All
 E01 Diagnosis D003933 +
 E01.370 Diagnostic Techniques and Procedures D019937 +
 E01.370.372 Diagnostic Techniques, Digestive System D003938 +
 E01.370.372.250 Endoscopy, Digestive System D016145 +
 E01.370.372.250.250 Endoscopy, Gastrointestinal D016099 +
 E01.370.372.250.250.200 Colonoscopy D003113 +
 E01.370.372.250.250.225 Duodenoscopy D004384 
 E01.370.372.250.250.325 Gastroscopy D005773 
 E01.370.372.250.250.600 Proctoscopy D011351