| Full description | Other complications specific to multiple gestation, unspecified trimester, not applicable or unspecified |
| Billable | Yes |
| Chapter | Chapter 15: Pregnancy, childbirth and the puerperium (O00-O9A) |
| Section | Maternal care related to the fetus and amniotic cavity and possible delivery problems (O30-O48) |
| Parent code | O31.8X9 — Oth comp specific to multiple gestation, unsp trimester |