O30.811 Other specified multiple gestation with two or more monochorionic fetuses, first trimester

Billable ICD-10-CM code, FY2026. Acts as a Complication or Comorbidity (CC) as a secondary diagnosis.

Applies from O30 Multiple gestation

Code also

• any complications specific to multiple gestation

Applies from O30.8 Other specified multiple gestation

Applicable to

• Multiple gestation pregnancy greater then quadruplets

MS-DRG index

Defines the logic of DRG(s) 817-819 in MDC 14.

Approximate ICD-9-CM (GEMs)

• 651.81 Other specified multiple gestation, delivered, with or without mention of antepartum condition (approximate)
• 651.83 Other specified multiple gestation, antepartum condition or complication (approximate)
• V91.91 Other specified multiple gestation, with two or more monochorionic fetuses (approximate)

Medicare Code Edits (MCE v43.1 (April 2026))

• Maternity diagnoses (age 9 through 64): Age conflict edit. These diagnoses are clinically expected only in patients age 9 through 64.

Nearby codes

• 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 (this code)
• 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