No, the cleaning station for the Sonicare 9000 Diamond Clean is not compatible with the DiamondClean 9900 Prestige (HX9992/12). The DiamondClean 9900 Prestige uses a new charging system that differs from that of older models such as the Sonicare 9000 Diamond Clean. Charging stations labelled "CBA" (e.g. CBA1001, CBA2001, etc.) must be used for the DiamondClean 9900 Prestige, while the older models such as the Sonicare 9000 Diamond Clean use charging stations such as the HX9100.