Stress fracture, unsp finger(s), subs for fx w nonunion

This code signifies a stress fracture affecting an unspecified finger, indicating a repetitive strain injury rather than an acute traumatic event. The "K" seventh character specifies that the patient is in the healing phase, but the fracture has failed to unite properly, leading to a nonunion.

Use this code for a patient presenting for follow-up care of a previously diagnosed stress fracture of an unspecified finger where imaging or clinical assessment confirms nonunion. Documentation should clearly state "stress fracture," "unspecified finger," and "nonunion" during a subsequent encounter.

• Ensure documentation specifies "stress fracture" to differentiate from acute traumatic fractures.
• The "K" seventh character is crucial for indicating a subsequent encounter with nonunion; do not confuse with "P" for malunion or "G" for routine healing.
• Confirm that the specific finger is not documented; if a specific finger is identified, a more precise code should be used.