Skip to content
Dx

ICD-10-CM 2027 diagnosis code

K82.A2Perforation of gallbladder in cholecystitis

✓ Billable / specificCC — complication/comorbidityManifestation — not principal

K82.A2 is a valid, billable ICD-10-CM code for perforation of gallbladder in cholecystitis. It can be reported on claims for dates of service from October 1, 2026 – September 30, 2027.

Code last changed in FY2019 (effective October 1, 2018). Source: official FY2027 ICD-10-CM release from CDC/NCHS and CMS. Page updated September 29, 2026. About our data

About K82.A2

K82.A2 is the ICD-10-CM diagnosis code for perforation of gallbladder in cholecystitis. It belongs to category K82 (other diseases of gallbladder), block K80-K87 (disorders of gallbladder, biliary tract and pancreas) and chapter 11 (diseases of the digestive system). It is billable, so it can be reported on its own for dates of service from October 1, 2026 through September 30, 2027.

Within K82.A (disorders of gallbladder in diseases classified elsewhere), K82.A2 is specifically for perforation of gallbladder in cholecystitis. Related codes cover gangrene of gallbladder in cholecystitis (K82.A1).

As a secondary diagnosis it is a CC (complication or comorbidity), which can move an inpatient stay into the "with CC" MS-DRG of its family, unless the principal diagnosis excludes it.

In MS-DRG v44.0, it is part of the grouping logic for DRG 444 (Disorders of the Biliary Tract with MCC, relative weight 1.6665), DRG 445 (Disorders of the Biliary Tract with CC, relative weight 1.0872) and DRG 446 (Disorders of the Biliary Tract without CC/MCC, relative weight 0.8124), in MDC 07 (Diseases and Disorders of the Hepatobiliary System and Pancreas), as a principal or secondary diagnosis. The DRG a claim lands in depends on the principal diagnosis, procedures and any CC/MCC secondary diagnoses.

It is a manifestation code, so it describes the effect of an underlying disease and can't be the principal diagnosis. Code the underlying condition first.

It was added in FY2019, effective October 1, 2018.

Notes that apply from higher levels

Instructions written at a parent level also apply to K82.A2.

› From K82.A Disorders of gallbladder in diseases classified elsewhere
Code first
› From K82 Other diseases of gallbladder
Excludes1
  • nonvisualization of gallbladder (R93.2)
  • postcholecystectomy syndrome (K91.5)

Broader instructions also apply from Chapter 11: Diseases of the digestive system.

Alphabetic index entries

1 entries

Terms in the official ICD-10-CM index that lead to K82.A2.

Codes whose notes reference K82.A2

MS-DRG v44.0 grouping

All DRGs →

Inpatient MS-DRGs this diagnosis can group to, as the principal or a secondary diagnosis, depending on the rest of the claim.

Code history

  1. 2016
  2. 2017
  3. 2018
  4. 2019
  5. 2020
  6. 2021
  7. 2022
  8. 2023
  9. 2024
  10. 2025
  11. 2026
  12. 2027
  • FY2019 (effective 10/1/2018): Added
  • No changes since FY2019.

Common questions about K82.A2

Is K82.A2 billable?

Yes. K82.A2 is a billable/specific ICD-10-CM code valid for FY2027 (October 1, 2026 – September 30, 2027).

Can K82.A2 be used as a principal diagnosis?

No. It is a manifestation code, so it describes the effect of an underlying disease and can't be the principal diagnosis. Code the underlying condition first.

Is K82.A2 a CC or MCC?

K82.A2 is a CC (complication or comorbidity) under MS-DRG v44.0, unless excluded by the principal diagnosis.

What DRG does K82.A2 group to?

K82.A2 is used in the MS-DRG v44.0 logic for MS-DRG 444 (Disorders of the Biliary Tract with MCC), MS-DRG 445 (Disorders of the Biliary Tract with CC) and MS-DRG 446 (Disorders of the Biliary Tract without CC/MCC). Which one applies depends on whether it is the principal diagnosis and on the rest of the claim.