ICD-10-CM › O00-O9A › O30-O48 › O31.40 Continuing pregnancy after... › O31.40X2
O31.40X2
Continuing pregnancy after vanishing twin syndrome of one fetus or more, unspecified trimester, fetus 2
ValidICD-10-CM diagnosis code.
Valid for claims with a date of service in the current code year.
What has happened to this code
Every change the publisher made, from 2027 to now.
- FY2027 Added to the code set Continuing pregnancy after vanishing twin syndrome of one fetus or more, unspecified trimester, fetus 2
Official coding rules
Published by CDC for FY2027. A rule attached to a category binds every code beneath it, so the rules inherited from this code's ancestors are shown with the code they come from.
Inherited from O31 Complications specific to multiple gestation
Seventh character required
- 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.
Excludes2 - not included here
- delayed delivery of second twin, triplet, etc. (O63.2)
- malpresentation of one fetus or more (O32.9)
- placental transfusion syndromes (O43.0-)
How CDC's index refers to this code
Wording from the official alphabetic index. Much of it appears nowhere in the code description, which is why a search for the everyday phrase so often finds nothing.
- Pregnancy > high-risk
- Supervision > pregnancy
- Pregnancy > normal > high-risk
- Supervision > high-risk pregnancy
- Pregnancy > examination > high-risk
- Encounter > pregnancy > supervision of
- Pregnancy > prenatal care only > high-risk
- Pregnancy > complicated by > previous history of
- Syndrome > vanishing twin of one fetus or more
- Pregnancy > continuing following > vanishing twin syndrome of one fetus or more
Codes in the same group
| Code | Description | Status |
|---|---|---|
| O31.40X0 | Continuing pregnancy after vanishing twin syndrome of one fetus or more, unspecified trimester, not applicable or unspecified | Valid |
| O31.40X1 | Continuing pregnancy after vanishing twin syndrome of one fetus or more, unspecified trimester, fetus 1 | Valid |
| O31.40X3 | Continuing pregnancy after vanishing twin syndrome of one fetus or more, unspecified trimester, fetus 3 | Valid |
| O31.40X4 | Continuing pregnancy after vanishing twin syndrome of one fetus or more, unspecified trimester, fetus 4 | Valid |
| O31.40X5 | Continuing pregnancy after vanishing twin syndrome of one fetus or more, unspecified trimester, fetus 5 | Valid |
| O31.40X9 | Continuing pregnancy after vanishing twin syndrome of one fetus or more, unspecified trimester, other fetus | Valid |