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Medical Code Search: "K65"

Results for “K65” from ICD-10-CM. Code titles and billable status are read from the published releases.

Current data releases:ICD-10-CM FY2027 · ICD-10-PCS FY2027 · HCPCS October 2026 · MS-DRG v44 · Medicare Code Editor v44.0 · NCCI PTP Q4 2026 · MUE Q4 2026 · NCD code lists 2026-01 · LCD export September 28, 2026 · All releases and sources

Recommended codes

The codes the published release carries for each pathway, each with the official evidence for the match.

Best matches

K65Peritonitis
ICD-10-CM · FY2027 · CURRENTExact codeCategoryNot billable

Exact ICD-10-CM code

Why this matched
  • The query is this code, as the registry prints it.
  • Exact ICD-10-CM code
  • The tabular carries it at category level.
  • 7 codes below, all billable in the tabular hierarchy.

7 codes below, all billable

View all 7 billable child codes →
K65-K6ADiseases of peritoneum, retroperitoneum and pelvis
ICD-10-CM · FY2027 · CURRENTChapter / blockNot billable

Code prefix · Code prefix match

Why this matched
  • The code begins with the characters searched for.
  • The tabular carries it at chapter / block level.
K65.0Generalized (acute) peritonitis
ICD-10-CM · FY2027 · CURRENTBillable

Under K65 Peritonitis

Code prefix · Code prefix match

Why this matched
  • The code begins with the characters searched for.
  • Sits under K65 Peritonitis in the ICD-10-CM tabular.
  • The tabular carries it at billable code level.
K65.1Peritoneal abscess
ICD-10-CM · FY2027 · CURRENTBillable

Under K65 Peritonitis

Code prefix · Code prefix match

Why this matched
  • The code begins with the characters searched for.
  • Sits under K65 Peritonitis in the ICD-10-CM tabular.
  • The tabular carries it at billable code level.
K65.2Spontaneous bacterial peritonitis
ICD-10-CM · FY2027 · CURRENTBillable

Under K65 Peritonitis

Code prefix · Code prefix match

Why this matched
  • The code begins with the characters searched for.
  • Sits under K65 Peritonitis in the ICD-10-CM tabular.
  • The tabular carries it at billable code level.

Why these results?

How MedCoder read the search, which code set answered first, and why these codes are shown.

What MedCoder understood

You searched
K65
Search type
Exact code
Primary registry
ICD-10-CM
9 results · 1 registryICD-10-CM: 9 matches
  • "K65" looks like a code, so the registries are checked for it first.

Search results are not a code assignment. Review the documentation, official coding instructions, and applicable rules before selecting a code.

Related codes

Neighbouring concepts, the primary code’s own tabular relationships, and every code set’s full results.

Explore K65

K65 Peritonitis — what its code page carries, from the official tables.

Hierarchy7· 7 billableExcludes123Use Additional Code3Code Also1Referenced by other codes1Coding guides1Code history1CompareClaim Check

Related concepts, from K65's tabular notes

Excludes1 · 6 of 23

Use Additional Code

Code Also

ICD-10-CM: 9 matches

See all in ICD-10-CM →

5 of them are shown above under Best matches.

K65.3Choleperitonitis
ICD-10-CM · FY2027 · CURRENTBillable

Under K65 Peritonitis

Code prefix

K65.4Sclerosing mesenteritis
ICD-10-CM · FY2027 · CURRENTBillable

Under K65 Peritonitis

Code prefix

K65.8Other peritonitis
ICD-10-CM · FY2027 · CURRENTBillable

Under K65 Peritonitis

Code prefix

Official source

Code titles, billable status and tabular instructions on this page are read from the published release files in force today: ICD-10-CM FY2027 (CMS and CDC). Open a code to see its official instructions quoted as published, the release and file it came from, its relationships and its change history. A search result is MedCoder’s match of your words to those files, not a code assignment.

All data sources and release datesHow to read the labels