Motility disorder of cervical or upper oesophagus

**Definition:** Motility disorder of cervical and upper oesophagus is a condition characterised by choke, swallow air, regurgitate fluid into the nose, or experience discomfort in swallowing food due to incompetence of upper oesophageal sphincter.

**Inclusions:** - Dyskinesia of cervical and upper oesophagus