MCMedicalCodingSoftware
O31.41X1

O31.41X1: Continuing pregnancy after vanishing twin syndrome of one fetus or more, first trimester, fetus 1

Billable / specific codeICD-10-CM

O31.41X1 is a billable, specific ICD-10-CM code for continuing pregnancy after vanishing twin syndrome of one fetus or more, first trimester, fetus 1. It is valid for submission on a claim.

Check O31.41X1 with the rest of the claim: free scrubber

7th character "1": fetus 1

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.

0
not applicable or unspecified
1
fetus 1
2
fetus 2
3
fetus 3
4
fetus 4
5
fetus 5
9
other fetus

Excludes2 inherited from the categories above O31.41X1

Not part of this code, but both may be coded when both are present.

Written on O31: Complications specific to multiple gestation

  • delayed delivery of second twin, triplet, etc. (O63.2)
  • malpresentation of one fetus or more (O32.9)
  • placental transfusion syndromes (O43.0-)

Risk adjustment

No CMS-HCC V28 category: this code does not change a RAF score.

Code history

  • addedFY2024-FY2027

    Continuing pregnancy after vanishing twin syndrome of one fetus or more, first trimester, fetus 1

Other codes under O31.41

ICD-10-CMFY2027· effective October 1, 2026

Loaded directly from the CMS/NCHS ICD-10-CM public-domain release: see data sources and our editorial policy. If this page disagrees with the CMS tabular list, this page is wrong. Reference information for professional coders; not medical or billing advice.