Incarcerated fx of med epicondyl of unsp humer, 7thK

This code signifies an avulsion fracture of the medial epicondyle of the humerus, where the bone fragment is trapped or "incarcerated." It specifically indicates that this is a subsequent encounter for a fracture that has not healed as expected (nonunion). The laterality of the humerus is unspecified.

This code is appropriate for follow-up encounters with patients diagnosed with an incarcerated avulsion fracture of the medial epicondyle who are experiencing delayed or failed healing. It should be used when the physician is managing the nonunion aspect of the fracture. This code is also applicable when the specific side (left or right) of the humerus is not documented.

• Ensure documentation clearly supports an incarcerated avulsion fracture and explicitly states nonunion.
• Verify that the encounter is a subsequent visit for fracture care, not an initial treatment.
• If laterality is specified in the documentation, select a more specific code (e.g., S42.441K for right, S42.442K for left).