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Checks strings against the New Zealand Ministry of Health NHI Validation Routine.Supports the old and new NHI number formats specified inHISO 10046:2023.

cargo add nhi

• https://docs.rs/nhi/latest/nhi/

NHI values can be validated with theis_nhi function, or parsed toNHI structs:

use nhi::{is_nhi,NHI};fnmain(){let nhi_str ="zac5361";assert_eq!(is_nhi(nhi_str),true);let nhi:NHI = nhi_str.parse().unwrap();assert_eq!(nhi.as_str(), nhi_str.to_uppercase());}

More examples are available inthe docs.

• 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