NT Health says all services continue to operate normally with interim warehouse arrangements put in place using alternative storage facilities across Darwin.
It says replacement stocks of medical supplies and equipment started arriving on Tuesday with further stock expected on Wednesday.
"About 60 per cent of supply lines will be replenished over the next 72 hours with further supplies expected over the coming week," NT Health said.
The Royal Darwin and Katherine hospitals will remain in a code yellow for another 24 hours to allow a co-ordinated response as medical supplies are replenished to make sure there are no impacts to service delivery or patient care.
The blaze on Sunday left hospitals in Darwin, Katherine and Palmerston with about three days' worth of some items including theatre consumables, disposable sheets and gloves, but officials say there will be no impact on services or patient care.
Some emergency equipment was also lost but the warehouse, which has been leased by the government for the past four years, was not used to store any drugs or other pharmaceutical products.
NT Health called a code brown at the weekend to spark a system-wide response, which also included assessments of what supplies were available at other sites and what might need to be sourced from interstate.
Nursing and emergency medicine director Kylee St George there would be a full system review of what stock was on hand and where the vulnerabilities were.
On Monday, Chief Minister Natasha Fyles said there was no information to suggest there would be issues or delays with restocking.
"Northern Territory Health participates in national forums and meetings around supply chains, so if we do need to lean into the other states and territories, I'm confident that they will support us," Ms Fyles said.
"That's what we're ascertaining over the next 24 to 48 hours. What exactly was destroyed, what can we get, what might be problematic and how we can work through that."
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