Displaced comminuted fx shaft of humerus, right arm, sequela

This code signifies a long-term complication or late effect stemming from a comminuted fracture of the shaft of the right humerus, where the bone fragments are no longer in their anatomical alignment. This indicates that the initial injury has healed, but residual issues related to the fracture persist. Such sequelae can include chronic pain, nonunion, malunion, nerve damage, or restricted range of motion.

This code is appropriate when a patient presents for treatment of a condition that is a direct consequence of a previously sustained, displaced comminuted fracture of the right humeral shaft. This applies to follow-up encounters occurring after the acute phase of the fracture has passed, and the current complaint is a residual problem. Examples include managing chronic pain from a healed fracture or addressing functional limitations due to malunion.

• Always use this "S" seventh character for sequela when the patient is being treated for a complication or late effect of the fracture.
• Ensure documentation clearly links the current condition to the prior right humeral shaft fracture.
• Consider additional codes for specific sequelae, such as chronic pain (G89.29), nonunion (M84.421A), or malunion (M84.421A), if applicable and supported by documentation.