O31.8X2 — Other complications specific to multiple gestation, second trimester
Is O31.8X2 billable?
No — O31.8X2 is a non-billable header code. O31.8X2 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 7 billable codes beneath O31.8X2.
Billable codes under this header
- O31.8X20Other complications specific to multiple gestation, second trimester, not applicable or unspecified
- O31.8X21Other complications specific to multiple gestation, second trimester, fetus 1
- O31.8X22Other complications specific to multiple gestation, second trimester, fetus 2
- O31.8X23Other complications specific to multiple gestation, second trimester, fetus 3
- O31.8X24Other complications specific to multiple gestation, second trimester, fetus 4
- O31.8X25Other complications specific to multiple gestation, second trimester, fetus 5
- O31.8X29Other complications specific to multiple gestation, second trimester, other fetus
O31.8X2 at a glance
| Code | O31.8X2 |
|---|---|
| Description | Other complications specific to multiple gestation, second trimester |
| Billable | No — header code |
| Code set | ICD-10-CM FY2027 |
| Valid for encounters | October 1, 2026 – September 30, 2027 |
How is O31.8X2 listed in the Alphabetic Index?
The Alphabetic Index lists these routes under O31.8X, the nearest indexed parent of O31.8X2. Use them to find the family, then select the specific code.
- Pregnancy › complicated by › multiple gestations › specified complication NEC (single) (uterine)
Excludes1 — never code together — inherited from Chapter 15
The conditions below can never be reported together with O31.8X2 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 O31.8X2 to fully describe the condition. O31.8X2 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 O31.8X2, but a patient may have both at the same time. When documentation supports it, O31.8X2 and the excluded code may both be reported.
Excludes2 — not included here — inherited from O31
The conditions below are not part of O31.8X2, but a patient may have both at the same time. When documentation supports it, O31.8X2 and the excluded code may both be reported.
What codes fall under O31.8X2? (7)
- O31.8X20Other complications specific to multiple gestation, second trimester, not applicable or unspecified
- O31.8X21Other complications specific to multiple gestation, second trimester, fetus 1
- O31.8X22Other complications specific to multiple gestation, second trimester, fetus 2
- O31.8X23Other complications specific to multiple gestation, second trimester, fetus 3
- O31.8X24Other complications specific to multiple gestation, second trimester, fetus 4
- O31.8X25Other complications specific to multiple gestation, second trimester, fetus 5
- O31.8X29Other complications specific to multiple gestation, second trimester, other fetus
How long has O31.8X2 existed?
O31.8X2 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.