Details about genetic diabetes are available on our website www.diabetesgenes.org with the specific details about diabetes diagnosed in the first 9 month of life https://www.diabetesgenes.org/about-neonatal-diabetes/
The key papers are the New England Journal of Medicine publication which was the gene discovery paper and the our follow up paper from 2021 in Diabetes care.
Genetic testing is only appropriate for people diagnosed under 9 months, sadly it’s not generally applicable.
Neonatal diabetes crowdfunder campaign: https://exeter.hubbub.net/p/exeterdiabetes/pitch/