I am learning a new field and I want to make sure I am billing this correct…
OP NOTE: Mohs left shin

Chemosurgery (Mohs Technique), second stage, fixed or fresh tissue, up to 5 specimens and first stage, fresh tissue technique, up to 5 specimens. patient was brought to operating room and place on the table in a supine position. a biopsy report of the operative site was reviewed and lesion’s location confirmed by the patient. the lesion was removed by Mohs’ surgery, fresh-tissue technique in 2 stages with 4 frozen sections of tissue processed. 4 frozen sections of tissue were stained and examined with hematoxylin and eosin stain. all tissue which was removed from the lesion site was examined by frozen section technique with detailed mapping of the tissue, and with the doctor reading the slides.
A layer:2/2+
B layer: 2/2-

So I am reading it as follow with CPT CODES 17313 and 17314×2????
Any help would be really appreciated, I would like the doctor to receive full payment that he deserves.