O30.001 Twin pregnancy, unspecified number of placenta and unspecified number of amniotic sacs, first trimester

Billable ICD-10-CM code, FY2026.

Applies from O30 Multiple gestation

Code also

• any complications specific to multiple gestation

MS-DRG index

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

Approximate ICD-9-CM (GEMs)

• 651.01 Twin pregnancy, delivered, with or without mention of antepartum condition (approximate)
• 651.03 Twin pregnancy, antepartum condition or complication (approximate)
• V91.00 Twin gestation, unspecified number of placenta, unspecified number of amniotic sacs (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 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 (this code)
• 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