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Insertion of tube into vein, second order branch

Insertion of tube into right heart or main pulmonary artery

Insertion of tube into chest or arm artery, each first order branch

Insertion of tube into chest or arm artery, initial second order branch

Insertion of tube into chest or arm artery, additional second, third order and beyond

Insertion of tube into chest aorta for diagnosis or treatment with review by radiologist

Insertion of tube into extracranial artery for diagnosis or treatment with review by radiologist

Insertion of tube into external neck artery for diagnosis or treatment with review by radiologist

Insertion of tube into neck or brain artery for diagnosis or treatment with review by radiologist

Insertion of tube into abdominal, pelvic, or leg artery, additional second, third, and beyond