Our services

The Nexus Model

Nexus is a component of the Victorian Dual Diagnosis Initiative (VDDI)

Nexus was established in 2002 as part of the Victorian Dual Diagnosis Initiative (VDDI). The brief of the initiative was one of capacity building and more specifically, to enhance the capacity of Clinical Mental Health Services, Alcohol & Other Drug (AOD) Services and Psychiatric Disability Rehabilitation and Support Services (PDRSS) to work more effectively with clients presenting with comorbid substance use and mental health issues (Dual Diagnosis).

The prevalence and complexity of dual diagnosis requires an integrated approach to treatment delivered as ‘core business’ within specialist mental health and drug and alcohol services.

Working with dual diagnosis as core business within each sector will ensure that people of all ages are not excluded from a service. Their needs will be addressed within the most appropriate service setting by suitably trained staff and treatment and care that they receive is of high quality.

The purpose of the VDDI is to promote development of a systematic and integrated approach to service provision, so that people of any age experiencing dual diagnosis, have prompt access to quality treatment and support, focused on recovery and optimising individual outcomes.


The priorities:

  • An integrated approach to dual diagnosis treatment and care is delivered as core business in both specialist mental health (clinical and PDRSS) and drug and alcohol services.
  • Appropriate treatment and care can be accessed through entry to either sector – no wrong door for service.
  • A co-ordinated hierarchy of client-centred service responses that respond to varying levels and complexity of need, manage problems early in the most appropriate service setting and are linked by clear referral pathways.
  • Services provide a balance of direct care and the provision of consultation and support to primary care and other sectors working with people experiencing dual diagnosis (eg: housing, employment, education, community organisations).
  • Involve consumers and families/ carers in policy and service development centrally and locally so that services are easier to use, seen as useful and aligned with their needs.


Nexus - Catchment and Service Area

What We Do

Nexus is not a direct clinical service provider. Our role is to enhance dual diagnosis capability across the drug and alcohol and mental health sectors.  Nexus is auspiced by St. Vincent’s Hospital.

Nexus works with more than 40 agencies within the municipalities of:

  • Yarra
  • Boroondara
  • Nillumbik
  • Banyule

Nexus is also directly linked to the remote and rural regions of:

  • Northern Loddon Mallee
  • Loddon Southern Mallee
  • Campaspe


The Key Dual Diagnosis Service Strategies

1. Service Development

  • Intra-Agency: Policy, Procedure, Program
  • Inter-Agency: Partnership, Pathway, Protocol

2. Education

  • Conferences & Publications
  • Information & Education Resources
  • Education Programs – Graduate Cert./Dip. programs
  • Workplace Training

3. Clinical Leadership

  • Primary Consultation- co-joint assess/Treatment/Case Management
  • Secondary Consultation - Clinical advice/review/supervision
  • Tertiary Consultation - Clinical advice/Case presentation/review


Our location

Nexus is located at St Vincent's Hospital Melbourne.

Building F - Location F13 - Bolte Wing, Level 1

Hours - 9.00am - 5.00pm