Labor Insurance Act Article 42-1

Where the insured person gets an occupational injury or disease, the insured unit shall fill in an outpatient clinic note of injury and disease or a letter of application for hospitalization (hereinafter referred to as "the Letter for Occupational Injury and Disease") to apply for diagnosis and treatment; in case the insured unit doesn't produce the outpatient clinic note or letter, the insured person may request the insurer to issue, and the insurer shall grant the note or letter after the case is confirmed.Where the insured person has not the above-mentioned outpatient clinic note or Application Letter for Occupational Disease and is diagnosed to have got an occupational disease, the doctor may produce an outpatient clinic note of occupational disease. The acquisition and loss of the qualification to produce such note as well as the application and use of the clinic note shall be prescribed out by the insurer, and reported to the competent central authority for approval and issue.
中文原文 勞工保險條例第42-1條
被保險人罹患職業傷病時,應由投保單位填發職業傷病門診單或住院申請書(以下簡稱職業傷病醫療書單)申請診療;投保單位未依規定填發者,被保險人得向保險人請領,經查明屬實後發給。
被保險人未檢具前項職業傷病醫療書單,經醫師診斷罹患職業病者,得由醫師開具職業病門診單;醫師開具資格之取得、喪失及門診單之申領、使用辦法,由保險人擬訂,報請中央主管機關核定發布。

English translation for reference only; the Chinese text prevails. Not legal advice.