案例回放张某系某企业职工,一天早上,在骑自行车上班途中,被一男子从后面用摩托车撞倒后,抢走随身携带的背包。张某当即报警,公安机关经调查后以刑事案件立案侦查,并在全力追捕犯罪嫌疑人。张某在此次事故中摔伤左肩,经诊断为左侧锁骨骨折,住院二十三天,共花医疗费6000多元。张某所受伤害是否属于工伤? Case playback Zhang Department of a business worker, one morning, riding a bike to work on his way, was a man knocked down by a motorcycle from behind, took away the carry-on backpack. Zhang immediately alarm, the public security organ investigating criminal cases filing investigation, and in full pursuit of criminal suspects. Zhang broke the left shoulder in the accident, the diagnosis of the left clavicle fracture, hospitalized twenty-three days, a total cost of more than 6,000 yuan medical expenses. Zhang hurt whether it belongs to work-related injuries?