Valgus deformity, not elsewhere classified, unsp ankle

This code describes an outward angulation of the ankle joint (valgus deformity) where the foot is turned away from the midline of the body. This specific code is used when the laterality of the affected ankle is not documented and the underlying cause is not specified or classifiable elsewhere.

Use this code when documentation clearly indicates a valgus deformity of the ankle, but the medical record does not specify whether it affects the right or left ankle. It is appropriate when the etiology of the deformity (e.g., congenital, post-traumatic) is not identified or is not a more specific code.

• Ensure the documentation explicitly states "ankle" to differentiate from valgus deformities of other joints.
• Avoid using this code if laterality (right or left ankle) is documented; instead, use the more specific M21.071 (right) or M21.072 (left).
• Always review for more specific codes if the underlying cause of the valgus deformity is known (e.g., congenital, post-traumatic, or associated with another condition).