python-nhi 1.2.1

A function to check strings against the New Zealand Ministry of Health NHI Validation Routine

NHI

A function to check strings against the New Zealand Ministry of Health NHI Validation Routine. Supports the old and new NHI number formats specified in HISO 10046:2023.

Install

pip install python-nhi

Usage

from nhi import is_nhi

print(is_nhi("WLD9413"))  # True
print(is_nhi("zsc21tn"))  # True
print(is_nhi("zzZ0044"))  # False
print(is_nhi("ZZZ00AA"))  # False

Checks are case-insensitive.

Note: This does not check that the NHI number has been assigned to a person, it merely checks the NHI is consistent with the HISO 10046:2023 standard.

Excluding Testcases

NHI numbers that begin with Z are reserved for testing. If you wish to exclude these values, you will need to manually check for a Z prefix:

from nhi import is_nhi

value = "zvb97xq"

print(is_nhi(value))  # True
print(not value.upper().startswith("Z") and is_nhi(value))  # False

Note: This check does not mean that the NHI number has been assigned to a person, it just means that the NHI value is not reserved for testing.

See Also

• https://www.tewhatuora.govt.nz/publications/hiso-100462023-consumer-health-identity-standard/
• https://www.tewhatuora.govt.nz/our-health-system/digital-health/health-identity/national-health-index/information-for-health-it-vendors-and-developers