O03
Non-billableSpontaneous abortion
Spontaneous abortion
This is a header/category code. For billing purposes, use a more specific child code from the list below.
Coding Notes
Includes
Conditions included under this code
- miscarriage
Excludes 1
Codes that cannot be used together with this code (mutual exclusion)
Excludes 2
Conditions not included here, but the patient may have both
Use Additional Code
Additional codes that should follow this code
- code, if applicable, from category Z3A, Weeks of gestation, to identify the specific week of the pregnancy, if known.
Child Codes (10)
O03.0Genitl trct and pelvic infection fol incmpl spon abortion
O03.1Delayed or excessive hemor following incmpl spon abortion
O03.2Embolism following incomplete spontaneous abortion
O03.3Oth and unsp comp following incomplete spontaneous abortion
O03.4Incomplete spontaneous abortion without complication
O03.5Genitl trct and pelvic infct fol complete or unsp spon abort
O03.6Delayed or excess hemor fol complete or unsp spon abortion
O03.7Embolism following complete or unsp spontaneous abortion
O03.8Oth and unsp comp following complete or unsp spon abortion
O03.9Complete or unsp spontaneous abortion without complication
ICD-11 Equivalents(1)
ICD-11 Equivalents
View full mappingCorresponding ICD-11 codes from the WHO crosswalk mapping
Also Known As / Clinical Terms(29)
UMLS
- Abortion spontaneousC0000786
- Abortion spontaneous NOSC0000786
- Abortion, SpontaneousC0000786
- Abortions spontaneousC0000786
- Abortions, SpontaneousC0000786
- MiscarriageC0000786
- Spontaneous AbortionC0000786
- Spontaneous AbortionsC0000786
- Spontaneous abortionC0000786
- Spontaneous abortion NOSC0000786
- abortion spontaneousC0000786
- abortions spontaneousC0000786
- spontaneous abortionC0000786
- spontaneous abortionsC0000786
- Early fetal demiseC4552766
- Early foetal demiseC4552766
- Miscarriage (disorder)C4552766
- Miscarriage NOSC4552766
- Miscarriage of pregnancyC4552766
- MiscarriagesC4552766
- Vaginal expulsion of fetusC4552766
- Vaginal expulsion of foetusC4552766
- Vaginal expulsion of product of conceptionC4552766
- miscarriageC4552766
- miscarriage of pregnancyC4552766
- miscarriage pregnancyC4552766
- miscarriagesC4552766
- miscarriages pregnancyC4552766
- pregnancy miscarriageC4552766
Frequently Asked Questions
What is the ICD-10 code for spontaneous abortion?
The ICD-10-CM code for spontaneous abortion is O03. The full clinical description is "Spontaneous abortion". O03 is a non-billable header code. Use a more specific child code for billing purposes.
What does ICD-10 code O03 mean?
ICD-10-CM code O03 represents “Spontaneous abortion”. It is classified under Chapter 15: Pregnancy, Childbirth and the Puerperium and is a non-billable header code. Use a more specific child code for billing purposes.
Is O03 a billable code?
No, O03 is a non-billable header code. You need to use one of its more specific child codes for billing. There are 10 child codes under O03.
What chapter is O03 in?
O03 is in Chapter 15: Pregnancy, Childbirth and the Puerperium (codes O00-O9A).
What codes cannot be used with O03?
O03 has Excludes1 notes indicating codes that cannot be used together with it, including: supervision of normal pregnancy (Z34.-); continuing pregnancy in multiple gestation after abortion of one fetus or more (O31.1-, O31.3-).
What are the subcategories under O03?
O03 has 10 child codes, including: O03.0 (Genitl trct and pelvic infection fol incmpl spon abortion), O03.1 (Delayed or excessive hemor following incmpl spon abortion), O03.2 (Embolism following incomplete spontaneous abortion), O03.3 (Oth and unsp comp following incomplete spontaneous abortion), and 6 more.
Are additional codes required with O03?
Yes, when using O03, also report: code, if applicable, from category Z3A, Weeks of gestation, to identify the specific week of the pregnancy, if known..
What are the UMLS CUIs for O03?
O03 is linked to 2 UMLS Concept Unique Identifiers: C0000786, C4552766. The UMLS (Unified Medical Language System) integrates multiple biomedical vocabularies maintained by the U.S. National Library of Medicine.
How does O03 relate to ICF functioning codes?
ICF (International Classification of Functioning, Disability and Health) codes describe how conditions like spontaneous abortion affect a person's functioning — body functions, activities, participation, and environmental factors. AutoICD provides ICF Core Sets for 12+ conditions and can map clinical text to ICF categories automatically. Browse the ICF directory to explore functioning codes.
What is the ICD-11 equivalent of O03?
O03 maps to the ICD-11 code: JA00.09 (Spontaneous abortion, complete or unspecified, without complication).
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Includes SNOMED Clinical Terms® (SNOMED CT®) used by permission of SNOMED International. Includes content from the UMLS Metathesaurus, courtesy of the U.S. National Library of Medicine.