What is a Weil Osteotomy and how do you code it? The patient has a dislocated 2nd metatarsal due to Hallux Valgus of the left foot. The procedure done was Austin osteotomy of the hallux valgus with Weil osteotomy of the 2nd metatarsal. I coded 28296-LT with 28308-LT. I'm not sure if that's correct. If anyone could provide some guidance that would be greatly appreciated.