Final answer:
The CPT code for an excision of a malignant lesion of the skin is determined by the body area and the complexity of closure.
Step-by-step explanation:
The CPT code for an excision of a malignant lesion of the skin is determined by the body area from which the excision occurs and the complexity of closure.
The depth, length, and diameter of closure are not determining factors for the CPT code.
For example, if a malignant lesion of the skin is excised from the arm and the closure is considered complex, the CPT code would reflect both the arm area and the complexity of closure.