ICD-10-CM › R00-R99 › R50-R69 › R codes › R59

R59

Enlarged lymph nodes

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 3 more specific codes instead:

  • R59.0 Localized enlarged lymph nodes
  • R59.1 Generalized enlarged lymph nodes
  • R59.9 Enlarged lymph nodes, unspecified

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 Enlarged lymph nodes

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

  • lymphadenitis NOS (I88.9)
  • acute lymphadenitis (L04.-)
  • chronic lymphadenitis (I88.1)
  • mesenteric (acute) (chronic) lymphadenitis (I88.0)

Includes

  • swollen glands