Z80-Z99: Persons with potential health hazards related to family and personal history and certain conditions influencing health status

Z99: Dependence on enabling machines and devices, not elsewhere classified

Dependence on enabling machines and devices refers to a group of conditions in which a person relies on medical technology for some form of necessary bodily function. This could include mobility aids, respiratory machinery such as ventilators, or feeding tubes, among others. These conditions generally arise due to a distinct pre-existing health issue that has led to a loss or significant decrease in the natural functionality of a specific body system. Symptoms a person may experience will vary widely depending on the type of device they depend on, and the underlying health problem that necessitated its use. Often these conditions are chronic or long-term, and disease progression again depends largely on the root health issue. The affected bodily system will directly correspond to the device used, for example, the respiratory system in the case of ventilators or the musculoskeletal system with mobility aids.