W85-W99: Exposure to electric current, radiation and extreme ambient air temperature and pressure

W92: Exposure to excessive heat of man-made origin

The group of conditions captured under the rubric of "exposure to excessive heat of man-made origin" refers to health issues that arise as a result of coming into contact with extremely high temperatures created by human activities - such as factories, ovens, or certain types of machinery. These conditions occur when the body's heat-regulation system is overwhelmed, impeding its ability to maintain a normal internal body temperature. Symptoms can vary but often include sweating, rapid pulse, dizziness, fatigue, muscle cramps, nausea, and headache. As these conditions progress, more severe symptoms such as confusion, shallow breathing, and loss of consciousness may occur. Systems in the body most affected by exposure to excessive heat primarily include the cardiovascular and nervous systems, but other systems can also be impacted, leading to potentially serious complications.