O31.4 — Continuing pregnancy after vanishing twin syndrome of one fetus or more
Not billable
Is O31.4 billable?
No — O31.4 is a non-billable header code. O31.4 groups more specific codes and cannot be submitted on a claim. A valid ICD-10-CM code must be reported at the highest level of specificity available in its branch. Select one of the 28 billable codes beneath O31.4.
Billable codes under this header
- O31.40X0Continuing pregnancy after vanishing twin syndrome of one fetus or more, unspecified trimester, not applicable or unspecified
- O31.40X1Continuing pregnancy after vanishing twin syndrome of one fetus or more, unspecified trimester, fetus 1
- O31.40X2Continuing pregnancy after vanishing twin syndrome of one fetus or more, unspecified trimester, fetus 2
- O31.40X3Continuing pregnancy after vanishing twin syndrome of one fetus or more, unspecified trimester, fetus 3
- O31.40X4Continuing pregnancy after vanishing twin syndrome of one fetus or more, unspecified trimester, fetus 4
- O31.40X5Continuing pregnancy after vanishing twin syndrome of one fetus or more, unspecified trimester, fetus 5
- O31.40X9Continuing pregnancy after vanishing twin syndrome of one fetus or more, unspecified trimester, other fetus
- O31.41X0Continuing pregnancy after vanishing twin syndrome of one fetus or more, first trimester, not applicable or unspecified
- O31.41X1Continuing pregnancy after vanishing twin syndrome of one fetus or more, first trimester, fetus 1
- O31.41X2Continuing pregnancy after vanishing twin syndrome of one fetus or more, first trimester, fetus 2
- O31.41X3Continuing pregnancy after vanishing twin syndrome of one fetus or more, first trimester, fetus 3
- O31.41X4Continuing pregnancy after vanishing twin syndrome of one fetus or more, first trimester, fetus 4
- O31.41X5Continuing pregnancy after vanishing twin syndrome of one fetus or more, first trimester, fetus 5
- O31.41X9Continuing pregnancy after vanishing twin syndrome of one fetus or more, first trimester, other fetus
- O31.42X0Continuing pregnancy after vanishing twin syndrome of one fetus or more, second trimester, not applicable or unspecified
- O31.42X1Continuing pregnancy after vanishing twin syndrome of one fetus or more, second trimester, fetus 1
- O31.42X2Continuing pregnancy after vanishing twin syndrome of one fetus or more, second trimester, fetus 2
- O31.42X3Continuing pregnancy after vanishing twin syndrome of one fetus or more, second trimester, fetus 3
- O31.42X4Continuing pregnancy after vanishing twin syndrome of one fetus or more, second trimester, fetus 4
- O31.42X5Continuing pregnancy after vanishing twin syndrome of one fetus or more, second trimester, fetus 5
- O31.42X9Continuing pregnancy after vanishing twin syndrome of one fetus or more, second trimester, other fetus
- O31.43X0Continuing pregnancy after vanishing twin syndrome of one fetus or more, third trimester, not applicable or unspecified
- O31.43X1Continuing pregnancy after vanishing twin syndrome of one fetus or more, third trimester, fetus 1
- O31.43X2Continuing pregnancy after vanishing twin syndrome of one fetus or more, third trimester, fetus 2
- O31.43X3Continuing pregnancy after vanishing twin syndrome of one fetus or more, third trimester, fetus 3
- O31.43X4Continuing pregnancy after vanishing twin syndrome of one fetus or more, third trimester, fetus 4
- O31.43X5Continuing pregnancy after vanishing twin syndrome of one fetus or more, third trimester, fetus 5
- O31.43X9Continuing pregnancy after vanishing twin syndrome of one fetus or more, third trimester, other fetus
O31.4 at a glance
| Code | O31.4 |
|---|---|
| Description | Continuing pregnancy after vanishing twin syndrome of one fetus or more |
| Billable | No — header code |
| Code set | ICD-10-CM FY2027 |
| Valid for encounters | October 1, 2026 – September 30, 2027 |
How is O31.4 listed in the Alphabetic Index?
These are the routes through the Alphabetic Index that lead to O31.4. They show the wording a clinician may have documented, which often differs from the Tabular description.
- Syndrome › vanishing twin of one fetus or more
- Pregnancy › continuing following › vanishing twin syndrome of one fetus or more (single) (uterine)
Excludes1 — never code together — inherited from Chapter 15
The conditions below can never be reported together with O31.4 on the same claim. An Excludes1 note means the two conditions cannot occur in the same patient, so reporting both is a coding error.
- supervision of normal pregnancy (Z34.-)
Use additional code — inherited from Chapter 15
Report an additional code alongside O31.4 to fully describe the condition. O31.4 is sequenced first.
- code, if applicable, from category Z3A, Weeks of gestation, to identify the specific week of the pregnancy, if known.
Excludes2 — not included here — inherited from Chapter 15
The conditions below are not part of O31.4, but a patient may have both at the same time. When documentation supports it, O31.4 and the excluded code may both be reported.
Excludes2 — not included here — inherited from O31
The conditions below are not part of O31.4, but a patient may have both at the same time. When documentation supports it, O31.4 and the excluded code may both be reported.
What codes fall under O31.4? (4)
- O31.40Continuing pregnancy after vanishing twin syndrome of one fetus or more, unspecified trimesternot billable
- O31.41Continuing pregnancy after vanishing twin syndrome of one fetus or more, first trimesternot billable
- O31.42Continuing pregnancy after vanishing twin syndrome of one fetus or more, second trimesternot billable
- O31.43Continuing pregnancy after vanishing twin syndrome of one fetus or more, third trimesternot billable
What other codes are in the O31 family? (5)
- O31.0Papyraceous fetusnot billable
- O31.1Continuing pregnancy after spontaneous abortion of one fetus or morenot billable
- O31.2Continuing pregnancy after intrauterine death of one fetus or morenot billable
- O31.3Continuing pregnancy after elective fetal reduction of one fetus or morenot billable
- O31.8Other complications specific to multiple gestationnot billable