According to the Repair (Closure) CPT® guidelines, what type of repair is reported when a...

According to the CPT® guidelines for Repair (Closure), an intermediate repair includes the closure of a wound with one or more layers of subcutaneous tissue and superficial fascia in addition to the skin (epidermal and dermal) closure. It also involves extensive cleaning of the wound, which includes copious irrigation and the removal of particulate matter. This description fits the scenario provided in the question.

AMA's CPT® Professional Edition, Repair (Closure) guidelines.