** Shares of 4Dmedical 4DX.AX surge as much as 28.6% to A$0.990, highest since December 6, 2023
** Medical tech co top gainer on the ASX All Ordinaries index .AORD
** Co says U.S. Centers for Medicare & Medicaid Services (CMS) confirms reimbursement for CT:VQ, CT-based ventilation-perfusion software
** Co's CT:VQ technology is used for scanning lung problems and received U.S. FDA clearance on Monday
** Says CT:VQ scans will be reimbursed by CMS at $650.50 per scan
** Stock has more than doubled in value so far this year
(Reporting by Ananya Verma in Bengaluru)
((ananya.verma@thomsonreuters.com;))