ICD-10-CM Code K65.9
Peritonitis, unspecified
Billable Code
Billable codes are sufficient justification for admission to an acute care hospital when used a principal diagnosis.K65.9 is a billable ICD code used to specify a diagnosis of peritonitis, unspecified. A 'billable code' is detailed enough to be used to specify a medical diagnosis.
The ICD code K65 is used to code Peritonitis
Peritonitis is an inflammation of the peritoneum, the thin tissue that lines the inner wall of the abdomen and covers most of the abdominal organs. Peritonitis may be localized or generalized, and may result from infection (often due to rupture of a hollow abdominal organ as may occur in abdominal trauma or inflamed appendix) or from a non-infectious process.
| Specialty: | General Surgery |
| MeSH Code: | D010538 |
| ICD 9 Code: | 567 |
Coding Notes for K65.9 Info for medical coders on how to properly use this ICD-10 code
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Inclusion Terms:
Inclusion Terms
Inclusion Terms are a list of concepts for which a specific code is used. The list of Inclusion Terms is useful for determining the correct code in some cases, but the list is not necessarily exhaustive. - Bacterial peritonitis NOS
MS-DRG Mapping
- DRG Group #371-373 - Major gastrointestinal disorders and peritoneal infections with MCC.
- DRG Group #371-373 - Major gastrointestinal disorders and peritoneal infections with CC.
- DRG Group #371-373 - Major gastrointestinal disorders and peritoneal infections without CC or MCC.
- DRG Group #793 - Full term neonate with major problems.
Coding Advice SNOMET-CT
- Consider additional code to identify specific condition or disease
ICD-10-CM Alphabetical Index References for 'K65.9 - Peritonitis, unspecified'
The ICD-10-CM Alphabetical Index links the below-listed medical terms to the ICD code K65.9. Click on any term below to browse the alphabetical index.
Equivalent ICD-9 Code GENERAL EQUIVALENCE MAPPINGS (GEM)
This is the official exact match mapping between ICD9 and ICD10, as provided by the General Equivalency mapping crosswalk. This means that in all cases where the ICD9 code 567.9 was previously used, K65.9 is the appropriate modern ICD10 code.
Parent Code: K65 - Peritonitis