Allergy to existing dental restorative material

This code signifies an adverse immunological reaction to a substance used in a dental filling, crown, bridge, or other existing dental restoration. It indicates that a patient has developed an allergic response to materials like amalgam, composite resin, or metals already present in their mouth.

Apply this code when a patient presents with symptoms such as oral inflammation, rash, itching, or discomfort directly attributed by a clinician to an allergic reaction to a previously placed dental restorative material. Documentation should clearly state the allergic nature of the reaction and identify the existing dental restoration as the causative agent.

• Ensure documentation specifies "allergy" rather than a general adverse effect or irritation.
• Do not confuse with adverse reactions to newly administered substances or materials not yet placed as a restoration.
• Consider sequencing this code as a secondary diagnosis if the primary reason for the encounter is the management of the allergic symptoms.