K20-K31: Diseases of oesophagus, stomach and duodenum

K23: Disorders of oesophagus in diseases classified elsewhere

Disorders of the esophagus related to diseases classified elsewhere, as suggested by the title, are health conditions affecting the esophagus (the tube connecting your mouth to your stomach) that are caused by other underlying diseases. These disorders can be caused by a wide range of diseases, including autoimmune diseases, infections, and systemic diseases affecting other parts of the body. Common symptoms of these disorders might include difficulty swallowing, heartburn, chest pain, or a sensation of food stuck in your throat. The progression of these disorders is largely dependent on the underlying disease causing it. The primary system affected is the digestive system, particularly the esophagus, but the effects can have a broader impact on the body if the root disease affects varying systems.