ICDcodes.org
FY2027

O03 — Spontaneous abortion

Not billable

Is O03 billable?

No — O03 is a non-billable header code. O03 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 O03.

Billable codes under this header

O03 at a glance

CodeO03
DescriptionSpontaneous abortion
BillableNo — header code
Code setICD-10-CM FY2027
Valid for encountersOctober 1, 2026 – September 30, 2027

Includes

Conditions classified to O03.

  • miscarriage

Note

  • Incomplete abortion includes retained products of conception following spontaneous abortion

Excludes1 — never code together — inherited from Chapter 15

The conditions below can never be reported together with O03 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.-)

Excludes1 — never code together — inherited from O00-O08

The conditions below can never be reported together with O03 on the same claim. An Excludes1 note means the two conditions cannot occur in the same patient, so reporting both is a coding error.

  • continuing pregnancy in multiple gestation after abortion of one fetus or more (O31.1-, O31.3-)

Use additional code — inherited from Chapter 15

Report an additional code alongside O03 to fully describe the condition. O03 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 O03, but a patient may have both at the same time. When documentation supports it, O03 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)

What codes fall under O03? (10)

How long has O03 existed?

O03 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.

Which codes are confused with O03?

ICD-10-CM declares these codes mutually exclusive with O03 — exactly one of each pair can be correct for a given encounter.