AMHOCN annually reports the data collected by states and territories from the National Outcomes and Casemix Collection (NOCC). Implementation of the NOCC commenced during the period of the "Second National Mental Health Plan 1998-2003", and was specifically outlined in a document titled "National Mental Health Information Priorities and Strategies", released in June 1999 and endorsed by all governments. Substantial Australian Government funding was offered to jurisdictions to support the implementation process, with bilateral funding agreements negotiated with each jurisdiction over the following two years. By October 2001, all states and territories had agreed to collect routine outcome measures and to submit data to a national pool annually through a process funded by the Commonwealth. The introduction of this was staggered, but by 2003-04, all states and territories were submitting data, with the collection growing every year since.

The NOCC data are reported in several key resources:

1. the AMHOCN web Decision Support Tool and the AMHOCN Reports Portal. These can be accessed directly or via the AMHOCN Data Portal.
2. the Consumer Outcomes in Mental Health Care section of the Mental Health Online Report, published by the Australian Institute of Health and Welfare.
3. Change in Mental Health Consumers' Clinical Outcomes (KPI 1) of Key Performance Indicators for Australian Public Mental Health Services, also published in the Mental Health Online Report of the Australian Institute of Health and Welfare.