CPT Code 11400: Excision of Benign Skin Lesion, Trunk/Extremities, 0.5 cm or Less

Yes, pathology interpretation (CPT 88305) is separately billable and should be reported in addition to 11400.

Lesion size measurement includes the lesion plus the margins of excision, measured by greatest diameter prior to excision.

Yes, multiple lesions removed during the same session can each be reported separately using multiple codes, provided each lesion excision is distinctly documented.