Cancrum oris

This code represents cancrum oris, also known as Noma, a rapidly progressive, polymicrobial, opportunistic infection that causes severe gangrenous destruction of orofacial tissues. It typically begins as a gingival ulceration and can quickly spread to involve the lips, cheeks, and jaw, leading to extensive tissue loss and disfigurement.

Use this code for documented cases of cancrum oris, characterized by acute necrotizing stomatitis progressing to gangrene of the mouth and face. This diagnosis is typically supported by clinical examination revealing characteristic lesions, often in malnourished or immunocompromised individuals.

• Ensure documentation clearly specifies "cancrum oris" or "Noma" to differentiate from other oral infections.
• Consider co-morbid conditions such as malnutrition, immunodeficiency, or systemic illness, and code them appropriately.
• This is a severe condition; look for associated complications like osteomyelitis or sepsis, and code them as secondary diagnoses.