An aphthous ulcer is an ulcer in the mouth, caused by a break in the mucous membrane.

The ICD-9 code for aphthous stomatitis is 528.2. Aphthous stomatitis is another name for canker sores. It is not known what causes them.

canker sore

Pharyngitis is the medical name for a sore throat. Pharyngitis is contagious through direct contact with mucus, nasal discharge, or saliva.

Pharyngitis is the medical term that refers to a sore throat. Some common symptoms of pharyngitis include scratchiness, pain, coughing and difficulty swallowing.