Congenital metatarsus adductus, left foot

This code identifies a congenital foot deformity where the forefoot is angled inward relative to the hindfoot, specifically affecting the left foot. It is a common pediatric orthopedic condition often noted at birth, characterized by an adducted (inward-pointing) forefoot.

Apply this code for documented cases of metatarsus adductus present at birth, affecting the patient's left foot. Documentation should clearly state "congenital" and specify the affected side.

• Ensure documentation specifies "congenital" to differentiate from acquired foot deformities.
• Verify laterality; use the appropriate code for the right foot (Q66.221) or bilateral involvement (Q66.223).
• Do not confuse with talipes equinovarus (clubfoot), which involves more complex deformities of the ankle and foot.