Nondisp seg fx shaft of ulna, l arm, 7thK

This code signifies a left ulnar shaft fracture that is broken into multiple pieces (segmental) and remains in its anatomical position (nondisplaced). The patient is in a subsequent phase of care, and the fracture has failed to heal properly, indicating a nonunion.

Apply this code when documenting follow-up care for a patient with a previously diagnosed left ulnar shaft fracture that is segmental and nondisplaced, and the physician has determined that the bone fragments are not uniting. This would be appropriate for patients undergoing continued treatment, such as cast changes, physical therapy, or surgical planning for the nonunion.

• Ensure documentation clearly states "left arm" and "ulna" to differentiate from radial or other arm fractures.
• Verify that the fracture is explicitly described as "segmental" and "nondisplaced."
• Confirm the encounter is for a "subsequent encounter" and the nonunion is for a "closed fracture."