Each year she does 200-250 autopsies for the greater Wellington region, top of the South Island, National Women's and Middlemore.
She often travelled to Auckland to do her work, but said all parents offered autopsies were asked to consent to their child's body being sent to Wellington if need be.
"I appreciate that that can be a slightly muddled issue but if they object, generally the midwife or doctor will ring me and I'll go up there," she said.
New Zealand has three perinatal pathologists, but that number is about to be boosted to five, making it a "national service".
"We've got two more pathologists starting on June 1, employed in Auckland. It's fantastic," said Dr Zuccollo.
The other two existing pathologists were based on the North Shore and Christchurch.
In cases of suspicious death, the coroner can order an autopsy and the family have no say in the matter.