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This item has been superseded by a newer version by one or more Registration Authorities.


This NMDS includes data about service contacts provided by specialised mental health services for patients/clients, other than those admitted to psychiatric hospitals or designated psychiatric units in acute care hospitals, and those resident in 24 hour staffed specialised residential mental health services. 

Metadata items in this Data Set Specification

Below is a list of all the components within this Dataset Specification.
Each entry includes the item name, whether the item is optional, mandatory or conditional and the maximum times the item can occur in a dataset.
If the items must occur in a particular order in the dataset, the sequence number is included before the item name.

Data Elements
Reference Data Element Data Type Length Inclusion #
Episode of care—mental health legal status, code N Number 1 mandatory 1
Episode of care—principal diagnosis, code (ICD-10-AM 7th edn) ANN{.N[N]}
Specific Information:

Codes can be used from ICD-10-AM or from The ICD-10-AM Mental Health Manual: An Integrated Classification and Diagnostic Tool for Community-Based Mental Health Services, published by the National Centre for Classification in Health.

- - mandatory 1
Establishment—Australian state/territory identifier, code N Number 1 mandatory 1
Establishment—organisation identifier (Australian), NNX[X]NNNNN - - mandatory 1
Establishment—organisation identifier (state/territory), NNNNN - - mandatory 1
Establishment—region identifier, X[X] - - mandatory 1
Establishment—sector, code N - - mandatory 1
Person—area of usual residence, geographical location code (ASGC 2009) NNNNN - - mandatory 1
Person—country of birth, code (SACC 2008) NNNN - - mandatory 1
Person—date of birth, DDMMYYYY
Specific Information:

This field must not be null.

National Minimum Data Sets:

For the provision of State and Territory hospital data to Commonwealth agencies this field must:

  • be less than or equal to Admission date, Date patient presents or Service contact date
  • be consistent with diagnoses and procedure codes, for records to be grouped.
Date/Time 8 mandatory 1
Person—Indigenous status, code N Number 1 mandatory 1
Person—marital status, code N Number 1 mandatory 1
Person—person identifier, XXXXXX[X(14)] - - mandatory 1
Person—sex, code N Number 1 mandatory 1


Related content

Relation Count
As a numerator in an Indicator 0
As a denominator in an Indicator 0
As a disaggregation in an Indicator 0