Hallux varus (acquired)

This code describes an acquired deformity of the great toe where it deviates medially, moving away from the other toes. This condition is characterized by an abnormal angulation of the hallux at the metatarsophalangeal joint, often leading to pain and functional impairment.

Use this code for documented cases of hallux varus that developed after birth, typically due to trauma, surgery, or inflammatory conditions. Documentation should clearly state "acquired hallux varus" or describe the medial deviation of the great toe with an identified acquired etiology.

• Differentiate from congenital hallux varus, which has a different code.
• Ensure documentation specifies "acquired" to support code assignment.
• Consider additional codes for underlying causes (e.g., trauma, arthritis) or associated symptoms (e.g., pain, bunionette).