Oth nondisp fx of base of 1st MC bone, r hand, 7thK

This code describes a fracture at the base of the first metacarpal bone (thumb) in the right hand that is not displaced. It specifically indicates that the patient is in a later stage of treatment where the fracture has failed to heal properly, resulting in a nonunion.

This code is appropriate for follow-up encounters for a right thumb base fracture where imaging or clinical assessment confirms that the bone fragments have not united after an expected healing period. It should be used when the patient is receiving ongoing care for this specific complication, such as consideration for surgical intervention for nonunion or continued conservative management.

• Verify laterality (right hand) and the specific bone involved (base of first metacarpal).
• Ensure documentation clearly states "nonunion" as a complication of the fracture healing process.
• This code indicates a subsequent encounter; do not use for initial treatment of the fracture.