ICD-10 code for Gallstones

The ICD-10-CM code for Gallstones is K80.20 (Calculus of gallbladder without cholecystitis without obstruction). The official index lists 39 more specific codes, so check the documentation for details such as type, cause, site or severity before settling on K80.20.

It is also searched as calculus of gallbladder.

Within K80.2, choose K80.20 (without obstruction) only when documentation doesn't support a more specific option: with obstruction (K80.21).

It is not a CC or MCC, so as a secondary diagnosis it doesn't change the MS-DRG severity level.

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.