O30.01
O30.01: Twin pregnancy, monochorionic/monoamniotic
Non-billable headerICD-10-CM
O30.01 is a non-billable header ICD-10-CM code for twin pregnancy, monochorionic/monoamniotic. It cannot be billed on its own: choose one of the more specific child codes below.
Excludes1: never code together
These conditions cannot occur together. Billing both on the same encounter is a denial.
- conjoined twins (O30.02-)
Inclusion terms
Alternative wordings a physician may use in the chart for this same code.
- Twin pregnancy, one placenta, one amniotic sac
Risk adjustment
No CMS-HCC V28 category: this code does not change a RAF score.
Code history
Unchanged in every release from FY2024 to FY2027.
Code to one of these instead O30.01
4 child codes. Green means billable.
Other codes under O30.0
- O30.00Twin pregnancy, unspecified number of placenta and unspecified number of amniotic sacs
- O30.02Conjoined twin pregnancy
- O30.03Twin pregnancy, monochorionic/diamniotic
- O30.04Twin pregnancy, dichorionic/diamniotic
- O30.09Twin pregnancy, unable to determine number of placenta and number of amniotic sacs