Catalog
Functional oesophageal or gastroduodenal disorders
Link to WHO Definition
Functional oesophageal or gastroduodenal disorders – http://id.who.int/icd/entity/197587246
This group incorporates oesophageal and gastroduodenal disorders which principally present unpleasant upper gastrointestinal complaints without apparent morphological changes of oesophagus and gastroduodenum.