O02.1 – Missed abortion
ICD-10-CM 2027 diagnosis code · Pregnancy with abortive outcome
ICD-10-CM code
O02.1
- Code
O02.1(claims format:O021)- Description
- Missed abortion
- Billable
- Yes – valid for HIPAA-covered transactions
- Valid for
- Dates of service October 1, 2026 – September 30, 2027 (FY2027)
- Chapter
- 15. Pregnancy, childbirth and the puerperium (O00-O9A)
- Block
- O00-O08 Pregnancy with abortive outcome
- Parent codes
- O02
Notes for O02.1
Applicable to:
- Early fetal death, before completion of 20 weeks of gestation, with retention of dead fetus
Excludes1 (not coded here):
- failed induced abortion (O07.-)
- fetal death (intrauterine) (late) (O36.4)
- missed abortion with blighted ovum (O02.0)
- missed abortion with hydatidiform mole (O01.-)
- missed abortion with nonhydatidiform (O02.0)
- missed abortion with other abnormal products of conception (O02.8-)
- missed delivery (O36.4)
- stillbirth (P95)
Notes inherited from parent codes
Instructional notes at a category or block level apply to every code below it.
O02 – Other abnormal products of conception
Excludes1 (not coded here):
- papyraceous fetus (O31.0-)
Use additional code:
- code from category O08 to identify any associated complication.
Block O00-O08
Index terms for O02.1
Entries in the ICD-10-CM alphabetic index that lead to this code:
- Abortion, missed
- Missed, abortion
- Retention, fetus, dead, early
- Dead, fetus, retained, early pregnancy
- Retention, dead, fetus, early fetal death
- Pregnancy, complicated by, missed, abortion
- Delivery, complicated, by, fetal, death, early
- Retention, products of conception, early pregnancy
- Pregnancy, complicated by, fetal, death, early pregnancy
- Delivery, complicated, by, intrauterine fetal death, early
- Pregnancy, complicated by, death of fetus, early pregnancy
- Pregnancy, complicated by, intrauterine fetal death, early pregnancy
Related codes in O02
Frequently asked questions
What is ICD-10 code O02.1?
O02.1 is the ICD-10-CM code for missed abortion, in the block O00-O08 (Pregnancy with abortive outcome).
Is O02.1 a billable code?
Yes. O02.1 is a billable/specific code that can be used to indicate a diagnosis for reimbursement purposes.
What category does O02.1 belong to?
It belongs to category O02 – Other abnormal products of conception.
Source: CDC/NCHS ICD-10-CM FY2027 code files, tabular list and index. Reference only – code assignment must follow the official ICD-10-CM guidelines and documentation in the medical record.