From Wiktionary, the free dictionary
Calque from Chinese 健康碼／健康码 (jiànkāngmǎ).
health code (plural health codes)
- (China) A QR code identifying someone's risk level during the COVID-19 pandemic in the PRC, colored in green, yellow, or red in increasing danger.
- Used other than figuratively or idiomatically: see health, code.
