Multiple gestation (O30)

The ICD-10 codes in the O30 section are used to classify pregnancies involving multiple fetuses. These codes cover various types of multiple gestations, including twins, triplets, quadruplets, and other higher-order pregnancies.

These codes specify details like the number of fetuses, the chorionicity (number of placentas) and amnionicity (number of amniotic sacs), as well as the pregnancy trimester. For example, the ICD-10 code O30.0 identifies a twin pregnancy, while O30.01 is for monochorionic/monoamniotic twins, and O30.02 covers conjoined twins. Synonyms such as monochorionic diamniotic twin pregnancy and twin-to-twin transfusion syndrome relate to specific codes within this range, helping coders find precise classifications. Codes like O30.1 and O30.2 denote triplet and quadruplet pregnancies, respectively, with subcategories for different placental and amniotic arrangements. Unspecified multiple gestations use codes like O30.9. These detailed codes assist healthcare professionals and coders in documenting multiple pregnancies accurately, reflecting their complexity and specific characteristics.

  • Pregnancy, childbirth and the puerperium (O00-O9A)

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

        • Multiple gestation (O30)

        • O30 Multiple gestation
        • O30.0 Twin pregnancy
        • O30.00 Twin pregnancy, unspecified number of placenta and unspecified number of amniotic sacs
        • O30.001 Twin pregnancy, unspecified number of placenta and unspecified number of amniotic sacs, first trimester
        • O30.002 Twin pregnancy, unspecified number of placenta and unspecified number of amniotic sacs, second trimester
        • O30.003 Twin pregnancy, unspecified number of placenta and unspecified number of amniotic sacs, third trimester
        • O30.009 Twin pregnancy, unspecified number of placenta and unspecified number of amniotic sacs, unspecified trimester
        • O30.01 Twin pregnancy, monochorionic/monoamniotic
        • O30.011 Twin pregnancy, monochorionic/monoamniotic, first trimester
        • O30.012 Twin pregnancy, monochorionic/monoamniotic, second trimester
        • O30.013 Twin pregnancy, monochorionic/monoamniotic, third trimester
        • O30.019 Twin pregnancy, monochorionic/monoamniotic, unspecified trimester
        • O30.02 Conjoined twin pregnancy
        • O30.021 Conjoined twin pregnancy, first trimester
        • O30.022 Conjoined twin pregnancy, second trimester
        • O30.023 Conjoined twin pregnancy, third trimester
        • O30.029 Conjoined twin pregnancy, unspecified trimester
        • O30.03 Twin pregnancy, monochorionic/diamniotic
        • O30.031 Twin pregnancy, monochorionic/diamniotic, first trimester
        • O30.032 Twin pregnancy, monochorionic/diamniotic, second trimester
        • O30.033 Twin pregnancy, monochorionic/diamniotic, third trimester
        • O30.039 Twin pregnancy, monochorionic/diamniotic, unspecified trimester
        • O30.04 Twin pregnancy, dichorionic/diamniotic
        • O30.041 Twin pregnancy, dichorionic/diamniotic, first trimester
        • O30.042 Twin pregnancy, dichorionic/diamniotic, second trimester
        • O30.043 Twin pregnancy, dichorionic/diamniotic, third trimester
        • O30.049 Twin pregnancy, dichorionic/diamniotic, unspecified trimester
        • O30.09 Twin pregnancy, unable to determine number of placenta and number of amniotic sacs
        • O30.091 Twin pregnancy, unable to determine number of placenta and number of amniotic sacs, first trimester
        • O30.092 Twin pregnancy, unable to determine number of placenta and number of amniotic sacs, second trimester
        • O30.093 Twin pregnancy, unable to determine number of placenta and number of amniotic sacs, third trimester
        • O30.099 Twin pregnancy, unable to determine number of placenta and number of amniotic sacs, unspecified trimester
        • O30.1 Triplet pregnancy
        • O30.10 Triplet pregnancy, unspecified number of placenta and unspecified number of amniotic sacs
        • O30.101 Triplet pregnancy, unspecified number of placenta and unspecified number of amniotic sacs, first trimester
        • O30.102 Triplet pregnancy, unspecified number of placenta and unspecified number of amniotic sacs, second trimester
        • O30.103 Triplet pregnancy, unspecified number of placenta and unspecified number of amniotic sacs, third trimester
        • O30.109 Triplet pregnancy, unspecified number of placenta and unspecified number of amniotic sacs, unspecified trimester
        • O30.11 Triplet pregnancy with two or more monochorionic fetuses
        • O30.111 Triplet pregnancy with two or more monochorionic fetuses, first trimester
        • O30.112 Triplet pregnancy with two or more monochorionic fetuses, second trimester
        • O30.113 Triplet pregnancy with two or more monochorionic fetuses, third trimester
        • O30.119 Triplet pregnancy with two or more monochorionic fetuses, unspecified trimester
        • O30.12 Triplet pregnancy with two or more monoamniotic fetuses
        • O30.121 Triplet pregnancy with two or more monoamniotic fetuses, first trimester
        • O30.122 Triplet pregnancy with two or more monoamniotic fetuses, second trimester
        • O30.123 Triplet pregnancy with two or more monoamniotic fetuses, third trimester
        • O30.129 Triplet pregnancy with two or more monoamniotic fetuses, unspecified trimester
        • O30.13 Triplet pregnancy, trichorionic/triamniotic
        • O30.131 Triplet pregnancy, trichorionic/triamniotic, first trimester
        • O30.132 Triplet pregnancy, trichorionic/triamniotic, second trimester
        • O30.133 Triplet pregnancy, trichorionic/triamniotic, third trimester
        • O30.139 Triplet pregnancy, trichorionic/triamniotic, unspecified trimester
        • O30.19 Triplet pregnancy, unable to determine number of placenta and number of amniotic sacs
        • O30.191 Triplet pregnancy, unable to determine number of placenta and number of amniotic sacs, first trimester
        • O30.192 Triplet pregnancy, unable to determine number of placenta and number of amniotic sacs, second trimester
        • O30.193 Triplet pregnancy, unable to determine number of placenta and number of amniotic sacs, third trimester
        • O30.199 Triplet pregnancy, unable to determine number of placenta and number of amniotic sacs, unspecified trimester
        • O30.2 Quadruplet pregnancy
        • O30.20 Quadruplet pregnancy, unspecified number of placenta and unspecified number of amniotic sacs
        • O30.201 Quadruplet pregnancy, unspecified number of placenta and unspecified number of amniotic sacs, first trimester
        • O30.202 Quadruplet pregnancy, unspecified number of placenta and unspecified number of amniotic sacs, second trimester
        • O30.203 Quadruplet pregnancy, unspecified number of placenta and unspecified number of amniotic sacs, third trimester
        • O30.209 Quadruplet pregnancy, unspecified number of placenta and unspecified number of amniotic sacs, unspecified trimester
        • O30.21 Quadruplet pregnancy with two or more monochorionic fetuses
        • O30.211 Quadruplet pregnancy with two or more monochorionic fetuses, first trimester
        • O30.212 Quadruplet pregnancy with two or more monochorionic fetuses, second trimester
        • O30.213 Quadruplet pregnancy with two or more monochorionic fetuses, third trimester
        • O30.219 Quadruplet pregnancy with two or more monochorionic fetuses, unspecified trimester
        • O30.22 Quadruplet pregnancy with two or more monoamniotic fetuses
        • O30.221 Quadruplet pregnancy with two or more monoamniotic fetuses, first trimester
        • O30.222 Quadruplet pregnancy with two or more monoamniotic fetuses, second trimester
        • O30.223 Quadruplet pregnancy with two or more monoamniotic fetuses, third trimester
        • O30.229 Quadruplet pregnancy with two or more monoamniotic fetuses, unspecified trimester
        • O30.23 Quadruplet pregnancy, quadrachorionic/quadra-amniotic
        • O30.231 Quadruplet pregnancy, quadrachorionic/quadra-amniotic, first trimester
        • O30.232 Quadruplet pregnancy, quadrachorionic/quadra-amniotic, second trimester
        • O30.233 Quadruplet pregnancy, quadrachorionic/quadra-amniotic, third trimester
        • O30.239 Quadruplet pregnancy, quadrachorionic/quadra-amniotic, unspecified trimester
        • O30.29 Quadruplet pregnancy, unable to determine number of placenta and number of amniotic sacs
        • O30.291 Quadruplet pregnancy, unable to determine number of placenta and number of amniotic sacs, first trimester
        • O30.292 Quadruplet pregnancy, unable to determine number of placenta and number of amniotic sacs, second trimester
        • O30.293 Quadruplet pregnancy, unable to determine number of placenta and number of amniotic sacs, third trimester
        • O30.299 Quadruplet pregnancy, unable to determine number of placenta and number of amniotic sacs, unspecified trimester
        • O30.8 Other specified multiple gestation
        • O30.80 Other specified multiple gestation, unspecified number of placenta and unspecified number of amniotic sacs
        • O30.801 Other specified multiple gestation, unspecified number of placenta and unspecified number of amniotic sacs, first trimester
        • O30.802 Other specified multiple gestation, unspecified number of placenta and unspecified number of amniotic sacs, second trimester
        • O30.803 Other specified multiple gestation, unspecified number of placenta and unspecified number of amniotic sacs, third trimester
        • O30.809 Other specified multiple gestation, unspecified number of placenta and unspecified number of amniotic sacs, unspecified trimester
        • O30.81 Other specified multiple gestation with two or more monochorionic fetuses
        • O30.811 Other specified multiple gestation with two or more monochorionic fetuses, first trimester
        • O30.812 Other specified multiple gestation with two or more monochorionic fetuses, second trimester
        • O30.813 Other specified multiple gestation with two or more monochorionic fetuses, third trimester
        • O30.819 Other specified multiple gestation with two or more monochorionic fetuses, unspecified trimester
        • O30.82 Other specified multiple gestation with two or more monoamniotic fetuses
        • O30.821 Other specified multiple gestation with two or more monoamniotic fetuses, first trimester
        • O30.822 Other specified multiple gestation with two or more monoamniotic fetuses, second trimester
        • O30.823 Other specified multiple gestation with two or more monoamniotic fetuses, third trimester
        • O30.829 Other specified multiple gestation with two or more monoamniotic fetuses, unspecified trimester
        • O30.83 Other specified multiple gestation, number of chorions and amnions are both equal to the number of fetuses
        • O30.831 Other specified multiple gestation, number of chorions and amnions are both equal to the number of fetuses, first trimester
        • O30.832 Other specified multiple gestation, number of chorions and amnions are both equal to the number of fetuses, second trimester
        • O30.833 Other specified multiple gestation, number of chorions and amnions are both equal to the number of fetuses, third trimester
        • O30.839 Other specified multiple gestation, number of chorions and amnions are both equal to the number of fetuses, unspecified trimester
        • O30.89 Other specified multiple gestation, unable to determine number of placenta and number of amniotic sacs
        • O30.891 Other specified multiple gestation, unable to determine number of placenta and number of amniotic sacs, first trimester
        • O30.892 Other specified multiple gestation, unable to determine number of placenta and number of amniotic sacs, second trimester
        • O30.893 Other specified multiple gestation, unable to determine number of placenta and number of amniotic sacs, third trimester
        • O30.899 Other specified multiple gestation, unable to determine number of placenta and number of amniotic sacs, unspecified trimester
        • O30.9 Multiple gestation, unspecified
        • O30.90 Multiple gestation, unspecified, unspecified trimester
        • O30.91 Multiple gestation, unspecified, first trimester
        • O30.92 Multiple gestation, unspecified, second trimester
        • O30.93 Multiple gestation, unspecified, third trimester

Instructional Notations

Code Also

A "code also" note instructs that two codes may be required to fully describe a condition, but this note does not provide sequencing direction.

  • any complications specific to multiple gestation

Clinical Terms

The following clinical terms provide additional context, helping users better understand the clinical background and common associations for each diagnosis listed in this section. Including related terms alongside ICD-10-CM codes supports coders, billers, and healthcare professionals in improving accuracy, enhancing documentation, and facilitating research or patient education.

Superfetation

The FERTILIZATION of an OVUM that takes place when a FETUS is already present in the UTERUS. Superfetation results in an unusual PREGNANCY with fetuses of different ages and sizes developing in utero simultaneously.