Anything that can prove the facts of the case can be used as evidence. Only the evidence must conform to the authenticity, legality and relevance, will it be accepted by the judge. In the trial, the evidence must be cross-examined by both parties.
The diagnosis certificate needs to be issued on the day of diagnosis and stamped in the next few days. As long as the materials provided by employees are stamped by the hospital, they belong to the first-visit materials. According to Article 17 of the Regulations on Work-related Injury Insurance, if an employee suffers an accident injury or is diagnosed and identified as an occupational disease according to the provisions of the Law on the Prevention and Control of Occupational Diseases, the unit to which he belongs shall, within 30 days from the date of the accident injury or the date of diagnosis and identification as an occupational disease, apply to the social insurance administrative department in the overall planning area for work-related injury identification. Under special circumstances, with the consent of the administrative department of social insurance, the application time limit may be appropriately extended. If the employing unit fails to apply for work-related injury identification in accordance with the provisions of the preceding paragraph, the employees with work-related injuries or their immediate family members and trade unions may apply for work-related injury identification directly to the administrative department of labor and social security in the area where the employing unit is located within 1 year from the date of accident injury or occupational disease diagnosis and identification. In accordance with the provisions of the first paragraph of this article, matters that should be identified by the provincial social insurance administrative department shall be handled by the municipal social insurance administrative department located in the district where the employer is located in accordance with the principle of territoriality.