Q66.00
✓ Billable
Congenital talipes equinovarus, unspecified foot
ICD-10-CM · FY2026 · Congenital Malformations, Deformations and Chromosomal Abnormalities
Code
Q66.00
System
ICD-10-CM
Billable
Yes — valid for submission
Effective
FY2026
Chapter
Congenital Malformations, Deformations and Chromosomal Abnormalities
Source
CMS / CDC NCHS
⚠ Verify before billing. Confirm against the current CMS/NCHS ICD-10-CM files and your payer's rules before claims submission.
Frequently asked questions
What is ICD-10 code Q66.00?
ICD-10-CM code Q66.00 represents Congenital talipes equinovarus, unspecified foot. It is a billable diagnosis code in the Congenital Malformations, Deformations and Chromosomal Abnormalities chapter, effective October 1, 2025 – September 30, 2026.
Is Q66.00 billable?
Yes. Q66.00 is a valid billable ICD-10-CM code for insurance claims and clinical documentation.
What chapter is Q66.00 in?
Q66.00 belongs to the Congenital Malformations, Deformations and Chromosomal Abnormalities chapter (Q00–Q99) of ICD-10-CM.
Related codes in the Q66 category
Q66
Congenital deformities of feet
Non-billable
Q66.0
Congenital talipes equinovarus
Non-billable
Q66.1
Congenital talipes calcaneovarus
Non-billable
Q66.2
Congenital metatarsus (primus) varus
Non-billable
Q66.3
Other congenital varus deformities of feet
Non-billable
Q66.4
Congenital talipes calcaneovalgus
Non-billable
Q66.5
Congenital pes planus
Non-billable
Q66.6
Other congenital valgus deformities of feet
Billable
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