The English expression of "QR Code" is QR code, so the correct expression of "health code" is: health QR code or health code. For example:
Please show me your health code.
Please show me your health code.
If you don't have a health password, you can't go there.
You can't go there if you don't have a health code.
Related medical English expressions
1, nucleic acid detection
The English expression of "nucleic acid detection" is nucleic acid detection, which can also be expressed by COVID-19 test or swab test.
This hospital has conducted more than 2000 nucleic acid tests.
This hospital has conducted more than 2000 nucleic acid tests.
2. Test result: negative/positive
The test results are negative and positive: positive.
His nucleic acid test results were negative.
His nucleic acid test was negative.