Other superficial bite of left thumb, initial encounter

This code describes a bite wound affecting the superficial layers of the left thumb, not involving deeper structures like muscle, tendon, or bone. The injury is recent and the patient is presenting for initial evaluation and treatment.

Apply this code for patients presenting with a new bite wound to the left thumb that is documented as superficial. This includes abrasions, punctures, or lacerations caused by an animal or human bite, where the depth of injury does not extend beyond the skin and subcutaneous tissue.

• Ensure documentation specifies "left thumb" and "superficial" to support this code.
• Verify that the encounter is for the initial treatment of the injury; subsequent encounters will require a different seventh character.
• Always code the external cause of the injury (e.g., W53.01XA for dog bite) in addition to the injury code.