The current system did help the DHB respond to Covid-19 but this market research tender was planned before that, the DHB said.
The tender document says the system must be able to "instantly" alert infection control teams to new clusters and patient admissions.
"It is critical that our health system works together to support a cohesive approach to infection prevention and control nationally."
The system must be highly secure, but at the same time it must be able to share data across DHBs and also with other healthcare organisations, including "private healthcare facilities".
"Users from other DHBs where the patient has not received care, must not be able to see the patient's data," it said.
It must be Cloud-based and an off-the-shelf product that does not require significant product development, but could be customised to each DHB.
"This is a unique opportunity to be part of the expansion of a major New Zealand-wide health initiative," it said.
Even as the market research is going on, the current system is being expanded to link in more DHBs using ACC funding.