All
 E01 Diagnosis D003933 +
 E01.370 Diagnostic Techniques and Procedures D019937 +
 E01.370.372 Diagnostic Techniques, Digestive System D003938 +
 E01.370.372.200 Cholangiography D002758 +
 E01.370.372.210 Cholecystography D002765 
 E01.370.372.300 Gastric Acidity Determination D005745 
 E01.370.372.310 Gastrointestinal Transit D005772 
 E01.370.372.450 Lactose Tolerance Test D007789 
 E01.370.372.460 Liver Function Tests D008111 
 E01.370.372.600 Pancreatic Function Tests D010186 
 E01.370.372.610 Portography D011172 
 E01.370.372.700 Sialography D012796 
 E01.370.372.250 Endoscopy, Digestive System D016145 +
 E01.370.372.230 Colonography, Computed Tomographic D023881