Nondisp fx of proximal phalanx of thmb, init for opn fx

This code signifies a break in the bone of the thumb's proximal phalanx (the bone closest to the hand) that has not shifted out of alignment. It specifically indicates that the skin was broken at the time of injury, exposing the fracture to the outside environment. This is the initial encounter for treatment of this specific injury.

Use this code for a patient presenting for the first time with an open, nondisplaced fracture of the proximal phalanx of either the right or left thumb, where the laterality is not documented. This applies to acute injuries requiring initial evaluation and management, such as reduction, fixation, or wound care.

• Ensure documentation clearly states "nondisplaced" and "open fracture" for the proximal phalanx of the thumb.
• Only use this code for the initial encounter for treatment; subsequent care will require a different seventh character.
• If laterality (right or left thumb) is specified in the documentation, a more specific code should be selected.