Oth fracture of unsp lumbar vertebra, subs for fx w nonunion

This code signifies a persistent failure of a previously fractured lumbar vertebra, not otherwise specified, to heal properly. The patient is currently undergoing treatment for this nonunion, indicating an ongoing management phase rather than initial injury or routine follow-up for a healed fracture.

Apply this code when documentation clearly indicates a nonunion of an unspecified lumbar vertebral fracture, and the patient is presenting for subsequent care related to this unhealed fracture. This includes follow-up appointments, imaging studies, or interventions aimed at promoting healing or managing complications of the nonunion.

• Ensure documentation explicitly states "nonunion" and specifies the lumbar region.
• This code is for subsequent encounters; an initial encounter for the fracture would use a different code.
• Always sequence this code after the primary diagnosis for the patient's current visit, if applicable.