11102	Tangential biopsy of skin (eg, shave, scoop, saucerize, curette); single lesion (NF Allowable $114.09)
+11103	each separate/additional lesion (List separately in addition to code for primary procedure) (NF Allowable $61.39)
11104	Punch biopsy of skin (including simple closure, when performed); single lesion (NF Allowable $143.48)
+11105	each separate/additional lesion (List separately in addition to code for primary procedure) (NF Allowable $70.21)
11106	Incisional biopsy of skin (eg, wedge) (including simple closure, when performed); single lesion   (NF Allowable $173.50
+11107	each separate/additional lesion (List separately in addition to code for primary procedure) (NF Allowable $82.76)

Tangential biopsies are partial thickness.  Punch biopsies require a punch tool and are full-thickness.  Incisional biopsies are full-thickness.

If multiple lesions are biopsied utilizing different techniques, only one base code should be reported (the highest valued code), with add-on codes reported for the additional biopsies.  For example, if one biopsy is performed by punch method and another by incisional method, proper reporting would be 11106 and 11105.

*This response is based on the best information available as of 2/28/19.