In simple words: This code refers to a follow-up visit for a shallow bite injury on both sides of the front of your chest, not from an insect.

Other superficial bite of bilateral front wall of thorax, subsequent encounter. This code describes a superficial injury to both sides of the front wall of the chest caused by a bite, excluding insect bites, occurring during a subsequent encounter for care related to the injury.

Example 1: A patient was bitten by a dog on the chest a week ago and received initial treatment. They return for a follow-up appointment to check on the healing process. The code S20.373D would be used for this subsequent encounter., A patient presents with a superficial bite injury to the bilateral front wall of the thorax sustained during an altercation two days prior. The initial encounter was documented with S20.373A. The patient returns today for a wound check and dressing change. The code S20.373D would be used for this encounter., A child was bitten by another child during play, resulting in a superficial bite mark on the front of the chest, bilaterally. After initial treatment elsewhere, the child's parents bring them to their pediatrician for a follow-up check. S20.373D is appropriate for this subsequent visit.

Documentation should include details of the bite, including the causative agent (if known), the location and depth of the injury, and evidence that this is a subsequent encounter for care related to the initial bite injury. The date of the original injury should also be noted.

** This code specifically refers to superficial bites, indicating that the injury does not penetrate beyond the skin's surface. Deeper bites require different codes. This code excludes insect bites (T63.4) and open bites of the front wall of the thorax (S21.14). It is important to differentiate this code (subsequent encounter) from S20.373A (initial encounter) for accurate billing.