Complications specific to multiple gestation (O31)

Browse all the diagnosis codes used for complications specific to multiple gestation (o31). For easy navigation, the diagnosis codes are sorted in alphabetical order and grouped by sections. Each section is clearly marked with its description, and the corresponding three-digit code range. This format makes it simple to browse diagnosis codes in this chapter or section and find what you're looking for. We've also added green checkmark icons to label billable codes, and red warning icons for non-billable ones. This makes it easy to identify which codes can be billed.

Instructional Notations

Type 2 Excludes

A type 2 excludes note represents "Not included here". An excludes2 note indicates that the condition excluded is not part of the condition represented by the code, but a patient may have both conditions at the same time. When an Excludes2 note appears under a code, it is acceptable to use both the code and the excluded code together, when appropriate.

  • delayed delivery of second twin, triplet, etc. O63.2
  • malpresentation of one fetus or more O32.9
  • placental transfusion syndromes O43.0

7th Character Note

Certain ICD-10-CM categories have applicable 7th characters. The applicable 7th character is required for all codes within the category, or as the notes in the Tabular List instruct. The 7th character must always be the 7th character in the data field. If a code that requires a 7th character is not 6 characters, a placeholder X must be used to fill in the empty characters.

  • One of the following 7th characters is to be assigned to each code under category O31. 7th character 0 is for single gestations and multiple gestations where the fetus is unspecified. 7th characters 1 through 9 are for cases of multiple gestations to identify the fetus for which the code applies. The appropriate code from category O30

7th Character

Indicates that a seventh character is to be assigned to codes in a subcategory.

  • 0 - not applicable or unspecified
  • 1 - fetus 1
  • 2 - fetus 2
  • 3 - fetus 3
  • 4 - fetus 4
  • 5 - fetus 5
  • 9 - other fetus
  • Pregnancy, childbirth and the puerperium (O00-O9A)

    • Maternal care related to the fetus and amniotic cavity and possible delivery problems (O30-O48)

        • Complications specific to multiple gestation (O31)

        • O31 Complications specific to multiple gestation
        • O31.0 Papyraceous fetus
        • O31.00 Papyraceous fetus, unspecified trimester
        • O31.00X0 Papyraceous fetus, unspecified trimester, not applicable or unspecified
        • O31.00X1 Papyraceous fetus, unspecified trimester, fetus 1
        • O31.00X2 Papyraceous fetus, unspecified trimester, fetus 2
        • O31.00X3 Papyraceous fetus, unspecified trimester, fetus 3
        • O31.00X4 Papyraceous fetus, unspecified trimester, fetus 4
        • O31.00X5 Papyraceous fetus, unspecified trimester, fetus 5
        • O31.00X9 Papyraceous fetus, unspecified trimester, other fetus
        • O31.01 Papyraceous fetus, first trimester
        • O31.01X0 Papyraceous fetus, first trimester, not applicable or unspecified
        • O31.01X1 Papyraceous fetus, first trimester, fetus 1
        • O31.01X2 Papyraceous fetus, first trimester, fetus 2
        • O31.01X3 Papyraceous fetus, first trimester, fetus 3
        • O31.01X4 Papyraceous fetus, first trimester, fetus 4
        • O31.01X5 Papyraceous fetus, first trimester, fetus 5
        • O31.01X9 Papyraceous fetus, first trimester, other fetus
        • O31.02 Papyraceous fetus, second trimester
        • O31.02X0 Papyraceous fetus, second trimester, not applicable or unspecified
        • O31.02X1 Papyraceous fetus, second trimester, fetus 1
        • O31.02X2 Papyraceous fetus, second trimester, fetus 2
        • O31.02X3 Papyraceous fetus, second trimester, fetus 3
        • O31.02X4 Papyraceous fetus, second trimester, fetus 4
        • O31.02X5 Papyraceous fetus, second trimester, fetus 5
        • O31.02X9 Papyraceous fetus, second trimester, other fetus
        • O31.03 Papyraceous fetus, third trimester
        • O31.03X0 Papyraceous fetus, third trimester, not applicable or unspecified
        • O31.03X1 Papyraceous fetus, third trimester, fetus 1
        • O31.03X2 Papyraceous fetus, third trimester, fetus 2
        • O31.03X3 Papyraceous fetus, third trimester, fetus 3
        • O31.03X4 Papyraceous fetus, third trimester, fetus 4
        • O31.03X5 Papyraceous fetus, third trimester, fetus 5
        • O31.03X9 Papyraceous fetus, third trimester, other fetus
        • O31.1 Continuing pregnancy after spontaneous abortion of one fetus or more
        • O31.10 Continuing pregnancy after spontaneous abortion of one fetus or more, unspecified trimester
        • O31.10X0 Continuing pregnancy after spontaneous abortion of one fetus or more, unspecified trimester, not applicable or unspecified
        • O31.10X1 Continuing pregnancy after spontaneous abortion of one fetus or more, unspecified trimester, fetus 1
        • O31.10X2 Continuing pregnancy after spontaneous abortion of one fetus or more, unspecified trimester, fetus 2
        • O31.10X3 Continuing pregnancy after spontaneous abortion of one fetus or more, unspecified trimester, fetus 3
        • O31.10X4 Continuing pregnancy after spontaneous abortion of one fetus or more, unspecified trimester, fetus 4
        • O31.10X5 Continuing pregnancy after spontaneous abortion of one fetus or more, unspecified trimester, fetus 5
        • O31.10X9 Continuing pregnancy after spontaneous abortion of one fetus or more, unspecified trimester, other fetus
        • O31.11 Continuing pregnancy after spontaneous abortion of one fetus or more, first trimester
        • O31.11X0 Continuing pregnancy after spontaneous abortion of one fetus or more, first trimester, not applicable or unspecified
        • O31.11X1 Continuing pregnancy after spontaneous abortion of one fetus or more, first trimester, fetus 1
        • O31.11X2 Continuing pregnancy after spontaneous abortion of one fetus or more, first trimester, fetus 2
        • O31.11X3 Continuing pregnancy after spontaneous abortion of one fetus or more, first trimester, fetus 3
        • O31.11X4 Continuing pregnancy after spontaneous abortion of one fetus or more, first trimester, fetus 4
        • O31.11X5 Continuing pregnancy after spontaneous abortion of one fetus or more, first trimester, fetus 5
        • O31.11X9 Continuing pregnancy after spontaneous abortion of one fetus or more, first trimester, other fetus
        • O31.12 Continuing pregnancy after spontaneous abortion of one fetus or more, second trimester
        • O31.12X0 Continuing pregnancy after spontaneous abortion of one fetus or more, second trimester, not applicable or unspecified
        • O31.12X1 Continuing pregnancy after spontaneous abortion of one fetus or more, second trimester, fetus 1
        • O31.12X2 Continuing pregnancy after spontaneous abortion of one fetus or more, second trimester, fetus 2
        • O31.12X3 Continuing pregnancy after spontaneous abortion of one fetus or more, second trimester, fetus 3
        • O31.12X4 Continuing pregnancy after spontaneous abortion of one fetus or more, second trimester, fetus 4
        • O31.12X5 Continuing pregnancy after spontaneous abortion of one fetus or more, second trimester, fetus 5
        • O31.12X9 Continuing pregnancy after spontaneous abortion of one fetus or more, second trimester, other fetus
        • O31.13 Continuing pregnancy after spontaneous abortion of one fetus or more, third trimester
        • O31.13X0 Continuing pregnancy after spontaneous abortion of one fetus or more, third trimester, not applicable or unspecified
        • O31.13X1 Continuing pregnancy after spontaneous abortion of one fetus or more, third trimester, fetus 1
        • O31.13X2 Continuing pregnancy after spontaneous abortion of one fetus or more, third trimester, fetus 2
        • O31.13X3 Continuing pregnancy after spontaneous abortion of one fetus or more, third trimester, fetus 3
        • O31.13X4 Continuing pregnancy after spontaneous abortion of one fetus or more, third trimester, fetus 4
        • O31.13X5 Continuing pregnancy after spontaneous abortion of one fetus or more, third trimester, fetus 5
        • O31.13X9 Continuing pregnancy after spontaneous abortion of one fetus or more, third trimester, other fetus
        • O31.2 Continuing pregnancy after intrauterine death of one fetus or more
        • O31.20 Continuing pregnancy after intrauterine death of one fetus or more, unspecified trimester
        • O31.20X0 Continuing pregnancy after intrauterine death of one fetus or more, unspecified trimester, not applicable or unspecified
        • O31.20X1 Continuing pregnancy after intrauterine death of one fetus or more, unspecified trimester, fetus 1
        • O31.20X2 Continuing pregnancy after intrauterine death of one fetus or more, unspecified trimester, fetus 2
        • O31.20X3 Continuing pregnancy after intrauterine death of one fetus or more, unspecified trimester, fetus 3
        • O31.20X4 Continuing pregnancy after intrauterine death of one fetus or more, unspecified trimester, fetus 4
        • O31.20X5 Continuing pregnancy after intrauterine death of one fetus or more, unspecified trimester, fetus 5
        • O31.20X9 Continuing pregnancy after intrauterine death of one fetus or more, unspecified trimester, other fetus
        • O31.21 Continuing pregnancy after intrauterine death of one fetus or more, first trimester
        • O31.21X0 Continuing pregnancy after intrauterine death of one fetus or more, first trimester, not applicable or unspecified
        • O31.21X1 Continuing pregnancy after intrauterine death of one fetus or more, first trimester, fetus 1
        • O31.21X2 Continuing pregnancy after intrauterine death of one fetus or more, first trimester, fetus 2
        • O31.21X3 Continuing pregnancy after intrauterine death of one fetus or more, first trimester, fetus 3
        • O31.21X4 Continuing pregnancy after intrauterine death of one fetus or more, first trimester, fetus 4
        • O31.21X5 Continuing pregnancy after intrauterine death of one fetus or more, first trimester, fetus 5
        • O31.21X9 Continuing pregnancy after intrauterine death of one fetus or more, first trimester, other fetus
        • O31.22 Continuing pregnancy after intrauterine death of one fetus or more, second trimester
        • O31.22X0 Continuing pregnancy after intrauterine death of one fetus or more, second trimester, not applicable or unspecified
        • O31.22X1 Continuing pregnancy after intrauterine death of one fetus or more, second trimester, fetus 1
        • O31.22X2 Continuing pregnancy after intrauterine death of one fetus or more, second trimester, fetus 2
        • O31.22X3 Continuing pregnancy after intrauterine death of one fetus or more, second trimester, fetus 3
        • O31.22X4 Continuing pregnancy after intrauterine death of one fetus or more, second trimester, fetus 4
        • O31.22X5 Continuing pregnancy after intrauterine death of one fetus or more, second trimester, fetus 5
        • O31.22X9 Continuing pregnancy after intrauterine death of one fetus or more, second trimester, other fetus
        • O31.23 Continuing pregnancy after intrauterine death of one fetus or more, third trimester
        • O31.23X0 Continuing pregnancy after intrauterine death of one fetus or more, third trimester, not applicable or unspecified
        • O31.23X1 Continuing pregnancy after intrauterine death of one fetus or more, third trimester, fetus 1
        • O31.23X2 Continuing pregnancy after intrauterine death of one fetus or more, third trimester, fetus 2
        • O31.23X3 Continuing pregnancy after intrauterine death of one fetus or more, third trimester, fetus 3
        • O31.23X4 Continuing pregnancy after intrauterine death of one fetus or more, third trimester, fetus 4
        • O31.23X5 Continuing pregnancy after intrauterine death of one fetus or more, third trimester, fetus 5
        • O31.23X9 Continuing pregnancy after intrauterine death of one fetus or more, third trimester, other fetus
        • O31.3 Continuing pregnancy after elective fetal reduction of one fetus or more
        • O31.30 Continuing pregnancy after elective fetal reduction of one fetus or more, unspecified trimester
        • O31.30X0 Continuing pregnancy after elective fetal reduction of one fetus or more, unspecified trimester, not applicable or unspecified
        • O31.30X1 Continuing pregnancy after elective fetal reduction of one fetus or more, unspecified trimester, fetus 1
        • O31.30X2 Continuing pregnancy after elective fetal reduction of one fetus or more, unspecified trimester, fetus 2
        • O31.30X3 Continuing pregnancy after elective fetal reduction of one fetus or more, unspecified trimester, fetus 3
        • O31.30X4 Continuing pregnancy after elective fetal reduction of one fetus or more, unspecified trimester, fetus 4
        • O31.30X5 Continuing pregnancy after elective fetal reduction of one fetus or more, unspecified trimester, fetus 5
        • O31.30X9 Continuing pregnancy after elective fetal reduction of one fetus or more, unspecified trimester, other fetus
        • O31.31 Continuing pregnancy after elective fetal reduction of one fetus or more, first trimester
        • O31.31X0 Continuing pregnancy after elective fetal reduction of one fetus or more, first trimester, not applicable or unspecified
        • O31.31X1 Continuing pregnancy after elective fetal reduction of one fetus or more, first trimester, fetus 1
        • O31.31X2 Continuing pregnancy after elective fetal reduction of one fetus or more, first trimester, fetus 2
        • O31.31X3 Continuing pregnancy after elective fetal reduction of one fetus or more, first trimester, fetus 3
        • O31.31X4 Continuing pregnancy after elective fetal reduction of one fetus or more, first trimester, fetus 4
        • O31.31X5 Continuing pregnancy after elective fetal reduction of one fetus or more, first trimester, fetus 5
        • O31.31X9 Continuing pregnancy after elective fetal reduction of one fetus or more, first trimester, other fetus
        • O31.32 Continuing pregnancy after elective fetal reduction of one fetus or more, second trimester
        • O31.32X0 Continuing pregnancy after elective fetal reduction of one fetus or more, second trimester, not applicable or unspecified
        • O31.32X1 Continuing pregnancy after elective fetal reduction of one fetus or more, second trimester, fetus 1
        • O31.32X2 Continuing pregnancy after elective fetal reduction of one fetus or more, second trimester, fetus 2
        • O31.32X3 Continuing pregnancy after elective fetal reduction of one fetus or more, second trimester, fetus 3
        • O31.32X4 Continuing pregnancy after elective fetal reduction of one fetus or more, second trimester, fetus 4
        • O31.32X5 Continuing pregnancy after elective fetal reduction of one fetus or more, second trimester, fetus 5
        • O31.32X9 Continuing pregnancy after elective fetal reduction of one fetus or more, second trimester, other fetus
        • O31.33 Continuing pregnancy after elective fetal reduction of one fetus or more, third trimester
        • O31.33X0 Continuing pregnancy after elective fetal reduction of one fetus or more, third trimester, not applicable or unspecified
        • O31.33X1 Continuing pregnancy after elective fetal reduction of one fetus or more, third trimester, fetus 1
        • O31.33X2 Continuing pregnancy after elective fetal reduction of one fetus or more, third trimester, fetus 2
        • O31.33X3 Continuing pregnancy after elective fetal reduction of one fetus or more, third trimester, fetus 3
        • O31.33X4 Continuing pregnancy after elective fetal reduction of one fetus or more, third trimester, fetus 4
        • O31.33X5 Continuing pregnancy after elective fetal reduction of one fetus or more, third trimester, fetus 5
        • O31.33X9 Continuing pregnancy after elective fetal reduction of one fetus or more, third trimester, other fetus
        • O31.8 Other complications specific to multiple gestation
        • O31.8X Other complications specific to multiple gestation
        • O31.8X1 Other complications specific to multiple gestation, first trimester
        • O31.8X10 Other complications specific to multiple gestation, first trimester, not applicable or unspecified
        • O31.8X11 Other complications specific to multiple gestation, first trimester, fetus 1
        • O31.8X12 Other complications specific to multiple gestation, first trimester, fetus 2
        • O31.8X13 Other complications specific to multiple gestation, first trimester, fetus 3
        • O31.8X14 Other complications specific to multiple gestation, first trimester, fetus 4
        • O31.8X15 Other complications specific to multiple gestation, first trimester, fetus 5
        • O31.8X19 Other complications specific to multiple gestation, first trimester, other fetus
        • O31.8X2 Other complications specific to multiple gestation, second trimester
        • O31.8X20 Other complications specific to multiple gestation, second trimester, not applicable or unspecified
        • O31.8X21 Other complications specific to multiple gestation, second trimester, fetus 1
        • O31.8X22 Other complications specific to multiple gestation, second trimester, fetus 2
        • O31.8X23 Other complications specific to multiple gestation, second trimester, fetus 3
        • O31.8X24 Other complications specific to multiple gestation, second trimester, fetus 4
        • O31.8X25 Other complications specific to multiple gestation, second trimester, fetus 5
        • O31.8X29 Other complications specific to multiple gestation, second trimester, other fetus
        • O31.8X3 Other complications specific to multiple gestation, third trimester
        • O31.8X30 Other complications specific to multiple gestation, third trimester, not applicable or unspecified
        • O31.8X31 Other complications specific to multiple gestation, third trimester, fetus 1
        • O31.8X32 Other complications specific to multiple gestation, third trimester, fetus 2
        • O31.8X33 Other complications specific to multiple gestation, third trimester, fetus 3
        • O31.8X34 Other complications specific to multiple gestation, third trimester, fetus 4
        • O31.8X35 Other complications specific to multiple gestation, third trimester, fetus 5
        • O31.8X39 Other complications specific to multiple gestation, third trimester, other fetus
        • O31.8X9 Other complications specific to multiple gestation, unspecified trimester
        • O31.8X90 Other complications specific to multiple gestation, unspecified trimester, not applicable or unspecified
        • O31.8X91 Other complications specific to multiple gestation, unspecified trimester, fetus 1
        • O31.8X92 Other complications specific to multiple gestation, unspecified trimester, fetus 2
        • O31.8X93 Other complications specific to multiple gestation, unspecified trimester, fetus 3
        • O31.8X94 Other complications specific to multiple gestation, unspecified trimester, fetus 4
        • O31.8X95 Other complications specific to multiple gestation, unspecified trimester, fetus 5
        • O31.8X99 Other complications specific to multiple gestation, unspecified trimester, other fetus