ICD-10-CM 2027
ICD-10 code for multiple gestation pregnancy
From the official ICD-10-CM alphabetic index entry “Pregnancy (single) (uterine) › multiple (gestation)”. Page updated September 29, 2026.
About coding multiple gestation pregnancy
The ICD-10-CM code for multiple gestation pregnancy is O30.9 (Multiple gestation, unspecified). The official index lists 8 more specific codes, so check the documentation for details such as type, cause, site or severity before settling on O30.9.
Within O30, choose O30.9 (unspecified) only when documentation doesn't support a more specific option: twin pregnancy (O30.0), triplet pregnancy (O30.1), Quadruplet pregnancy (O30.2) and other specified multiple gestation (O30.8).
To report this condition, pick the subcode that matches the documentation: O30.90 (unspecified trimester), O30.91 (first trimester), O30.92 (second trimester) and O30.93 (third trimester).
It has been part of ICD-10-CM since the code set took effect on October 1, 2015 and hasn't changed since.
More specific multiple gestation pregnancy codes (official index)
- greater than quadruplets
- specified NEC O30.80 — Other specified multiple gestation, unspecified number of placenta and unspecified number of amniotic sacs
- with
- two or more monoamniotic fetuses O30.82 — Other specified multiple gestation with two or more monoamniotic fetuses
- two or more monochorionic fetuses O30.81 — Other specified multiple gestation with two or more monochorionic fetuses
- number of chorions and amnions are both equal to the number of fetuses O30.83 — Other specified multiple gestation, number of chorions and amnions are both equal to the number of fetuses
- two or more monoamniotic fetuses O30.82 — Other specified multiple gestation with two or more monoamniotic fetuses
- two or more monochorionic fetuses O30.81 — Other specified multiple gestation with two or more monochorionic fetuses
- unable to determine number of placenta and number of amniotic sacs O30.89 — Other specified multiple gestation, unable to determine number of placenta and number of amniotic sacs
- unspecified number of placenta and unspecified number of amniotic sacs O30.80 — Other specified multiple gestation, unspecified number of placenta and unspecified number of amniotic sacs
Common questions about multiple gestation pregnancy ICD-10 codes
What is the ICD-10 code for multiple gestation pregnancy?
- O30.9 — Multiple gestation, unspecified (a header code; report a more specific subcode). More specific codes apply when the documentation supports them: O30.80, O30.82, O30.81, O30.83 and others below.
Is O30.9 billable?
- No. O30.9 is a header code. Report one of its more specific subcodes instead.