Question: Washington Subscriber Answer: You should have documentation showing that the ob-gyn removed all of the exocervix, all of the transformation zone, and all or part of the endocervix to call it a conization. For a LEEP conization, you should report 57522 (Conization of cervix, with or without fulguration, with or without dilation and curettage, with or without repair; loop electrode excision). The procedure includes an ECC and D&C if performed so nothing more would be billed. Code 57500 (Biopsy of cervix, single or multiple, or local excision of lesion, with or without fulguration [separate procedure]) is simply a biopsy of the cervix by any method. You would report this code if the physician performed a LEEP biopsy without colposcopy.