| Full description | Whole chromosome monosomy, mosaicism (mitotic nondisjunction) |
| Billable | Yes |
| Chapter | Chapter 17: Congenital malformations, deformations, chromosomal abnormalities, and genetic disorders (Q00-QA1) |
| Section | Chromosomal abnormalities, not elsewhere classified (Q90-Q99) |
| Parent code | Q93 — Monosomies and deletions from the autosomes, NEC |