2007 ICD-9-CM Procedure 92.04 Gastrointestinal scan and radioisotope function study A diagnostic test in which vitamin B12 is tagged with radioactive cobalt, taken orally, and gastrointestinal absorption is determined via measurement of the amount of radioactivity in a 24-hour urine collection. 92.04 is a specific code that can be used to specify a procedure 92.04 contains 6 index entries View the full Volume 3 92.* hierarchy 92.04 also known as: Radio-cobalt B12 Schilling test Radio-iodinated triolein study Index entries containing 92.04: Scan, scanning radioisotope bowel 92.04 gastrointestinal 92.04 intestine 92.04 pancreatic 92.04 Study radio-iodinated triolein 92.04 Test, testing (for) radio-cobalt B12 Schilling 92.04