I need assistant drafting appeal letter. The insurance denied the provider's claim billed with the codes 21198 (Osteotomy, mandible, segmental) & 67900 Repair of brow ptosis (supraciliary, mid-forehead or coronal approach)for lack of authorization. A wide chin is a masculine facial feature and can bring dysphoria to the transgender population. Chin osteotomy is the corrective procedure for this dysphoric facial feature (CPT code: 21121) and it is medically indicated. Having a high hair line is also masculine and can bring gender dysphoria. Hair lowering procedure (CPT code: 14060, modifier 51) is also medically indicated