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ICD-10-CM Current in FY 2027

O30.01

Twin pregnancy, monochorionic/monoamniotic

Release
FY 2027
Effective

Hierarchy

Where O30.01 sits in the official hierarchy. Each level is the code it is classified under.

  1. O30 Multiple gestation
  2. O30.0 Parent Twin pregnancy
  3. O30.01 This code Twin pregnancy, monochorionic/monoamniotic

Official Coding Notes

Reproduced verbatim from the FY 2027 ICD-10-CM files. Notes labelled as inherited are declared on a parent code and apply here too.

Inclusion Terms

Twin pregnancy, one placenta, one amniotic sac

Excludes1

conjoined twins ( O30.02- )

Code Also

any complications specific to multiple gestation

Inherited from O30 — Multiple gestation

More Specific Codes

4 codes under O30.01

Version History

How O30.01 appears in each release imported from the official files, newest first.

  1. FY 2027 Effective

    Current

    Twin pregnancy, monochorionic/monoamniotic

  2. FY 2026 Effective

    Unchanged

    Twin pregnancy, monochorionic/monoamniotic

Other codes under O30.0

Data Source

Code information on this page is derived from the FY 2027 ICD-10-CM files published by CDC NCHS and CMS.

Release
FY 2027
Effective
Source file
icd10cm-code-descriptions-2027.zip

Official ICD-10-CM source files (opens in a new tab)

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