O30.01
Non-billableTwin pregnancy, monochorionic/monoamniotic
O30.01 is the ICD-10-CM code for Twin pregnancy, monochorionic/monoamniotic. It is a non-billable category code — use a more specific child code such as O30.011 for billing.
O00-O9A Pregnancy, childbirth and the puerperium
What this means — in plain language
MedlinePlus · NIHIf you are pregnant with more than one baby, you are far from alone. Multiple births are up in the United States. More women are having babies after age 30 and more are taking fertility drugs. Both boost the chance of carrying more than one baby. A family history of twins also makes multiples more likely. Years ago, most twins came as a surprise. Now, most women know about a multiple pregnancy early. Women with…
Read more about Twins, Triplets, Multiple Births at MedlinePlus ↗Source: U.S. National Library of Medicine (MedlinePlus). Informational only — not medical advice.
Includes
- •Twin pregnancy, one placenta, one amniotic sac
Excludes1 — not coded here
- •conjoined twins (O30.02-)
Frequently asked questions
- What is ICD-10 code O30.01?
- O30.01 is the ICD-10-CM code for "Twin pregnancy, monochorionic/monoamniotic". It falls under O00-O9A Pregnancy, childbirth and the puerperium.
- Is O30.01 a billable code?
- No — O30.01 is a non-billable header code. Use a more specific child code (such as O30.011) for billing.
- What are the subcodes of O30.01?
- O30.01 has 4 more specific child codes, including O30.011, O30.012, O30.013.
- What is excluded from O30.01?
- Excludes1 (not coded here): conjoined twins (O30.02-).
Source: CMS ICD-10-CM FY2026. For informational purposes only — not medical advice. See our medical disclaimer.
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