Is Q66 a billable code?
No. Q66 is a header code that groups 32 more specific codes. Use one of the billable codes listed on this page instead.
ICD-10-CM FY2027 diagnosis code
Q66: Congenital deformities of feet
Header code: not billableValid for dates of service October 1, 2026 to September 30, 2027
Q66 groups related diagnoses under congenital deformities of feet. It cannot be used on a claim by itself. Choose the billable code below that matches the patient's record.
Billable codes under Q66
- Q66.00Congenital talipes equinovarus, unspecified foot
- Q66.01Congenital talipes equinovarus, right foot
- Q66.02Congenital talipes equinovarus, left foot
- Q66.10Congenital talipes calcaneovarus, unspecified foot
- Q66.11Congenital talipes calcaneovarus, right foot
- Q66.12Congenital talipes calcaneovarus, left foot
- Q66.211Congenital metatarsus primus varus, right foot
- Q66.212Congenital metatarsus primus varus, left foot
- Q66.219Congenital metatarsus primus varus, unspecified foot
- Q66.221Congenital metatarsus adductus, right foot
- Q66.222Congenital metatarsus adductus, left foot
- Q66.229Congenital metatarsus adductus, unspecified foot
- Q66.30Other congenital varus deformities of feet, unspecified foot
- Q66.31Other congenital varus deformities of feet, right foot
- Q66.32Other congenital varus deformities of feet, left foot
- Q66.40Congenital talipes calcaneovalgus, unspecified foot
- Q66.41Congenital talipes calcaneovalgus, right foot
- Q66.42Congenital talipes calcaneovalgus, left foot
- Q66.50Congenital pes planus, unspecified foot
- Q66.51Congenital pes planus, right foot
- Q66.52Congenital pes planus, left foot
- Q66.6Other congenital valgus deformities of feet
- Q66.70Congenital pes cavus, unspecified foot
- Q66.71Congenital pes cavus, right foot
- Q66.72Congenital pes cavus, left foot
- Q66.80Congenital vertical talus deformity, unspecified foot
- Q66.81Congenital vertical talus deformity, right foot
- Q66.82Congenital vertical talus deformity, left foot
- Q66.89Other specified congenital deformities of feet
- Q66.90Congenital deformity of feet, unspecified, unspecified foot
- Q66.91Congenital deformity of feet, unspecified, right foot
- Q66.92Congenital deformity of feet, unspecified, left foot
Q66 questions
What does Q66 mean?
Q66 is the ICD-10-CM code for Congenital deformities of feet. It is in chapter 17, Congenital malformations, deformations and chromosomal abnormalities (Q00-Q99).
Code titles come from the official ICD-10-CM files published by the CDC National Center for Health Statistics. Always check payer rules and the clinical record before billing.