O31.13 — Continuing pregnancy after spontaneous abortion of one fetus or more, third trimester
Is O31.13 billable?
No — O31.13 is a non-billable header code. O31.13 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 O31.13.
Billable codes under this header
- 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
O31.13 at a glance
| Code | O31.13 |
|---|---|
| Description | Continuing pregnancy after spontaneous abortion of one fetus or more, third trimester |
| Billable | No — header code |
| Code set | ICD-10-CM FY2027 |
| Valid for encounters | October 1, 2026 – September 30, 2027 |
How is O31.13 listed in the Alphabetic Index?
The Alphabetic Index lists these routes under O31.1, the nearest indexed parent of O31.13. Use them to find the family, then select the specific code.
- Pregnancy › continuing following › spontaneous abortion of one or more fetus (single) (uterine)
Excludes1 — never code together — inherited from Chapter 15
The conditions below can never be reported together with O31.13 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 O31.13 to fully describe the condition. O31.13 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 O31.13, but a patient may have both at the same time. When documentation supports it, O31.13 and the excluded code may both be reported.
Excludes2 — not included here — inherited from O31
The conditions below are not part of O31.13, but a patient may have both at the same time. When documentation supports it, O31.13 and the excluded code may both be reported.
What codes fall under O31.13? (7)
- 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
How long has O31.13 existed?
O31.13 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.
What other codes are in the O31.1 family? (3)
- O31.10Continuing pregnancy after spontaneous abortion of one fetus or more, unspecified trimesternot billable
- O31.11Continuing pregnancy after spontaneous abortion of one fetus or more, first trimesternot billable
- O31.12Continuing pregnancy after spontaneous abortion of one fetus or more, second trimesternot billable