Cut and paste this URL to share the unmodified register and value:
https://regviz.com/r/stm32/stm32wb0/STM32WB05/ADC/DS_DATAOUT#0x0
DS_DATAOUT register
DS_DATA[15:0]: contain the converted data at the output of the Down Sampler.
https://github.com/modm-io/cmsis-svd-stm32