O30.01
Non-Billable

Twin pregnancy, monochorionic/monoamniotic

Non-Billable / Non-Specific Code

What is Twin pregnancy, monochorionic/monoamniotic?

ICD-10-CM O30.01 is the diagnosis code for Twin pregnancy, monochorionic/monoamniotic. This code falls under the section "Maternal care related to the fetus and amniotic cavity and possible delivery problems" within Chapter 15 — Pregnancy, childbirth and the puerperium (O00-O9A). It is a non-billable/non-specific ICD-10-CM code that should not be used for reimbursement. A more specific sub-code is required for billing. Medical coders and healthcare providers use this code to document and classify diagnoses in electronic health records, insurance claims, and clinical databases.

💡 Inclusions
⛔ Excludes1

Coding Guidelines for O30.01

✅ This Code Includes

  • Twin pregnancy, one placenta, one amniotic sac

⛔ Type 1 Excludes (Never code together)

The following conditions should never be coded at the same time as O30.01. They are mutually exclusive:

  • conjoined twins (O30.02-)

ICD-10-CM Code Hierarchy

Understanding where O30.01 sits in the ICD-10-CM classification helps ensure proper coding:

Sub-Codes 4 entries
O30.011Twin pregnancy, monochorionic/monoamniotic, first trimesterBillableO30.012Twin pregnancy, monochorionic/monoamniotic, second trimesterBillableO30.013Twin pregnancy, monochorionic/monoamniotic, third trimesterBillableO30.019Twin pregnancy, monochorionic/monoamniotic, unspecified trimesterBillable
Related Codes

Frequently Asked Questions

Is O30.01 a billable ICD-10-CM code?

No, O30.01 is a non-billable/non-specific code. You should use a more specific sub-code for billing and reimbursement.

What does O30.01 mean?

O30.01 is the ICD-10-CM diagnosis code for "Twin pregnancy, monochorionic/monoamniotic". It is used by healthcare providers to classify and document this condition in medical records and insurance claims.

What is the parent code of O30.01?

The parent code of O30.01 is O30.0 ("Twin pregnancy"). O30.01 provides a more specific classification within this category.

What section is O30.01 in?

O30.01 is located in Section O30-O48 — "Maternal care related to the fetus and amniotic cavity and possible delivery problems" within Chapter 15 of the ICD-10-CM Tabular List.

What are the sub-codes of O30.01?

O30.01 has 4 sub-code(s) that provide more specific detail: O30.011, O30.012, O30.013, O30.019.

When should I use O30.01?

Use O30.01 when the patients documented diagnosis matches "Twin pregnancy, monochorionic/monoamniotic" and the clinical documentation supports this level of specificity. Always verify with the latest ICD-10-CM guidelines and payer requirements.

People Also Ask

What is the ICD-10 code for Twin pregnancy, monochorionic/monoamniotic?

The ICD-10-CM code for Twin pregnancy, monochorionic/monoamniotic is O30.01.

Can O30.01 be used for primary diagnosis?

No, O30.01 is non-billable. Use a more specific sub-code for primary diagnosis billing.

What chapter is O30.01 in?

O30.01 is in Chapter 15 of the ICD-10-CM Tabular List.

What conditions are excluded from O30.01?

Type 1 Excludes for O30.01 include: conjoined twins (O30.02-).

Is O30.01 valid for 2026?

Yes, O30.01 is a valid ICD-10-CM code for the 2026 fiscal year, subject to official CMS updates.

See Also

← PreviousO30.009Twin pregnancy, unspecified number of placenta and unspecified number of amniotic sacs, unspecified trimesterNext →O30.011Twin pregnancy, monochorionic/monoamniotic, first trimester
Code Details
O30.01
Twin pregnancy, monochorionic/monoamniotic
Non-Billable / Non-Specific Code
15 — Pregnancy, childbirth and the puerperium (O00-O9A)
O30-O48 — Maternal care related to the fetus and amniotic cavity and possible delivery problems
2026 ICD-10-CM