I have a lexmark 23 black ink cartridge, what other number can be used at walgreens refill station

None!

Lexmark printers do not accept third party ink or refilled cartridges.

This will cause Lexmark to void any warranty claim if your printer s under warranty.

Lexmark does not do this you gauge money out of you. They simply cannot warrant their products from defective inks or ink that is not compatible with the algorithms used by Lexmark to put the ink on the page.