K12.3: Oral mucositis (ulcerative)

Oral mucositis (ulcerative) is a painful condition that affects the mouth. It involves inflammation and ulcers in the mucous lining of the mouth, which can cause discomfort or difficulty eating, speaking, and swallowing. Oral mucositis can develop due to various triggers, with common ones being treatments for cancer such as radiation and chemotherapy. Other causes may include certain diseases, medications, and poor oral hygiene. The progression of this condition begins with a feeling of dry mouth and soreness, advancing to visible redness and swelling before ulcers eventually form. It's important to note that while oral mucositis can be felt anywhere in the mouth, the presence of these ulcers does not necessarily signify a more serious underlying condition, although it can significantly impact a person's quality of life.

Patient Disclaimer

The information provided on this page is for general educational purposes only. It is not intended for self-diagnosis and does not replace professional medical advice. Always consult your doctor or a qualified healthcare provider with any questions or concerns about your health.

If you see an ICD diagnosis code (e.g., on a medical report), be aware that doctors may also include additional indicators to express diagnostic certainty. Only a healthcare professional can interpret these codes accurately in the context of your individual case.

For a complete understanding of your condition and what the diagnosis means for you, please speak directly with your doctor.