Erosion of teeth

This code signifies the loss of tooth structure due to chemical processes not involving bacterial action. It results from exposure to acids, often from dietary sources (e.g., acidic foods/drinks), gastric reflux, or environmental/occupational exposures. This non-carious destruction leads to a gradual wearing away of enamel and dentin.

Apply this code when documentation clearly indicates tooth surface loss caused by acid dissolution, distinct from abrasion, attrition, or abfraction. Common scenarios include patients with chronic acid reflux, bulimia nervosa, or high consumption of acidic beverages. Supporting documentation should specify the non-bacterial, chemical etiology of the tooth wear.

• Differentiate from dental caries (decay), which is bacterial in origin.
• Do not confuse with attrition (tooth-to-tooth contact) or abrasion (mechanical wear from foreign objects).
• Look for documentation of acid exposure, such as GERD, dietary habits, or occupational hazards.