A small number of specialties were removed in April following a review of the scope of RTT, having been identified as being non consultant-led.
Cafodd nifer fach o arbenigeddau eu dileu ym mis Ebrill yn dilyn adolygiad o gwmpas RTT, ar ôl cael eu nodi fel rhai nad ydynt yn cael eu harwain gan feddygon ymgynghorol.