Salter-Harris Type IV physeal fracture of l calcaneus, 7thK

This code signifies a specific type of growth plate fracture in the left heel bone (calcaneus) that has failed to heal properly. A Salter-Harris Type IV fracture involves both the growth plate and a portion of the bone's shaft and end, and "nonunion" indicates that the bone fragments have not fused together after a period of healing.

This code is appropriate for follow-up encounters where a patient is being treated for a previously diagnosed Salter-Harris Type IV physeal fracture of the left calcaneus that has not united. This includes situations where further intervention (e.g., surgery, casting, physical therapy) is being planned or performed due to the persistent nonunion.

• Requires a seventh character "K" for subsequent encounter with nonunion.
• Ensure documentation clearly specifies "left" calcaneus and "Salter-Harris Type IV" fracture.
• Distinguish from malunion, which would use a different seventh character.