ICD-10 Code K76.6 – Portal hypertension (2026): Diagnosis, Symptoms & Billing Guide
2026 ICD-10-CM Diagnosis Code K76.6 – Portal hypertension
What it is
Portal hypertension means abnormally high pressure in the portal venous system, which carries blood from the digestive organs to the liver. It is usually a complication of liver disease, especially cirrhosis.
Clinical signs
Common findings include enlarged veins, ascites, splenomegaly, and varices. Clinical features vary; refer to documentation for the underlying cause and any related complications.
When to use this code
Use K76.6 when the provider documents portal hypertension as a diagnosis or complication. It may be assigned with chronic liver disease, cirrhosis, or other portal venous obstruction when the record clearly identifies portal hypertension. Code the documented condition, not suspected hypertension alone.
Do not use for
Do not use this code for general hypertension or isolated liver disease without portal hypertension. Check documentation if the note only mentions varices, ascites, or portal vein thrombosis without stating portal hypertension.
Coding tip
Assign K76.6 only when portal hypertension is explicitly documented and supported by the record.