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.
pip install python-nhi
from nhi import is_nhi
print(is_nhi("WLD9413")) # True
print(is_nhi("zsc21tn")) # True
print(is_nhi("zzZ0044")) # False
print(is_nhi("ZZZ00AA")) # FalseChecks 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.
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)) # FalseNote: 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.