newborn coding

when posting newborn H & P 99460 then 99464 attedance at delivery, which should be first and then do you need a modifier?

newborn

99464 first listed followed by 99460, no modifier needed.
CPT 99464 (attendance at delivery) may be reported in conjunction with other initial care services (99460 – normal newborn; 99468 – neonate critical care; or 99477 – neonate under intensive observation).