Te Whatu Ora Whanganui has acknowledged that a lack of co-ordinated care resulted in a man having his lower leg amputated.
The man went to Whanganui Hospital with a sore toe eight times between June and August in 2018, with six of the visits to the emergency department.
An ingrown nail eventually turned gangrenous.
A Health and Disability Commission decision on the case was released this week.
In it, deputy Health and Disability Commissioner Dr Vanessa Caldwell found the Whanganui District Health Board to be in breach of the Code of Health and Disability Services Consumers' Rights regarding the man's care, as every patient was entitled to quality and continuity of services.