Cellulitis and abscess of mouth

This code signifies an acute bacterial infection of the soft tissues within the oral cavity, characterized by inflammation (cellulitis) or a localized collection of pus (abscess). These infections can affect various structures of the mouth, excluding those specifically addressed by other codes.

Apply this code when documentation indicates cellulitis or an abscess originating from the oral soft tissues, such as the buccal mucosa, palate, or floor of the mouth. This code is appropriate when the physician's diagnosis explicitly states "cellulitis of mouth" or "abscess of mouth" without further specification to a more precise anatomical site.

• Carefully review documentation to differentiate between a general mouth infection and an infection of a specific oral structure (e.g., tongue, salivary gland) that has its own dedicated code.
• Do not use this code for dental-related abscesses (periapical, periodontal) or peritonsillar abscesses, as these are classified elsewhere.
• Consider an additional code for the causative organism if known and documented.