ICDcodes.org
FY2027

Q66.5 — Congenital pes planus

Not billable

Is Q66.5 billable?

No — Q66.5 is a non-billable header code. Q66.5 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 3 billable codes beneath Q66.5.

Q66.5 at a glance

CodeQ66.5
DescriptionCongenital pes planus
BillableNo — header code
Code setICD-10-CM FY2027
Valid for encountersOctober 1, 2026 – September 30, 2027

How is Q66.5 listed in the Alphabetic Index?

These are the routes through the Alphabetic Index that lead to Q66.5. They show the wording a clinician may have documented, which often differs from the Tabular description.

  • Flat › foot › congenital
  • Talipes › planus › congenital (congenital)

Excludes1 — never code together

The conditions below can never be reported together with Q66.5 on the same claim. An Excludes1 note means the two conditions cannot occur in the same patient, so reporting both is a coding error.

  • pes planus, acquired (M21.4)

Inclusion terms

Alternative wording in documentation that is classified to Q66.5.

  • Congenital flat foot
  • Congenital rigid flat foot
  • Congenital spastic (everted) flat foot

Excludes1 — never code together — inherited from Q66

The conditions below can never be reported together with Q66.5 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 Q66.5, but a patient may have both at the same time. When documentation supports it, Q66.5 and the excluded code may both be reported.

  • inborn errors of metabolism (E70-E88)

What codes fall under Q66.5? (3)

How long has Q66.5 existed?

Q66.5 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.

Which codes are confused with Q66.5?

ICD-10-CM declares these codes mutually exclusive with Q66.5 — exactly one of each pair can be correct for a given encounter.

Which conditions are coded to Q66.5?

What other codes are in the Q66 family? (9)