ICD-10 Code D13.5 – Benign neoplasm of extrahepatic bile ducts (2026): Diagnosis, Symptoms & Billing Guide
2026 ICD-10-CM Diagnosis Code D13.5 – Benign neoplasm of extrahepatic bile ducts
What it is
D13.5 identifies a noncancerous tumor arising in the extrahepatic bile ducts, which carry bile outside the liver. Use it when documentation clearly states a benign neoplasm in this location.
Clinical signs
Clinical features vary; refer to documentation. Patients may have signs related to bile duct obstruction, such as jaundice, abdominal discomfort, or abnormal imaging findings, but the record must support a benign neoplasm diagnosis.
When to use this code
Use D13.5 when the provider documents a benign tumor of the common bile duct or other extrahepatic bile duct segment. It also fits pathology or imaging reports confirming a nonmalignant neoplasm in this site. Check documentation if the lesion is described only as a mass, stricture, or polyp without a final diagnosis.
Do not use for
Do not use this code for malignant neoplasms, dysplasia, or unspecified biliary obstruction. If the chart does not confirm a benign neoplasm, check documentation before assigning D13.5.
Coding tip
Code the exact anatomic site and confirm the word “benign” or equivalent documentation before assigning D13.5.