Health insurance card — the card/document you present at medical facilities to use public health insurance; commonly abbreviated as 'hokenshō'.
病院では受付で健康保険証を提示してください。
Please present your health insurance card at the hospital reception.
アルバイト先の雇用手続きで健康保険証のコピーを求められた。
I was asked for a copy of my health insurance card during the employment procedures at my part-time job.
引っ越し後は住所変更の手続きをして、健康保険証の記載内容を更新した。
After moving, I completed the address change procedures and updated the information on my health insurance card.
子どもを病院に連れて行くときは健康保険証を忘れないようにしましょう。
When taking your child to the hospital, be sure not to forget the health insurance card.