Mr. Peter Lennon:

Everybody knows his or her PPSN, but it is true that even though the IHI is assigned to everybody, people have not been advised. If one was to ask me how to get his or her IHI, I would say the place to write to is the HSE identity management service. That service should give it to you, because there is not reason not to. If a person feels the HSE is being difficult about it, he or she can always exercise his or her rights under data protection legislation to get the IHI. However, the person should not need to exercise those rights. The HSE should provide the IHI, if a person asks for it.