Physeal arrest, forearm, unspecified

This code signifies the premature cessation of growth at the epiphyseal plate (physis) within the forearm, without further specification of the exact bone (radius or ulna) or laterality. This condition can lead to limb length discrepancy and angular deformities as the unaffected bone continues to grow.

Apply this code when documentation confirms a diagnosis of physeal arrest in the forearm, but the specific bone involved (radius or ulna) is not clearly identified. This diagnosis is typically made based on imaging studies such as X-rays, which show a closed physis in a skeletally immature individual.

• Avoid using this code if the specific forearm bone (radius or ulna) is documented; instead, use the more specific codes for physeal arrest of the radius or ulna.
• Ensure documentation clearly states "physeal arrest" or "premature physeal closure" in the forearm.
• Always sequence this code after any underlying cause of the physeal arrest, if known and documented (e.g., trauma, infection).