O30.01 – Twin pregnancy, monochorionic/monoamniotic
ICD-10-CM 2027 diagnosis code · Maternal care related to the fetus and amniotic cavity and possible delivery problems
- Code
O30.01(claims format:O3001)- Description
- Twin pregnancy, monochorionic/monoamniotic
- Billable
- No – use a more specific code below
- Valid for
- Dates of service October 1, 2026 – September 30, 2027 (FY2027)
- Chapter
- 15. Pregnancy, childbirth and the puerperium (O00-O9A)
- Block
- O30-O48 Maternal care related to the fetus and amniotic cavity and possible delivery problems
- Parent codes
- O30 › O30.0
Billable codes under O30.01
O30.01 is a header code and cannot be used on claims. Choose the most specific code:
- O30.011 – Twin pregnancy, monochorionic/monoamniotic, first trimesterBillable
- O30.012 – Twin pregnancy, monochorionic/monoamniotic, second trimesterBillable
- O30.013 – Twin pregnancy, monochorionic/monoamniotic, third trimesterBillable
- O30.019 – Twin pregnancy, monochorionic/monoamniotic, unspecified trimesterBillable
Notes for O30.01
- Twin pregnancy, one placenta, one amniotic sac
- conjoined twins (O30.02-)
Notes inherited from parent codes
Instructional notes at a category or block level apply to every code below it.
O30 – Multiple gestation
- any complications specific to multiple gestation
Index terms for O30.01
Entries in the ICD-10-CM alphabetic index that lead to this code:
Related codes in O30.0
- O30.00 – Twin pregnancy, unspecified number of placenta and unspecified number of amniotic sacsHeader
- O30.02 – Conjoined twin pregnancyHeader
- O30.03 – Twin pregnancy, monochorionic/diamnioticHeader
- O30.04 – Twin pregnancy, dichorionic/diamnioticHeader
- O30.09 – Twin pregnancy, unable to determine number of placenta and number of amniotic sacsHeader
Frequently asked questions
What is ICD-10 code O30.01?
O30.01 is the ICD-10-CM code for twin pregnancy, monochorionic/monoamniotic, in the block O30-O48 (Maternal care related to the fetus and amniotic cavity and possible delivery problems).
Is O30.01 a billable code?
No. O30.01 is a header code with more specific child codes; report one of the billable codes listed above.
What category does O30.01 belong to?
It belongs to category O30 – Multiple gestation.
Source: CDC/NCHS ICD-10-CM FY2027 code files, tabular list and index. Reference only – code assignment must follow the official ICD-10-CM guidelines and documentation in the medical record.