CPT. CPT Codes

“I have a patient who returns to the office for regular treatment of a hyperkeratotic lesion. Our documentation states “a hyperkeratotic lesion with a punctate keratin core with obliteration of skin tension lines to the sub 5th metatarsal head.” The plan is documented as “Cold spray to the lesion for anesthesia. The lesion was then circumscribed with #15 blade. The keratotic core then excised down to the level of the basement membrane. Bleeding was appreciated, then controlled with compression. No biopsy was performed.” Can I ever bill this as a CPT 11305? with a D23.7? If so, can this be done every 10 weeks?”