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O31.41 ICD-10-CM Code: Continuing pregnancy after vanishing twin syndrome of one fetus or more, first trimester

Billing Status: NO. This is a clinician non-billable / parent hierarchy grouping in the ICD-10-CM system.

Code Set: New for FY2027 — not valid before October 1, 2026.

Code Overview

No additional overview provided for this record.

Official Tabular Instructional Notes

Sequencing, inclusion, and exclusion notes published for O31.41 in the official ICD-10-CM tabular list.

Notes without a marker are published on O31.41 itself; “inherited from” names the category or block whose note applies here.

Excludes2 — Not Included Here

Conditions not covered by this code, but which may be reported alongside it when both are present.

Change history

  • Upcoming · effective FY2027 — October 1, 2026
    Will be added to the code set
    Continuing pregnancy after vanishing twin syndrome of one fetus or more, first trimester
    FY2027 changes

Verify Before Coding

  • Not billable as written — a more specific code is required: O31.41X0, O31.41X1, O31.41X2, O31.41X3, O31.41X4.
  • Requires a 7th character. "One of the following 7th characters is to be assigned to each code under category O31. 7th character 0 is for single gestations and multiple gestations where the fetus is unspecified. 7th characters 1 through 9 are for cases of multiple gestations to identify the fetus for which the code applies. The appropriate code from category O30, Multiple gestation, must also be assigned when assigning a code from category O31 that has a 7th character of 1 through 9." Options: O31.41X0, O31.41X1, O31.41X2, O31.41X3, O31.41X4, O31.41X5

From the code registry, the Medicare Code Editor, and the MS-DRG Definitions Manual. Check it against a full claim in Claim Check.

Contextual Map

Every relationship of O31.41 in one view: hierarchy, official tabular instructions in both directions, clinical classification, risk adjustment, MS-DRG participation, index terms and change history — each edge carrying the CMS source it derives from.

Hierarchy

Nearest codes (40)

Change history

Frequently Asked Questions (FAQ) & Clinical Guidance

Can O31.41 be billed directly?

No. O31.41 (Continuing pregnancy after vanishing twin syndrome of one fetus or more, first trimester) is a non-billable ICD-10-CM category code. A more specific billable subcode must be selected based on clinical documentation.

Does O31.41 require a 7th character?

Yes. One of the following 7th characters is to be assigned to each code under category O31. 7th character 0 is for single gestations and multiple gestations where the fetus is unspecified. 7th characters 1 through 9 are for cases of multiple gestations to identify the fetus for which the code applies. The appropriate code from category O30, Multiple gestation, must also be assigned when assigning a code from category O31 that has a 7th character of 1 through 9..

Nearest Codes in This Family

Official ICD-10-CM classifications closest to O31.41 in its code family, with their registry titles.

View all codes in the O31 family