Congenital absence of l up arm and forearm w hand present

This code signifies a birth defect where the left upper arm and forearm are entirely missing, but the hand on that side is present. This is a severe form of congenital limb reduction defect affecting the proximal and intermediate segments of the left upper extremity.

Apply this code when documentation clearly indicates the congenital absence of both the upper arm and forearm on the left side, with the hand still being present. This diagnosis is typically made at birth or early infancy and is supported by physical examination findings and imaging studies.

• Ensure laterality is correctly identified as "left."
• Distinguish from other congenital limb deficiencies where the hand is also absent or only a portion of the arm/forearm is missing.
• Review documentation carefully to confirm the presence of the hand, as this differentiates it from more complete agenesis.