2027 ICD-10-CM Diagnosis Code O30Multiple gestation

ICD-10-CM Codes›O00-O9A›O30-O48›O30

ICD-10-CM O30
CMSSource: CMS FY 2027 ICD-10-CM dataset · Effective Oct 1, 2026 – Sep 30, 2027

O30 is a non-billable ICD-10-CM category code for multiple gestation, so it cannot be submitted on claims. Use a more specific code from this category instead, such as O30.001, O30.002, O30.003, and O30.009.

Code Identity

ICD-10-CM Code
O30
Billable Status
No — Non-Billable Category
Code Describes
Multiple gestation
Short Description
Multiple gestation
Same as the full description in the CMS dataset.
Chapter
O30-O48
Maternal care related to the fetus and amniotic cavity and possible delivery problems

Code Classification

ChapterO00-O9APregnancy, childbirth and the puerperium
SectionO30-O48Maternal care related to the fetus and amniotic cavity and possible delivery problems
CategoryO30Multiple gestation
This CodeO30Multiple gestation

Specific Coding for Multiple gestationOverview

Non-specific codes like O30 require more characters. Use one of these billable codes instead:

  • O30.0 for Twin pregnancy

  • O30.00 for Twin pregnancy, unspecified number of placenta and unspecified number of amniotic sacs

  • O30.01 for Twin pregnancy, monochorionic/monoamniotic

  • O30.02 for Conjoined twin pregnancy

  • O30.03 for Twin pregnancy, monochorionic/diamniotic

  • O30.04 for Twin pregnancy, dichorionic/diamniotic

  • O30.09 for Twin pregnancy, unable to determine number of placenta and number of amniotic sacs

  • O30.1 for Triplet pregnancy

  • O30.10 for Triplet pregnancy, unspecified number of placenta and unspecified number of amniotic sacs

  • O30.11 for Triplet pregnancy with two or more monochorionic fetuses

  • O30.12 for Triplet pregnancy with two or more monoamniotic fetuses

  • O30.13 for Triplet pregnancy, trichorionic/triamniotic

  • O30.19 for Triplet pregnancy, unable to determine number of placenta and number of amniotic sacs

  • O30.2 for Quadruplet pregnancy

  • O30.20 for Quadruplet pregnancy, unspecified number of placenta and unspecified number of amniotic sacs

  • O30.21 for Quadruplet pregnancy with two or more monochorionic fetuses

  • O30.22 for Quadruplet pregnancy with two or more monoamniotic fetuses

  • O30.23 for Quadruplet pregnancy, quadrachorionic/quadra-amniotic

  • O30.29 for Quadruplet pregnancy, unable to determine number of placenta and number of amniotic sacs

  • O30.8 for Other specified multiple gestation

  • O30.80 for Other specified multiple gestation, unspecified number of placenta and unspecified number of amniotic sacs

  • O30.81 for Other specified multiple gestation with two or more monochorionic fetuses

  • O30.82 for Other specified multiple gestation with two or more monoamniotic fetuses

  • O30.83 for Other specified multiple gestation, number of chorions and amnions are both equal to the number of fetuses

  • O30.89 for Other specified multiple gestation, unable to determine number of placenta and number of amniotic sacs

  • O30.9 for Multiple gestation, unspecified

  • Use O30.90 for Multiple gestation, unspecified, unspecified trimester

  • Use O30.91 for Multiple gestation, unspecified, first trimester

  • Use O30.92 for Multiple gestation, unspecified, second trimester

  • Use O30.93 for Multiple gestation, unspecified, third trimester

Instructional NotesGuidance

Instructions from the official ICD-10-CM Tabular List that apply to O30: its own notes plus those printed at Chapter 15. A note printed at a category, block or chapter applies to every code under it.

Excludes1

Not coded here: the excluded code is never reported together with this one, unless the two conditions are unrelated.

From Chapter 15 (O00-O9A) Pregnancy, childbirth and the puerperium applies to 2,481 codes
  • supervision of normal pregnancy (Z34.-)

Excludes2

Not included here: the excluded condition is not part of this code, but a patient may have both, so both codes may be reported.

From Chapter 15 (O00-O9A) Pregnancy, childbirth and the puerperium applies to 2,481 codes
  • mental and behavioral disorders associated with the puerperium (F53.-)
  • obstetrical tetanus (A34)
  • postpartum necrosis of pituitary gland (E23.0)
  • puerperal osteomalacia (M83.0)

Use Additional Code

Add a second code, after this one, to fully describe the condition.

From Chapter 15 (O00-O9A) Pregnancy, childbirth and the puerperium applies to 2,481 codes
  • code, if applicable, from category Z3A, Weeks of gestation, to identify the specific week of the pregnancy, if known.

Code Also

A second code may be needed to fully describe the condition; the note gives no sequencing direction.

  • any complications specific to multiple gestation

Notes

General instructions on how these codes are used.

From Chapter 15 (O00-O9A) Pregnancy, childbirth and the puerperium applies to 2,481 codes
  • CODES FROM THIS CHAPTER ARE FOR USE ONLY ON MATERNAL RECORDS, NEVER ON NEWBORN RECORDS
  • Codes from this chapter are for use for conditions related to or aggravated by the pregnancy, childbirth, or by the puerperium (maternal causes or obstetric causes)
  • Trimesters are counted from the first day of the last menstrual period. They are defined as follows:
  • 1st trimester- less than 14 weeks 0 days
  • 2nd trimester- 14 weeks 0 days to less than 28 weeks 0 days
  • 3rd trimester- 28 weeks 0 days until delivery

Source: CMS ICD-10-CM Tabular List. How to read instructional notes.

Clinical InformationClinical

  • Multiple Gestation

    a pregnancy involving twins or higher-order multiple fetuses (e.g., triplets, quadruplets).

Patient EducationClinical

Twins, Triplets, Multiple Births

If you are pregnant with more than one baby, you are far from alone. Multiple births are up in the United States. More women are having babies after age 30 and more are taking fertility drugs. Both boost the chance of carrying more than one baby. A family history of twins also makes multiples more likely.

Read the full article at MedlinePlus

Courtesy of MedlinePlus, a service of the U.S. National Library of Medicine.

Code HistoryHistory

FY 2016AddedAdded to the ICD-10-CM code setEffective October 1, 2015, the first year of ICD-10-CM.
FY 2017–2026No changes
FY 2027CurrentCurrent code set, no changesEffective October 1, 2026 through September 30, 2027.

Questions About O30Overview

What is the ICD-10 code for multiple gestation?

O30 is the ICD-10-CM category for multiple gestation, but it is a non-billable header: claims need a more specific code from this category, listed on this page.

Is O30 (Multiple gestation) a billable code?

No. This is a category header that groups the codes for multiple gestation, and headers cannot be submitted on claims. Claims for multiple gestation need a more specific code from this category, such as O30.001, O30.002, and O30.003.