K80.18

Calculus of gallbladder with other cholecystitis without obstruction

Billable code

This code does not map to a risk-adjusting HCC in the loaded models.

Coding notes

Excludes 1 never coded together · Excludes 2 may co-exist

Inherited from K80.1Calculus of gallbladder with other cholecystitis
Use additional

code if applicable for associated gangrene of gallbladder (K82.A1), or perforation of gallbladder (K82.A2)

Inherited from K80Cholelithiasis
Excludes 1

retained cholelithiasis following cholecystectomy (K91.86)

Inherited from chapter 11Diseases of the digestive system
Excludes 2

certain conditions originating in the perinatal period (P04-P96) certain infectious and parasitic diseases (A00-B99) complications of pregnancy, childbirth and the puerperium (O00-O9A) congenital malformations, deformations and chromosomal abnormalities (Q00-Q99) endocrine, nutritional and metabolic diseases (E00-E88) injury, poisoning and certain other consequences of external causes (S00-T88) neoplasms (C00-D49) symptoms, signs and abnormal clinical and laboratory findings, not elsewhere classified (R00-R94)

Official Guidelines for K80.18

FY 2026 ›
I.C.11Chapter-specific guidanceChapter 11: Diseases of the Digestive System (K00-K95)

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