Q66.51

Congenital pes planus, right foot

Billable code

This code does not map to a risk-adjusting HCC in the loaded models.

Coding notes

Excludes 1 never coded together · Excludes 2 may co-exist

Inherited from Q66.5Congenital pes planus
Excludes 1

pes planus, acquired (M21.4)

Synonyms

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

Inherited from Q66Congenital deformities of feet
Excludes 1

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

Inherited from chapter 17Congenital malformations, deformations and chromosomal abnormalities
Excludes 2

inborn errors of metabolism (E70-E88)

Note

Codes from this chapter are not for use on maternal records

Official Guidelines for Q66.51

FY 2026 ›
I.C.17Chapter-specific guidanceChapter 17: Congenital malformations, deformations, and chromosomal abnormalities (Q00-QA1)

Sections that reference Q66.51

Sections whose FY 2026 text names Q66.51, its Q66 category, or a range containing it — the chapter guidance above is the authoritative source.