2025 ICD-10-CM code Q66.40

Congenital talipes calcaneovalgus, unspecified foot.

This code should not be used on the maternal record. It is used to code the infant's condition. Acquired deformities of the foot should be coded with M21.0- or M21.1-.

Medical necessity is established by the presence of a congenital deformity of the foot impacting function. Treatment is medically necessary to improve the child's ability to walk and wear shoes and prevent long-term complications.

In simple words: A birth defect where the foot is twisted upward and outward.

Congenital talipes calcaneovalgus, unspecified foot. This condition is a congenital deformity of the foot, characterized by a combination of calcaneus (the heel is angled upward) and valgus (the foot is turned outward).

Example 1: A newborn infant is examined and found to have both feet turned upward and outward. The diagnosis of congenital talipes calcaneovalgus is made., A 6-month-old infant presents with difficulty wearing shoes due to the outward turning of her left foot. She is diagnosed with congenital talipes calcaneovalgus of the left foot (Q66.42)., A 2-year-old child has difficulty walking due to persistent congenital talipes calcaneovalgus.The child undergoes serial casting to correct the deformity.

Documentation should include a detailed description of the deformity, including the affected foot (right, left, or unspecified). Additional documentation may include imaging studies (X-rays), treatment plans (e.g., casting, surgery), and any associated conditions.

** ICD-10-CM code Q66.40 is exempt from the POA (Present on Admission) reporting requirement.

** Only Enterprise users with EHR integration can access case-specific answers. Click here to request access.