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HealthInfo Canterbury

National Health Index (NHI) numbers

The National Health Index (NHI) number is a unique number used to identify people in the New Zealand health system. Anyone who has had contact with the New Zealand health system should have an NHI number consisting of three letters and four numbers, for example ABC1235.

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Written by HealthInfo clinical advisers. Last reviewed June 2021.

Page reference: 87197

Review key: HIYHI-77571