"We wish Ozzy all the best in his recovery and hope he is back to full health as soon as possible," they said in a release this afternoon.
Ticket holders for the Christchurch show at Horncastle Arena on Wednesday, March 13 are entitled to a full refund.
Meanwhile, Judas Priest - joined by soon to be announced special guests - will still perform in Auckland at Spark Arena on Saturday, March 16.
All tickets are $99 and existing ticket holders will receive a partial refund for the difference within 5 business days.
Those ticket holders who no longer wish to attend can arrange a refund by contacting Ticketmaster.