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ICD-10-CM Code K81.0
Acute cholecystitis

Billable Code
Billable codes are sufficient justification for admission to an acute care hospital when used a principal diagnosis.
| ICD-10 from 2011 - 2016

K81.0 is a billable ICD code used to specify a diagnosis of acute cholecystitis. A 'billable code' is detailed enough to be used to specify a medical diagnosis.

The ICD code K81 is used to code Cholecystitis

Cholecystitis (Greek, -cholecyst, "gallbladder", combined with the suffix -itis, "inflammation") is inflammation of the gallbladder. Although most people with gallstones do not have symptoms and will not go on to develop cholecystitis, cholecystitis occurs most commonly due to blockage of the cystic duct with gallstones (cholelithiasis). This blockage causes a buildup of bile in the gallbladder and increased pressure within the gallbladder, leading to right upper abdominal pain. Concentrated bile, pressure, and sometimes bacterial infection irritate and damage the gallbladder wall, causing inflammation and swelling of the gallbladder. Inflammation and swelling of the gallbladder can reduce normal blood flow to areas of the gallbladder, which can lead to cell death due to inadequate oxygen.

Specialty: General Surgery
MeSH Codes: D002764, D002764
ICD 9 Codes: 575.0, 575.1

Cholecystitis develops when the gallbladder becomes inflamed.

Source: Wikipedia

Coding Notes for K81.0 Info for medical coders on how to properly use this ICD-10 code

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.
Abscess of gallbladder
Emphysematous (acute) cholecystitis
Empyema of gallbladder
Gangrene of gallbladder
Gangrenous cholecystitis
Suppurative cholecystitis

MS-DRG Mapping

  • DRG Group #444-446 - Disorders of the biliary tract with MCC.
  • DRG Group #444-446 - Disorders of the biliary tract with CC.
  • DRG Group #444-446 - Disorders of the biliary tract without CC or MCC.

Related Concepts SNOMET-CT

  • Acute cholecystitis without calculus (disorder)
  • Pneumocholecystitis (disorder)


Acute cholecystitis (exact match)

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 575.0 was previously used, K81.0 is the appropriate modern ICD10 code.

Parent Code: K81 - Cholecystitis

** This Document Provided By ICD.Codes **
Source: http://icd.codes/icd10cm/K810