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Q66.50

Congenital pes planus, unspecified foot

Billable FY2026 2025-10-01 → 2026-09-30
This is the unspecified option. 2 more specific codes sit alongside it. Worth checking whether the documentation supports one of them.
Exclusions 4 never code together
Q66code
Excludes1
  • reduction defects of feet (Q72.-)Q72.-
  • valgus deformities (acquired) (M21.0-)M21.0-
  • varus deformities (acquired) (M21.1-)M21.1-
Q66.5code
Excludes1
  • pes planus, acquired (M21.4)M21.4

Excludes1 — never code together. The excluded condition and this one are mutually exclusive.

Instructional notes 3
Q66.5code
Inclusion terms
  • Congenital flat foot
  • Congenital rigid flat foot
  • Congenital spastic (everted) flat foot
Index entries leading here 2
  • Talipes (congenital) Q66.89
    • planus (acquired) (any degree) — see also Deformity, limb, flat foot
  • Flat
    • foot (acquired) (fixed type) (painful) (postural) — see also Deformity, limb, flat foot
      • congenital (rigid) (spastic (everted)) Q66.5
Alongside this code 2 same parent — Q66.5
Q66.51 Congenital pes planus, right foot Q66.52 Congenital pes planus, left foot
Additional references
AHA Coding Clinic® Licence required

Official coding advice for this code. Published by the American Hospital Association. Not included in this installation.

Risk adjustment

Maps to no condition category in any loaded model.

Presence is a property of the code. Untick a model to hide it everywhere.

This code

Billable
yes
Code set
FY2026
Parent
Q66.5
Block
Q65-Q79
Siblings
2

Present FY2024–FY2027.