ICD-10-CM › K00-K95 › K65-K6A › K codes › K66

K66

Other disorders of peritoneum

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 4 more specific codes instead:

  • K66.0 Peritoneal adhesions (postprocedural) (postinfection)
  • K66.1 Hemoperitoneum
  • K66.8 Other specified disorders of peritoneum
  • K66.9 Disorder of peritoneum, 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 Other disorders of peritoneum

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

Excludes2 - not included here

  • ascites (R18.-)
  • peritoneal effusion (chronic) (R18.8)