ICD10BillableValid for clinical use

ICD-10 Code O03.9: Complete or unspecified spontaneous abortion without complication

O03.9 is a billable ICD-10 diagnosis code used to classify Complete or unspecified spontaneous abortion without complication in medical records and claims. You may see this code in hospital records, discharge summaries, insurance claims, encounter documentation, referrals, or other healthcare billing and coding records. ICD-10 codes are diagnosis classification codes used in healthcare records, reporting, coding workflows, and billing support. This code sits within the broader ICD-10 area for Pregnancy, childbirth and the puerperium (O00-O9A).

Reviewed by HealthAssure Clinical TeamUpdated 26 May 2026

What is this code?

ICD-10 codes are diagnosis classification codes used in healthcare records, reporting, coding workflows, and billing support. This code sits within the broader ICD-10 area for Pregnancy, childbirth and the puerperium (O00-O9A).

When is it used?

  • May be used when a clinician documents complete or unspecified spontaneous abortion without complication in a patient's medical record.
  • May appear in hospital records, claims, referrals, and clinical documentation.
  • This code can be used as a clinically usable diagnosis entry in standardized coding workflows.

What it does not mean

  • A code alone does not explain severity, treatment plan, or outcome.
  • A medical code should not be treated as a substitute for a doctor's diagnosis or advice.

Code hierarchy

chapter
15Pregnancy, childbirth and the puerperium (O00-O9A)
block
O00-O08Pregnancy with abortive outcome
category
O03Spontaneous abortion
currentO03

Official coding notes

Inclusion terms
  • Miscarriage NOS
  • Spontaneous abortion NOS

Where you may see this code

You may see this code in hospital records, discharge summaries, insurance claims, encounter documentation, referrals, or other healthcare billing and coding records.

Related specialists

ObstetricianGynecologist

Coding guidelines

Compatibility

Legacy and official ICD code match exactly.
Legacy codes
O03.9

Common synonyms

Complete or unspecified spontaneous abortion without complicationComplete or spontaneous abortion without complication

Frequently asked questions

Code details

CodeO03.9
SystemICD10
Display nameComplete or unspecified spontaneous abortion without complication
ChapterPregnancy, childbirth and the puerperium (O00-O9A)
BlockPregnancy with abortive outcome

Flags

BillableYes
Valid clinical useYes

Source

SourceICD-10
Version2026-annual
Releaseannual
Year2026

Index terms

Matched terms
Abortion(complete) (spontaneous)MiscarriageThreatened

About this content

This page is prepared by HealthAssure's clinical team using official coding standards from ICD-10. AI tools assist with drafting explanations, which are then reviewed and verified by healthcare professionals for accuracy. This content is for informational purposes and does not replace professional medical advice. Meet our team.

ICD-10 Code O03.9 for Complete or unspecified spontaneous abortion without complication | HealthAssure