ICD-10 Code K83.9 – Disease of biliary tract, unspecified (2026): Diagnosis, Symptoms & Billing Guide
2026 ICD-10-CM Diagnosis Code K83.9 – Disease of biliary tract, unspecified
What it is
K83.9 is used for a biliary tract disorder when the record does not identify a more specific diagnosis. It covers disease involving the bile ducts or related biliary structures, but the exact condition is not named.
Clinical signs
Clinical features vary; refer to documentation. Common biliary complaints may include right upper quadrant pain, jaundice, or abnormal imaging findings, but the code itself does not confirm a specific cause.
When to use this code
Use K83.9 when the provider documents a disease of the biliary tract and no further detail is available. It is appropriate when the note is nonspecific, such as “biliary tract disease” or “bile duct disorder” without a defined subtype. If the chart later identifies a more specific condition, code that diagnosis instead.
Do not use for
Do not use this code for clearly documented gallbladder disease, pancreatitis, or a specific biliary diagnosis with its own ICD-10 code. Check documentation to avoid assigning an unspecified code when a more exact diagnosis is stated.
Coding tip
Query for specificity whenever the provider uses a broad biliary term, because K83.9 is best reserved for truly unspecified documentation.