Oth nondisp fx of base of 1st MC bone, unsp hand, 7thB

This code signifies a fracture at the base of the first metacarpal bone (thumb) that is not displaced, meaning the bone fragments are still in their normal anatomical alignment. The fracture is classified as an open fracture, indicating a break in the skin overlying the fracture site, and it represents the initial treatment encounter.

This code is appropriate for documenting the first visit for a patient presenting with an open, nondisplaced fracture of the base of the first metacarpal bone, where the specific hand (left or right) is not documented. This would typically be used in emergency department or initial orthopedic consultations.

• Ensure documentation clearly specifies "open fracture" and "nondisplaced" for accurate code assignment.
• Confirm this is the patient's initial encounter for this specific injury; subsequent encounters will use different seventh characters.
• If the laterality (left or right hand) is documented, a more specific code should be selected.