Disability under Wisconsin's workers compensation benefits law, Wis. Stat. Ch. 102 is understood to be wage loss or limitation as a result of a work-related injury or condition, defined in as "mental or physical harm to an employee caused by accident or disease." See Wis. Stat. Sec. 102.01(2)(c). Temporary total disability or temporary partial disability is wage loss during the time the injured worker is healing. The healing period is the time during while an injured worker is both convalescing from the injury and submitting to active treatment. The healing period is before the medical condition becomes stationary. The worker in the healing period is paid TTD. It is necessary that a doctor provide the worker with an off work slip stating the worker cannot work due to a work-related injury or has work-related restrictions, that the employer cannot accommodate. If at the end of the healing period, the doctor states the worker has a permanent disability, then PPD or permanent partial disability benefits are due to be paid out monthly to the injured worker.