Excessive keratinized residual ridge mucosa

This code signifies an overgrowth of the keratinized tissue on the edentulous alveolar ridge, often appearing as firm, pale, and sometimes nodular tissue. It represents a hyperplastic response of the oral mucosa in areas where teeth have been lost. This condition can interfere with denture fit and function.

Apply this code when documentation indicates an excessive amount of keratinized tissue on the residual alveolar ridge, typically observed in patients who are edentulous. This diagnosis is often made during clinical examination for denture fabrication or assessment of ill-fitting prostheses. Documentation should specify "excessive keratinized residual ridge mucosa" or similar descriptive terms.

• Differentiate from inflammatory fibrous hyperplasia (K13.0), which is typically softer and more erythematous.
• Ensure the documentation clearly states "excessive keratinized" to distinguish from other types of residual ridge abnormalities.
• Consider sequencing with codes for ill-fitting dentures (T85.6xxA) if the hyperplasia is contributing to prosthetic issues.