Maternity Clinical Indicators

Link to the Maternity Clinical Indicators web tool

Use our web tool to explore 19 individual maternity clinical indicators by location, ethnicity and over time.

About the web tool

The Maternity Clinical Indicators web tool presents comparative maternity interventions and outcomes data across a set of 19 indicators for pregnant people and their babies by maternity facility and district of residence.

The web tool presents data since 2009, with a focus on people giving birth and babies born in the 2024 calendar year.

About the indicators

One indicator applies to pregnant people who registered with a lead maternity carer (LMC).
Eight indicators apply to standard primiparae (definition used to identify a group of pregnant people for whom interventions and outcomes should be similar).
Six indicators apply to all people giving birth in New Zealand.
Four apply to all babies born in New Zealand.

About the data

Data for this web tool includes data extracted from maternity events recorded in Health New Zealand | Te Whatu Ora's National Maternity Collection.

Maternity data classification changes

Health New Zealand made changes to the way in which maternity data is managed in 2025, including some changes to ethnicity classification. This has led to some changes in numbers and rates. For more information please contact data-enquiries@tewhatuora.govt.nz.

Maternity data clinical coding changes

From 1 July 2019, diagnoses codes are assigned using the 11th edition of the International Statistical Classification of Diseases and Related Health Problems, Tenth Revision, Australian Modification (ICD-10-AM), and procedure codes are assigned using the 11th Edition of the Australian Classification of Health Interventions (ACHI).

Some maternity events (people giving birth in hospital and live babies born in hospital) are impacted by changes in the 11th edition clinical coding standards, particularly place of birth and type of birth data.

Therefore, the data in this web tool may show variation due to the change in coding standards rather than a true increase.

Further information about these coding changes can be found in the web tool and the maternity clinical indicators background document.

Disclaimer

In this web tool, maternity data was extracted and recalculated to reflect ongoing updates to data in the National Maternity Collection and the revision of population estimates and projections following each census. For this reason, please use this latest version of the web tool as numbers and rates in previous maternity publications and tables may not be comparable.

We have quality checked the collection, extraction, and reporting of the data presented here. However, errors can occur. Contact us through the Data Services team at Health NZ if you have any concerns regarding any of the data or analyses presented here, at data-enquiries@tewhatuora.govt.nz.

Publishing information

Date of publication:	18 Dec 2025
Ordering information:	Only soft copy available to download
Copyright status:	Owned by Te Whatu Ora and licensed for reuse under a Creative Commons Attribution 4.0 International Licence