O03 – Spontaneous abortion
ICD-10-CM 2027 diagnosis code · Pregnancy with abortive outcome
ICD-10-CM code
O03
- Code
O03(claims format:O03)- Description
- Spontaneous abortion
- Billable
- No – use a more specific code below
- 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
Billable codes under O03
O03 is a header code and cannot be used on claims. Choose the most specific code:
- O03.0 – Genital tract and pelvic infection following incomplete spontaneous abortionBillable
- O03.1 – Delayed or excessive hemorrhage following incomplete spontaneous abortionBillable
- O03.2 – Embolism following incomplete spontaneous abortionBillable
- O03.3 – Other and unspecified complications following incomplete spontaneous abortionHeader (more codes below)
- O03.4 – Incomplete spontaneous abortion without complicationBillable
- O03.5 – Genital tract and pelvic infection following complete or unspecified spontaneous abortionBillable
- O03.6 – Delayed or excessive hemorrhage following complete or unspecified spontaneous abortionBillable
- O03.7 – Embolism following complete or unspecified spontaneous abortionBillable
- O03.8 – Other and unspecified complications following complete or unspecified spontaneous abortionHeader (more codes below)
- O03.9 – Complete or unspecified spontaneous abortion without complicationBillable
Notes for O03
Includes:
- miscarriage
Notes:
- Incomplete abortion includes retained products of conception following spontaneous abortion
Notes inherited from parent codes
Instructional notes at a category or block level apply to every code below it.
Block O00-O08
Frequently asked questions
What is ICD-10 code O03?
O03 is the ICD-10-CM code for spontaneous abortion, in the block O00-O08 (Pregnancy with abortive outcome).
Is O03 a billable code?
No. O03 is a header code with more specific child codes; report one of the billable codes listed above.
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.