All ICD10 Codes

Q66.5

Non-Billable
ChapterQ00–Q99
Ranksubcategory
Official Description

Congenital pes planus

Use a more specific code (3 billable)
Q66.50Congenital pes planus, unspecified footQ66.51Congenital pes planus, right footQ66.52Congenital pes planus, left foot
Metadata & Insights
  • •Non-billable category (requires more specific sub-code).
  • •Chapter 17: Congenital Malformations, Deformations and Chromosomal Abnormalities (Q00-Q99).

Instructional Notes

Includes
  • Congenital flat foot
  • Congenital rigid flat foot
  • Congenital spastic (everted) flat foot
Excludes1(Not coded here. Use a different code.)
  • pes planus, acquired (M21.4)
General instructions are available for the parent sections:
View CH17 NotesView Q66 Notes

Clinical Hierarchy

BillableHas subcodes
CH17Congenital malformations, deformations and chromosomal abnormalities (Q00-QA0)
Q65-Q79Congenital malformations and deformations of the musculoskeletal system (Q65-Q79)
Q66Congenital deformities of feet
Q66.5Congenital pes planusNot billable
Q66.50Congenital pes planus, unspecified footBillable
Q66.51Congenital pes planus, right footBillable
Q66.52Congenital pes planus, left footBillable

Applicable Ancestor Context

The following parent sections contain instructions or notes that apply to Q66.5:

categoryQ66
Congenital deformities of feet
View context instructions
chapterCH17
Congenital malformations, deformations and chromosomal abnormalities (Q00-QA0)
View context instructions

MS-DRG Classification

2026

No direct MS-DRG triggers identified.

Cross Reference

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