Percutaneous transhepatic cholangiography

Percutaneous transhepatic cholangiography, percutaneous hepatic cholangiogram is a radiological technique used to visualize the anatomy of the biliary tract. A contrast medium is injected into a bile duct in the liver, after which X-rays are taken. It allows access to the biliary tree in cases where endoscopic retrograde cholangiopancreatography has been unsuccessful. Initially reported in 1937, the procedure became popular in 1952. Wikipedia

• Synonyms:  Percutaneous hepatic cholangiogram
• ICD-9-CM:  87.51
• OPS-301 code:  3-13c.1