O31 — Complications specific to multiple gestation
Not billable
Is O31 billable?
No — O31 is a non-billable header code. O31 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 60 billable codes beneath O31.
Billable codes under this header
- O31.00X0Papyraceous fetus, unspecified trimester, not applicable or unspecified
- O31.00X1Papyraceous fetus, unspecified trimester, fetus 1
- O31.00X2Papyraceous fetus, unspecified trimester, fetus 2
- O31.00X3Papyraceous fetus, unspecified trimester, fetus 3
- O31.00X4Papyraceous fetus, unspecified trimester, fetus 4
- O31.00X5Papyraceous fetus, unspecified trimester, fetus 5
- O31.00X9Papyraceous fetus, unspecified trimester, other fetus
- O31.01X0Papyraceous fetus, first trimester, not applicable or unspecified
- O31.01X1Papyraceous fetus, first trimester, fetus 1
- O31.01X2Papyraceous fetus, first trimester, fetus 2
- O31.01X3Papyraceous fetus, first trimester, fetus 3
- O31.01X4Papyraceous fetus, first trimester, fetus 4
- O31.01X5Papyraceous fetus, first trimester, fetus 5
- O31.01X9Papyraceous fetus, first trimester, other fetus
- O31.02X0Papyraceous fetus, second trimester, not applicable or unspecified
- O31.02X1Papyraceous fetus, second trimester, fetus 1
- O31.02X2Papyraceous fetus, second trimester, fetus 2
- O31.02X3Papyraceous fetus, second trimester, fetus 3
- O31.02X4Papyraceous fetus, second trimester, fetus 4
- O31.02X5Papyraceous fetus, second trimester, fetus 5
- O31.02X9Papyraceous fetus, second trimester, other fetus
- O31.03X0Papyraceous fetus, third trimester, not applicable or unspecified
- O31.03X1Papyraceous fetus, third trimester, fetus 1
- O31.03X2Papyraceous fetus, third trimester, fetus 2
- O31.03X3Papyraceous fetus, third trimester, fetus 3
- O31.03X4Papyraceous fetus, third trimester, fetus 4
- O31.03X5Papyraceous fetus, third trimester, fetus 5
- O31.03X9Papyraceous fetus, third trimester, other fetus
- O31.10X0Continuing pregnancy after spontaneous abortion of one fetus or more, unspecified trimester, not applicable or unspecified
- O31.10X1Continuing pregnancy after spontaneous abortion of one fetus or more, unspecified trimester, fetus 1
- O31.10X2Continuing pregnancy after spontaneous abortion of one fetus or more, unspecified trimester, fetus 2
- O31.10X3Continuing pregnancy after spontaneous abortion of one fetus or more, unspecified trimester, fetus 3
- O31.10X4Continuing pregnancy after spontaneous abortion of one fetus or more, unspecified trimester, fetus 4
- O31.10X5Continuing pregnancy after spontaneous abortion of one fetus or more, unspecified trimester, fetus 5
- O31.10X9Continuing pregnancy after spontaneous abortion of one fetus or more, unspecified trimester, other fetus
- O31.11X0Continuing pregnancy after spontaneous abortion of one fetus or more, first trimester, not applicable or unspecified
- O31.11X1Continuing pregnancy after spontaneous abortion of one fetus or more, first trimester, fetus 1
- O31.11X2Continuing pregnancy after spontaneous abortion of one fetus or more, first trimester, fetus 2
- O31.11X3Continuing pregnancy after spontaneous abortion of one fetus or more, first trimester, fetus 3
- O31.11X4Continuing pregnancy after spontaneous abortion of one fetus or more, first trimester, fetus 4
- O31.11X5Continuing pregnancy after spontaneous abortion of one fetus or more, first trimester, fetus 5
- O31.11X9Continuing pregnancy after spontaneous abortion of one fetus or more, first trimester, other fetus
- O31.12X0Continuing pregnancy after spontaneous abortion of one fetus or more, second trimester, not applicable or unspecified
- O31.12X1Continuing pregnancy after spontaneous abortion of one fetus or more, second trimester, fetus 1
- O31.12X2Continuing pregnancy after spontaneous abortion of one fetus or more, second trimester, fetus 2
- O31.12X3Continuing pregnancy after spontaneous abortion of one fetus or more, second trimester, fetus 3
- O31.12X4Continuing pregnancy after spontaneous abortion of one fetus or more, second trimester, fetus 4
- O31.12X5Continuing pregnancy after spontaneous abortion of one fetus or more, second trimester, fetus 5
- O31.12X9Continuing pregnancy after spontaneous abortion of one fetus or more, second trimester, other fetus
- O31.13X0Continuing pregnancy after spontaneous abortion of one fetus or more, third trimester, not applicable or unspecified
- O31.13X1Continuing pregnancy after spontaneous abortion of one fetus or more, third trimester, fetus 1
- O31.13X2Continuing pregnancy after spontaneous abortion of one fetus or more, third trimester, fetus 2
- O31.13X3Continuing pregnancy after spontaneous abortion of one fetus or more, third trimester, fetus 3
- O31.13X4Continuing pregnancy after spontaneous abortion of one fetus or more, third trimester, fetus 4
- O31.13X5Continuing pregnancy after spontaneous abortion of one fetus or more, third trimester, fetus 5
- O31.13X9Continuing pregnancy after spontaneous abortion of one fetus or more, third trimester, other fetus
- O31.20X0Continuing pregnancy after intrauterine death of one fetus or more, unspecified trimester, not applicable or unspecified
- O31.20X1Continuing pregnancy after intrauterine death of one fetus or more, unspecified trimester, fetus 1
- O31.20X2Continuing pregnancy after intrauterine death of one fetus or more, unspecified trimester, fetus 2
- O31.20X3Continuing pregnancy after intrauterine death of one fetus or more, unspecified trimester, fetus 3
O31 at a glance
| Code | O31 |
|---|---|
| Description | Complications specific to multiple gestation |
| Billable | No — header code |
| Code set | ICD-10-CM FY2027 |
| Valid for encounters | October 1, 2026 – September 30, 2027 |
Excludes2 — not included here
The conditions below are not part of O31, but a patient may have both at the same time. When documentation supports it, O31 and the excluded code may both be reported.
Excludes1 — never code together — inherited from Chapter 15
The conditions below can never be reported together with O31 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 to fully describe the condition. O31 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, but a patient may have both at the same time. When documentation supports it, O31 and the excluded code may both be reported.
What codes fall under O31? (6)
- 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
- O31.4Continuing pregnancy after vanishing twin syndrome of one fetus or morenot billable
- O31.8Other complications specific to multiple gestationnot billable
How long has O31 existed?
O31 has been in ICD-10-CM since at least FY2016, the earliest fiscal year on record here.
Derived from the official order files for FY2016–FY2026. FY2017 and FY2020 publish no order file, so those years are not covered.