Abrasion of unspecified thumb, initial encounter

This code signifies a superficial injury to the thumb, characterized by a scrape or graze that affects the outermost layers of skin. It indicates that the patient is receiving initial treatment for this specific injury.

Apply this code when documentation clearly states an abrasion of the thumb, without specifying which thumb (right or left). This is appropriate for the first time a patient presents for care related to this particular injury.

• Ensure the documentation explicitly states "abrasion" and "thumb" without further specificity regarding laterality.
• The "A" suffix indicates an initial encounter for this injury; use subsequent encounter codes for follow-up care.
• Do not use if there is any mention of an open wound extending beyond the epidermis, such as a laceration or puncture.