Diagnosis Code

K65.9 PERITONITIS, UNSPECIFIED


Code Information

Diagnosis Code: K65.9

Short Description: Peritonitis, unspecified

Long Description: Peritonitis, unspecified

The code K65.9 is VALID for claim submission

Code Classification:

  • Diseases of the digestive system (K00–K95)
    • Diseases of peritoneum and retroperitoneum (K65-K68)
      • Peritonitis (K65)
        • K65.9 Peritonitis, unspecified

Code Version: 2022 ICD-10-CM


Synonyms

  • Acute infectious peritonitis
  • Acute localized peritonitis caused by infection
  • Aseptic peritonitis
  • Bacterial peritonitis
  • Fat necrosis of peritoneum
  • Fibrinous peritonitis
  • Infectious peritonitis
  • Mesenteric fat necrosis
  • Mesenteric peritonitis with mesenteric fat necrosis
  • Peritonitis
  • Pneumococcal peritonitis
  • Postoperative peritonitis
  • Primary peritonitis
  • Serositis
  • Ventriculoperitoneal shunt-associated peritonitis

Diagnostic Related Group(s)

The code K65.9 is grouped in the following Diagnostic Related Group(s) (MS-DRG v39.0)
  • Major Gastrointestinal Disorders And Peritoneal Infections With Mcc (371)
  • Major Gastrointestinal Disorders And Peritoneal Infections With Cc (372)
  • Major Gastrointestinal Disorders And Peritoneal Infections Without Cc/mcc (373)

References to Index of Diseases and Injuries

The code K65.9 has the following ICD-10-CM references to the Index of Diseases and Injuries
  • Inclusion Terms:
    • Bacterial peritonitis NOS

Crosswalk Information

ICD-10 Code ICD-9 Code ICD-9 Description
K65.9 Right Arrow 567.9 Peritonitis NOS

This ICD-10 to ICD-9 data is based on the 2018 General Equivalency Mapping (GEM) files published by the Centers for Medicare & Medicaid Services (CMS) for informational purposes only. The data is not an ICD-10 conversion tool and doesn’t guarantee clinical accuracy.

Similar Codes

ICD-10 Code ICD-10 Description
K65 Peritonitis
K65.0 Generalized (acute) peritonitis
K65.1 Peritoneal abscess
K65.2 Spontaneous bacterial peritonitis
K65.3 Choleperitonitis
K65.4 Sclerosing mesenteritis
K65.8 Other peritonitis


This page was last updated on: 10/1/2023