A man was injected on the wrong side of his spine at Whangarei Hospital after attending staff numbers were reduced due to an emergency surgery.
The mistake is within one of two patient stories presented in the Quality and Safety Governance Summary Report to the Northland District Health Board in minutes released earlier this month.
Reported alongside the incident was a patient praising the "safe" and "professional" service they encountered after being admitted for a hernia operation.
Chief medical officer for the Northland DHB, Dr Michael Roberts, said the reporting of both positive and negative patient stories to the board was an example of increased transparency.
When Mr Roberts started his career, 28 years ago, there was a tendency to not publicly acknowledge mistakes such as this incident, he said.