In which field did China's health record work first originate?

The field of medical services.

According to Baidu data query, as early as May 2009, China's Ministry of Health promulgated the Basic Framework and Data Standard of Health Records (Trial), which laid a solid foundation for the informatization of residents' health records. Health records have become an important medical legal document in the field of basic general medical services.

Health record is a record of all the changes of vital signs from birth to death, as well as all the health-related behaviors and events.