| Billable | No — use a more specific child code |
| Chapter | Chapter 17: Congenital malformations, deformations, chromosomal abnormalities, and genetic disorders (Q00-QA1) |
| Section | Congenital malformations of genital organs (Q50-Q56) |
| Parent code | Q53.1 — Undescended testicle, unilateral |