ICDcodes.org
FY2027

O31.1 — Continuing pregnancy after spontaneous abortion of one fetus or more

Not billable

Is O31.1 billable?

No — O31.1 is a non-billable header code. O31.1 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 O31.1.

Billable codes under this header

O31.1 at a glance

CodeO31.1
DescriptionContinuing pregnancy after spontaneous abortion of one fetus or more
BillableNo — header code
Code setICD-10-CM FY2027
Valid for encountersOctober 1, 2026 – September 30, 2027

How is O31.1 listed in the Alphabetic Index?

These are the routes through the Alphabetic Index that lead to O31.1. They show the wording a clinician may have documented, which often differs from the Tabular description.

  • 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 O31.1 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 O31.1 to fully describe the condition. O31.1 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 O31.1, but a patient may have both at the same time. When documentation supports it, O31.1 and the excluded code may both be reported.

  • mental and behavioral disorders associated with the puerperium (F53.-)
  • obstetrical tetanus (A34)
  • postpartum necrosis of pituitary gland (E23.0)
  • puerperal osteomalacia (M83.0)

Excludes2 — not included here — inherited from O31

The conditions below are not part of O31.1, but a patient may have both at the same time. When documentation supports it, O31.1 and the excluded code may both be reported.

  • delayed delivery of second twin, triplet, etc. (O63.2)
  • malpresentation of one fetus or more (O32.9)
  • placental transfusion syndromes (O43.0-)

What codes fall under O31.1? (4)

How long has O31.1 existed?

O31.1 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 family? (5)