-cell lymphoma, in remission

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 Unspecified B-cell lymphoma

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 C85 Other specified and unspecified types of non-Hodgkin lymphoma

Excludes1 - never coded here

  • other specified types of T/NK-cell lymphoma (C86.-)
  • 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)

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.

Codes in the same group

CodeDescriptionStatus
C85.2 Mediastinal (thymic) large B-cell lymphoma Not billable
C85.8 Other specified types of non-Hodgkin lymphoma Not billable
C85.9 Non-Hodgkin lymphoma, unspecified Not billable