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health insurance card
病院で健康保険証を提示した。
I presented my health insurance card at the hospital.
健康保険証を忘れ、診察料を全額払った。
I forgot my health insurance card and paid the full consultation fee.
転職したので、新しい健康保険証が自宅に届いた。
Since I changed jobs, a new health insurance card arrived at my home.