As reported by the Yomiuri Shimbun:
"A total of 573 deaths have been certified as "disaster-related" by 13 municipalities affected by the crisis at the crippled Fukushima No. 1 nuclear power plant, according to a Yomiuri Shimbun survey.
This number could rise because certification for 29 people remains pending while further checks are conducted.
The 13 municipalities are three cities--Minami-Soma, Tamura and Iwaki--eight towns and villages in Futaba County--Namie, Futaba, Okuma, Tomioka, Naraha, Hirono, Katsurao and Kawauchi--and Kawamata and Iitate, all in Fukushima Prefecture.
These municipalities are in the no-entry, emergency evacuation preparation or expanded evacuation zones around the nuclear plant, which suffered meltdowns soon after the March 11 disaster.
A disaster-related death certificate is issued when a death is not directly caused by a tragedy, but by fatigue or the aggravation of a chronic disease due to the disaster. If a municipality certifies the cause of death is directly associated to a disaster, a condolence grant is paid to the victim's family. If the person was a breadwinner, 5 million yen is paid..."