The top part of your toe is the dorsal surface of the toe.
"Foot" is the acceptable term, medical or not. The top of the foot is the distum pedis, and the bottom is the "plant", which corresponds to "Palm", which is the 'bottom' of the hand.
The ICD-10 codes are:M79.671 - Pain in right foot.M79.672 - Pain in left foot.
Plantar
Tinea pedis
Plantar hyperhidrosis
dorsal is the top and plantar is the bottom
The right hallux is the first digit of the right foot.
Plantar.The sole of the foot is the plantar surface.
The medical term is 'podiatry'.
talipes
Plantar aspect The medical term for under the foot is the plantar aspect. It is the padded area on the bottom of the foot, just before the toes. The bottom of the foot is also known as the sole. The front part of the plantar aspect, where the metatarsal bones are located, is sometimes called the ball of the foot. The medical term for the top of the foot is the dorsum or dorsal region
The top your foot is considered the dorsal side and so bending the foot upwards at the ankle is known as dorsiflexion.