O30.01 Twin pregnancy, monochorionic/monoamniotic

Non-billable header with 4 child codes.

Applicable to

• Twin pregnancy, one placenta, one amniotic sac

Excludes1 (never code together)

• conjoined twins (O30.02-)

Applies from O30 Multiple gestation

Code also

• any complications specific to multiple gestation

Codes under O30.01

• 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

Diagnosis Index entries for O30.01

• Pregnancy (single) (uterine) › twin › monochorionic/monoamniotic (one placenta, one amniotic sac)

Nearby codes

• 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 (this code)
• 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