Juvenile osteochondrosis of tarsus, right ankle

This code signifies a developmental disorder affecting the growth plates of the tarsal bones in the right ankle of a juvenile patient. It involves a disturbance in the ossification process, leading to avascular necrosis and subsequent fragmentation or collapse of the affected bone. This condition is typically seen in children and adolescents.

Use this code when documentation confirms a diagnosis of osteochondrosis specifically affecting the tarsal bones of the right ankle in a patient under the age of 18. Supporting documentation should include imaging reports (e.g., X-rays, MRI) demonstrating characteristic changes of osteochondrosis and a physician's diagnostic statement.

• Ensure the documentation specifies "tarsus" and "right ankle" to accurately assign this code.
• Differentiate from osteochondrosis affecting other foot bones or other forms of juvenile osteochondrosis.
• Verify the patient's age to confirm juvenile onset; adult osteochondrosis would be coded differently.