ICD-10-CM › N00-N99 › N25-N29 › N codes › N26

N26

Unspecified contracted kidney

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:

  • N26.1 Atrophy of kidney (terminal)
  • N26.2 Page kidney
  • N26.9 Renal sclerosis, 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 Unspecified contracted kidney

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

  • contracted kidney due to hypertension (I12.-)
  • diffuse sclerosing glomerulonephritis (N05.8.-)
  • hypertensive nephrosclerosis (arteriolar) (arteriosclerotic) (I12.-)
  • small kidney of unknown cause (N27.-)

Inherited from the N25-N29 section Other disorders of kidney and ureter (N25-N29)

Excludes2 - not included here

  • disorders of kidney and ureter with urolithiasis (N20-N23)