Q66.8 — Other congenital deformities of feet

Not billable

Is Q66.8 billable?

No — Q66.8 is a non-billable header code. Q66.8 groups more specific codes and cannot be submitted on a claim. A valid ICD-10-CM code must be reported at the highest level of specificity available in its branch. Select one of the 4 billable codes beneath Q66.8.

Billable codes under this header

Q66.8 at a glance

Code	Q66.8
Description	Other congenital deformities of feet
Billable	No — header code
Code set	ICD-10-CM FY2027
Valid for encounters	October 1, 2026 – September 30, 2027

Excludes1 — never code together — inherited from Q66

The conditions below can never be reported together with Q66.8 on the same claim. An Excludes1 note means the two conditions cannot occur in the same patient, so reporting both is a coding error.

reduction defects of feet (Q72.-)
valgus deformities (acquired) (M21.0-)
varus deformities (acquired) (M21.1-)

Excludes2 — not included here — inherited from Chapter 17

The conditions below are not part of Q66.8, but a patient may have both at the same time. When documentation supports it, Q66.8 and the excluded code may both be reported.

inborn errors of metabolism (E70-E88)

What codes fall under Q66.8? (4)

How long has Q66.8 existed?

Q66.8 has been in ICD-10-CM since at least FY2016, the earliest fiscal year on record here.

Derived from the official order files for FY2016–FY2026. FY2017 and FY2020 publish no order file, so those years are not covered.