O30.01
Header — not billableTwin pregnancy, monochorionic/monoamniotic
The ICD-10 code for twin pregnancy, monochorionic/monoamniotic is O30.01.
O30.01 is a non-billable header code. It groups related conditions but cannot be used on its own for reimbursement — select one of the 4 more specific codes below.
Clinical notes
Excludes1 (not coded here)
An Excludes1 note is a pure exclusion: the excluded condition and this code should never be reported together, because the two conditions cannot occur at the same time (e.g. a congenital form vs. an acquired form of the same disease).
- conjoined twins (O30.02-)
Also known as
Alternate wording, synonyms, or specific conditions that fall under this code, listed to help confirm you've picked the right one.
- Twin pregnancy, one placenta, one amniotic sac
Documentation support
General coding-documentation guidance — not a substitute for payer-specific requirements or professional coding judgment.
- •This is a non-billable header code. Documentation must support a more specific child code before this diagnosis can be reported on a claim.
- •Confirm the excluded condition(s) listed above are not also present — Excludes1 conditions cannot be coded together with this one.
- •As a general rule, code to the highest level of specificity supported by the documentation in the medical record.
Related codes in this category
- O30.00Twin pregnancy, unspecified number of placenta and unspecified number of amniotic sacsnon-billable header
- O30.02Conjoined twin pregnancynon-billable header
- O30.03Twin pregnancy, monochorionic/diamnioticnon-billable header
- O30.04Twin pregnancy, dichorionic/diamnioticnon-billable header
- O30.09Twin pregnancy, unable to determine number of placenta and number of amniotic sacsnon-billable header
- O30.01Twin pregnancy, monochorionic/monoamnioticnon-billable header