ICD-10-CM FY2027 diagnosis code

Q66.91: Congenital deformity of feet, unspecified, right foot

Billable codeValid for dates of service October 1, 2026 to September 30, 2027

Q66.91 is a billable ICD-10-CM diagnosis code for congenital deformity of feet, unspecified, right foot. It is specific enough to use on an insurance claim, a superbill or a Good Faith Estimate.

Q66.91 questions

Is Q66.91 a billable code?

Yes. Q66.91 is a billable ICD-10-CM code and can be used on claims and superbills for dates of service from October 1, 2026 to September 30, 2027.

What does Q66.91 mean?

Q66.91 is the ICD-10-CM code for Congenital deformity of feet, unspecified, right foot. 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.