ICD-10-CM · Chapter 15 · O00-O9A
O31 Complications specific to multiple gestation
Excludes 2 (not included here)
- delayed delivery of second twin, triplet, etc. (O63.2)
- malpresentation of one fetus or more (O32.9)
- placental transfusion syndromes (O43.0-)
Subcodes
Subcodes are listed below for reference. Detail pages are not available for chapters 11–22.
| Code | Description | Billable |
|---|---|---|
| O31..0 | Papyraceous fetus | No |
| O31..00 | Papyraceous fetus, unspecified trimester | No |
| O31..01 | Papyraceous fetus, first trimester | No |
| O31..02 | Papyraceous fetus, second trimester | No |
| O31..03 | Papyraceous fetus, third trimester | No |
| O31..1 | Continuing pregnancy after spontaneous abortion of one fetus or more | No |
| O31..10 | Continuing pregnancy after spontaneous abortion of one fetus or more, unspecified trimester | No |
| O31..11 | Continuing pregnancy after spontaneous abortion of one fetus or more, first trimester | No |
| O31..12 | Continuing pregnancy after spontaneous abortion of one fetus or more, second trimester | No |
| O31..13 | Continuing pregnancy after spontaneous abortion of one fetus or more, third trimester | No |
| O31..2 | Continuing pregnancy after intrauterine death of one fetus or more | No |
| O31..20 | Continuing pregnancy after intrauterine death of one fetus or more, unspecified trimester | No |
| O31..21 | Continuing pregnancy after intrauterine death of one fetus or more, first trimester | No |
| O31..22 | Continuing pregnancy after intrauterine death of one fetus or more, second trimester | No |
| O31..23 | Continuing pregnancy after intrauterine death of one fetus or more, third trimester | No |
| O31..3 | Continuing pregnancy after elective fetal reduction of one fetus or more | No |
| O31..30 | Continuing pregnancy after elective fetal reduction of one fetus or more, unspecified trimester | No |
| O31..31 | Continuing pregnancy after elective fetal reduction of one fetus or more, first trimester | No |
| O31..32 | Continuing pregnancy after elective fetal reduction of one fetus or more, second trimester | No |
| O31..33 | Continuing pregnancy after elective fetal reduction of one fetus or more, third trimester | No |
| O31..4 | Continuing pregnancy after vanishing twin syndrome of one fetus or more | No |
| O31..40 | Continuing pregnancy after vanishing twin syndrome of one fetus or more, unspecified trimester | No |
| O31..41 | Continuing pregnancy after vanishing twin syndrome of one fetus or more, first trimester | No |
| O31..42 | Continuing pregnancy after vanishing twin syndrome of one fetus or more, second trimester | No |
| O31..43 | Continuing pregnancy after vanishing twin syndrome of one fetus or more, third trimester | No |
| O31..8 | Other complications specific to multiple gestation | No |
| O31..8X | Other complications specific to multiple gestation | No |
| O31..8X1 | Other complications specific to multiple gestation, first trimester | No |
| O31..8X2 | Other complications specific to multiple gestation, second trimester | No |
| O31..8X3 | Other complications specific to multiple gestation, third trimester | No |
| O31..8X9 | Other complications specific to multiple gestation, unspecified trimester | No |
Last reviewed: September 2026