Walsh will be allowed to attend medical appointments in the company of two corrections staff over the next three months.
Supreme Court Justice Anne Bampton says she will review her order in September to ensure Walsh is following all necessary directions.
Bampton says Walsh has relapsing, remitting multiple sclerosis and requires continuing treatment for his condition.
She told the court today that Walsh had already missed a number of medical appointments in attempts to accommodate his treatment around his detention in a secure mental health facility in Adelaide.
Under the new arrangements, he will be allowed on day release to attend those appointments.
Walsh was found not guilty of murder because of mental incompetence in relation to stabbing his 55-year-old father to death at the family’s Adelaide home in July 2015.
The court found he had undiagnosed and untreated schizophrenia at the time.
Bampton said reports indicated that Walsh had responded excellently to anti-psychotic medication and was likely to comply with his day release conditions.
His counsel, Trish Johnson, told the court that should everything go well with his release for medical treatment she may ask it be extended to limited rehabilitation leave.
Prosecutor Lucy Boord said the Crown did not oppose the day release for medical treatment.
Walsh watched the proceedings by video link but offered no comment.
He appeared to sigh when the hearing concluded.
The case will return to court on September 5.
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