Due to the difficulties in diagnosing occupational diseases and deficiencies in statistical data, occupational diseases are underreported in Turkey. The average number of records in our country is around 10, when at least 100.000 new occupational skin diseases need to be diagnosed annually. This is due to the shortcomings in the diagnosis and notification of the occupational diseases in our country. In this article, we analyzed occupational skin diseases and their International Classification of Diseases codes, and how they are diagnosed medically and legally, and the difficulties in diagnosing these diseases. The article emphasizes that the dermatologists should be trained in occupational diseases and occupational health codes in order to improve diagnosing and reporting occupational diseases.