2026 ICD-10-CM Diagnosis Code K80.81Other cholelithiasis with obstruction

ICD-10-CM Codes›K00–K95›K80-K87›K80

ICD-10-CM K80.81
CMSSource: CMS FY 2026 ICD-10-CM dataset · Effective Oct 1, 2025 – Sep 30, 2026

K80.81 is a billable ICD-10-CM diagnosis code for other cholelithiasis with obstruction. It is valid on HIPAA claims for fiscal year 2026 (October 1, 2025 through September 30, 2026) and groups to MS-DRG 444 through 446. Coders also document this condition as cholelithiasis with obstruction. In AHRQ's Clinical Classifications Software (CCSR), this diagnosis falls under Biliary tract disease.

Code Identity

ICD-10-CM Code
K80.81
Billable Status
Yes — Valid for Submission
Code Describes
Other cholelithiasis with obstruction
Short Description
Other cholelithiasis with obstruction
Same as the full description in the CMS dataset.
Parent Code
K80.8
Other cholelithiasis

Code Classification

ChapterK00–K95Diseases of the digestive system
SectionK80-K87Disorders of gallbladder, biliary tract and pancreas
CategoryK80Cholelithiasis
This CodeK80.81Other cholelithiasis with obstruction

Approximate SynonymsGuidance

Alternate terms and clinical phrases that map to this code.

  • Cholelithiasis with obstruction

Index to Diseases and InjuriesGuidance

Alphabetical index entries that point to this code.

External Cause of Injuries IndexGuidance

References for this code in the External Cause of Injuries Index.

    • Calculus, calculi, calculous
      • biliary
        • specified NEC
          • with obstruction
    • Calculus, calculi, calculous
      • hepatobiliary
        • with obstruction
    • Cholelithiasis(cystic duct) (gallbladder) (impacted) (multiple)
      • specified NEC
        • with obstruction
    • Gallstone(colic) (cystic duct) (gallbladder) (impacted) (multiple)
      • specified NEC
        • with obstruction

Clinical ClassificationClinical

AHRQ’s CCSR groups this code into broader clinical categories.

CCSR DIG017
Biliary tract disease
Default principal diagnosis: inpatient Yes · outpatient Yes

Clinical InformationClinical

  • Choledocholithiasis

    presence or formation of gallstones in the common bile duct.

  • Cholelithiasis

    presence or formation of gallstones in the biliary tract, usually in the gallbladder (cholecystolithiasis) or the common bile duct (choledocholithiasis).

Patient EducationClinical

Gallstones

Your gallbladder is a pear-shaped organ under your liver. It stores bile, a fluid made by your liver to digest fat. As your stomach and intestines digest food, your gallbladder releases bile through a tube called the common bile duct. The duct connects your gallbladder and liver to your small intestine.

Read the full article at MedlinePlus

Courtesy of MedlinePlus, a service of the U.S. National Library of Medicine.

Convert K80.81 to ICD-9-CMHistory

The closest ICD-9-CM equivalents under the General Equivalence Mappings.

ICD-9-CM
574.41 Choledochlith/gb NEC-obs
Approximate The match is approximate rather than exact.

Code HistoryHistory

FY 2016AddedAdded to the ICD-10-CM code setEffective October 1, 2015, the first year of ICD-10-CM.
FY 2017–2025No changes
FY 2026CurrentCurrent code set, no changesEffective October 1, 2025 through September 30, 2026.

Questions About K80.81Overview

Is K80.81 (Other cholelithiasis) a billable code?

Yes. This is a billable ICD-10-CM code, specific enough to report other cholelithiasis with obstruction on HIPAA-covered claims from October 1, 2025 through September 30, 2026.

What MS-DRG does K80.81 group to?

When other cholelithiasis with obstruction is the principal diagnosis on an inpatient stay, it groups to MS-DRG 444, 445, 446, with relative weights from 0.8273 to 1.6709 depending on complications. Higher weights mean higher Medicare reimbursement.

What is the ICD-9 equivalent of K80.81?

Under the General Equivalence Mappings, other cholelithiasis with obstruction converts to ICD-9-CM 574.41 (choledochlith/gb NEC-obs). The mapping is approximate, so confirm the match fits the documentation.

Footnotes

[1] Chronic - a chronic condition code indicates a condition lasting 12 months or longer and its effect on the patient based on one or both of the following criteria:

  • The condition results in the need for ongoing intervention with medical products,treatment, services, and special equipment
  • The condition places limitations on self-care, independent living, and social interactions.