ICD-10-CM › K00-K95 › K65-K6A › K66 Other disorders of peritoneum › K66.9
Disorder of peritoneum, unspecified
ValidICD-10-CM diagnosis code.
Valid for claims with a date of service in the current code year.
What has happened to this code
Every change the publisher made, from 2007 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.
- FY2007 Added to the draft code set draft Disorder of peritoneum, unspecified
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 K66 Other disorders of peritoneum
Excludes2 - not included here
- ascites (R18.-)
- peritoneal effusion (chronic) (R18.8)
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.
- Disease, diseased > peritoneum
Codes in the same group
| Code | Description | Status |
|---|---|---|
| K66.0 | Peritoneal adhesions (postprocedural) (postinfection) | Valid |
| K66.1 | Hemoperitoneum | Valid |
| K66.8 | Other specified disorders of peritoneum | Valid |