Intrinsic posteruptive color changes

This code describes discoloration of a tooth's surface that occurs after the tooth has erupted through the gum line, originating from within the tooth structure itself. This intrinsic staining is not caused by external factors like food or beverages, but rather by internal processes affecting the dentin or enamel.

Use this code when documentation specifies internal tooth discoloration that developed post-eruption, such as tetracycline staining, fluorosis, or discoloration due to pulpal necrosis or internal resorption. The patient's dental record should clearly indicate the intrinsic nature and posteruptive onset of the color change.

• Differentiate from extrinsic stains (e.g., coffee, tobacco), which are typically coded under other categories.
• Ensure documentation specifies "intrinsic" and "posteruptive" to support this code.
• Consider if an underlying cause (e.g., fluorosis, pulpal disease) should be coded additionally if known and documented.