The Government has acknowledged some Kiwi kids' healthcare needs are slipping through the cracks due to its "outdated" programme.
A Ministry of Health review of the Well Child Tamariki Ora programme - which was meant to screen all babies and children for a number of common health problems - was under way.
The announcement comes after the Herald, earlier this year, reported authorities urgently trying to track down babies missing from the nation's health system with fears about the wellbeing of potentially hundreds of at-risk Kiwi children.
Associate Minister of Health Dr Ayesha Verall said while the programme was developed with good intent, it was outdated.
"New Zealand's population has changed significantly, and this programme has not kept pace with the needs of whānau; including the impact of poverty, drug use, mental health challenges, housing and family situations.