ICD-10-CM · Chapter 17 · Q00-QA1
Q66 Congenital deformities of feet
Excludes 1 (cannot be coded together)
- reduction defects of feet (Q72.-)
- valgus deformities (acquired) (M21.0-)
- varus deformities (acquired) (M21.1-)
Subcodes
Subcodes are listed below for reference. Detail pages are not available for chapters 11–22.
| Code | Description | Billable |
|---|---|---|
| Q66..0 | Congenital talipes equinovarus | No |
| Q66..00 | Congenital talipes equinovarus, unspecified foot | Yes |
| Q66..01 | Congenital talipes equinovarus, right foot | Yes |
| Q66..02 | Congenital talipes equinovarus, left foot | Yes |
| Q66..1 | Congenital talipes calcaneovarus | No |
| Q66..10 | Congenital talipes calcaneovarus, unspecified foot | Yes |
| Q66..11 | Congenital talipes calcaneovarus, right foot | Yes |
| Q66..12 | Congenital talipes calcaneovarus, left foot | Yes |
| Q66..2 | Congenital metatarsus (primus) varus | No |
| Q66..21 | Congenital metatarsus primus varus | No |
| Q66..211 | Congenital metatarsus primus varus, right foot | Yes |
| Q66..212 | Congenital metatarsus primus varus, left foot | Yes |
| Q66..219 | Congenital metatarsus primus varus, unspecified foot | Yes |
| Q66..22 | Congenital metatarsus adductus | No |
| Q66..221 | Congenital metatarsus adductus, right foot | Yes |
| Q66..222 | Congenital metatarsus adductus, left foot | Yes |
| Q66..229 | Congenital metatarsus adductus, unspecified foot | Yes |
| Q66..3 | Other congenital varus deformities of feet | No |
| Q66..30 | Other congenital varus deformities of feet, unspecified foot | Yes |
| Q66..31 | Other congenital varus deformities of feet, right foot | Yes |
| Q66..32 | Other congenital varus deformities of feet, left foot | Yes |
| Q66..4 | Congenital talipes calcaneovalgus | No |
| Q66..40 | Congenital talipes calcaneovalgus, unspecified foot | Yes |
| Q66..41 | Congenital talipes calcaneovalgus, right foot | Yes |
| Q66..42 | Congenital talipes calcaneovalgus, left foot | Yes |
| Q66..5 | Congenital pes planus | No |
| Q66..50 | Congenital pes planus, unspecified foot | Yes |
| Q66..51 | Congenital pes planus, right foot | Yes |
| Q66..52 | Congenital pes planus, left foot | Yes |
| Q66..6 | Other congenital valgus deformities of feet | Yes |
| Q66..7 | Congenital pes cavus | No |
| Q66..70 | Congenital pes cavus, unspecified foot | Yes |
| Q66..71 | Congenital pes cavus, right foot | Yes |
| Q66..72 | Congenital pes cavus, left foot | Yes |
| Q66..8 | Other congenital deformities of feet | No |
| Q66..80 | Congenital vertical talus deformity, unspecified foot | Yes |
| Q66..81 | Congenital vertical talus deformity, right foot | Yes |
| Q66..82 | Congenital vertical talus deformity, left foot | Yes |
| Q66..89 | Other specified congenital deformities of feet | Yes |
| Q66..9 | Congenital deformity of feet, unspecified | No |
| Q66..90 | Congenital deformity of feet, unspecified, unspecified foot | Yes |
| Q66..91 | Congenital deformity of feet, unspecified, right foot | Yes |
| Q66..92 | Congenital deformity of feet, unspecified, left foot | Yes |
Last reviewed: September 2026