Police said at the time he had suffered a single gunshot wound to the abdomen area but that he had left without being treated.
"Moses left the hospital of his own volition soon after being admitted," police said at the time.
"Moses requires urgent medical treatment and surgery to remove the projectile."
Police have since confirmed that Moses did receive medical assistance in hospital at some point for the gunshot wound.
"We cannot comment further on the treatment received for privacy reasons."
A spokesman said the circumstances surrounding how he came to have the gunshot wound remain unclear.
However, police have still not ruled out the possibility it was self-inflicted.
Moses is appearing in court in relation to warrants for his arrest for unlawful possession of a firearm and breaching release conditions.
He has also been charged with aggravated robbery in connection to a separate matter, police said.