Pnctr w/o foreign body of thmb w damage to nail, init

This diagnosis code indicates a penetrating injury to the thumb, specifically a puncture wound, where no foreign object remains embedded in the tissue. The injury also involves damage to the thumbnail or nail bed. This code is used for the initial treatment of such an injury.

Apply this code when a patient presents with a fresh puncture wound to an unspecified thumb, and examination confirms associated nail damage (e.g., laceration of the nail plate, subungual hematoma, or avulsion of the nail). This is appropriate for the first encounter for this specific injury.

• Ensure documentation specifies "puncture wound" and "without foreign body."
• Confirm the injury involves the thumb and includes damage to the nail structure.
• The "A" suffix indicates an initial encounter for active treatment of the injury.