Dr Bain said that in 2006, after suicide tragedies in the Waikato town of Putaruru, legislation was tightened around what could be reported on suicides.
"The Coroner highlights real concerns with the recent editorial in the New Zealand Medical Journal which greatly criticises the calls for more openness.
"Sir Peter Gluckman's views are referred to as leading to caution in the area of publication and the high risk of copy-cat suicides."
Dr Bain was concerned at claims by experts that there may be increased risks of suicide in New Zealand and said it was "alarming" that experts were suggesting that more openness could facilitate more suicides.
"The coroner stresses that these matters be resolved urgently within New Zealand so that coroners, the media, and communities of New Zealand have a clearer direction based on international best practice in suicide prevention as to publication and openness and the effects of suicidal behaviour."
He recommended the Government urgently put in place an evaluation aimed at assessing the extent of recent changes to media guidelines and its effect on suicidal behaviours.
Dr Bain also recommended the Government give urgent attention to the aspects in the Coroners Act that related to the definition of the "manner in which death occurred".
He said there should be more clarity around the direction to coroners that they could not allow publication unless they determined it was unlikely to be detrimental to public safety.
Last month Chief Coroner Neil Maclean called for suicide be "brought out of the shadows".
Judge Maclean said suicide had to be brought out of the shadows and he was worried by the increases in certain demographics.
"I am concerned that we seem to be making no impact - there has been no visible downward trend at all. Our job is to tell the public the facts - I am no more qualified to suggest an answer or a solution than anyone," he said.
Earlier this month, Coroner Sue Johnson urged the Ministry of Health conduct a national media campaign to throw light on how to recognise and deal with a suicidal person.
Prime Minister John Key has said youth suicide statistics are damning and the Government needed to do better.
Key statistics
the number of suicides recorded by the Coronial Services Unit in the year to June 30 was 547, down 11 on the previous 12 months;
74 per cent of all suicides in New Zealand were male;
increase in suicides in the 15-19 age group - from 56 to 80; and
28 per cent of people who killed themselves were unemployed.
Source: Coronial Services Unit
Where to get help
If it's an emergency and you feel you or someone else is at risk, call 111.
Youthline: 0800 376 633.
Lifeline: 0800 543 354.
Depression: Helpline 0800 111 757.
What's Up: 0800 942 8787 (noon-midnight).
