Malignant neoplasm of gallbladder (C23) ICD-10-CM
The C23 code range covers malignant neoplasm of gallbladder with 1 ICD-10-CM diagnosis codes. 1 of them are billable and valid for claim submission in fiscal year 2026, and the category headers group them but cannot themselves be billed.
Codes in the C23 Range 1 codes · 1 billable
- C23 Malignant neoplasm of gallbladder
Clinical Terms in This Code Range
Definitions from the National Library of Medicine for conditions coded in the C23 range.
Acalculous Cholecystitis
Inflammation of the GALLBLADDER wall in the absence of GALLSTONES.
Biliary Dyskinesia
A motility disorder characterized by biliary COLIC, absence of GALLSTONES, and an abnormal GALLBLADDER ejection fraction. It is caused by gallbladder dyskinesia and/or SPHINCTER OF ODDI DYSFUNCTION.
Cholecystitis
Inflammation of the GALLBLADDER; generally caused by impairment of BILE flow, GALLSTONES in the BILIARY TRACT, infections, or other diseases.
Gallbladder
A storage reservoir for BILE secretion. Gallbladder allows the delivery of bile acids at a high concentration and in a controlled manner, via the CYSTIC DUCT to the DUODENUM, for degradation of dietary lipid.
Gallbladder Diseases
Diseases of the GALLBLADDER. They generally involve the impairment of BILE flow, GALLSTONES in the BILIARY TRACT, infections, neoplasms, or other diseases.
Gallbladder Emptying
A process whereby bile is delivered from the gallbladder into the duodenum. The emptying is caused by both contraction of the gallbladder and relaxation of the sphincter mechanism at the choledochal terminus.
Gallbladder Neoplasms
Tumors or cancer of the gallbladder.
About the C23 Code Range
The ICD-10 code C23 is specifically used to identify malignant neoplasm of the gallbladder, which refers to cancerous tumors originating in this organ. This code is essential for documenting gallbladder cancers in medical records and billing.
This code covers various types of primary gallbladder cancers, including those commonly known as carcinoma of the gallbladder and primary adenocarcinoma of the gallbladder. It also includes more specific forms such as primary squamous cell carcinoma of the gallbladder and extrahepatic biliary tract, and primary malignant mesenchymal neoplasms of the gallbladder. Recognizing these synonyms under C23 helps coders and clinicians correctly assign the code for conditions like local recurrence of malignant tumor of gallbladder or other malignancies linked to the biliary system. Hence, the ICD-10 code C23 represents all primary malignant tumors that arise directly from the gallbladder tissue, providing clear classification for diagnosis, treatment planning, and insurance purposes.
Questions About This Page
How many billable codes are in the C23 range?
Of the 1 codes in this range, 1 are billable and valid for claim submission from October 1, 2025 through September 30, 2026. Category header codes group them but cannot be reported on claims.
What does the C23 range classify?
The range classifies malignant neoplasm of gallbladder. Each code links to its own reference page with billing status, MS-DRG grouping, coding notes, and clinical information.
Related References
Source: CMS FY 2026 ICD-10-CM Tabular List and order file, effective October 1, 2025 through September 30, 2026.
