Counties Manukau District Health Board is in talks with ACC to recover costs associated with treating the victims of the 2019 Whakaari/White Island volcanic eruption.
The eruption on December 9 saw a number of the injured transferred to the National Burn Centre at Auckland's Middlemore Hospital.
Twenty-one people died in the eruption and 26 were injured, many receiving severe burns.
A report to the DHB's combined committee from April outlined the costs involved in treating the burns victims, which totalled about $11.2 million.