ICD-10-CM O03 is the diagnosis code for Spontaneous abortion. This code falls under the section "Pregnancy with abortive outcome" within Chapter 15 — Pregnancy, childbirth and the puerperium (O00-O9A). It is a non-billable/non-specific ICD-10-CM code that should not be used for reimbursement. A more specific sub-code is required for billing. Medical coders and healthcare providers use this code to document and classify diagnoses in electronic health records, insurance claims, and clinical databases.
Always refer to the official ICD-10-CM Tabular List for complete coding guidelines. Ensure documentation supports the specificity of the code selected. When in doubt, consult a certified medical coder or the latest CMS guidelines.
Understanding where O03 sits in the ICD-10-CM classification helps ensure proper coding:
No, O03 is a non-billable/non-specific code. You should use a more specific sub-code for billing and reimbursement.
O03 is the ICD-10-CM diagnosis code for "Spontaneous abortion". It is used by healthcare providers to classify and document this condition in medical records and insurance claims.
O03 is located in Section O00-O08 — "Pregnancy with abortive outcome" within Chapter 15 of the ICD-10-CM Tabular List.
O03 has 10 sub-code(s) that provide more specific detail: O03.0, O03.1, O03.2, O03.3, O03.4 and more.
Use O03 when the patients documented diagnosis matches "Spontaneous abortion" and the clinical documentation supports this level of specificity. Always verify with the latest ICD-10-CM guidelines and payer requirements.
The ICD-10-CM code for Spontaneous abortion is O03.
No, O03 is non-billable. Use a more specific sub-code for primary diagnosis billing.
O03 is in Chapter 15 of the ICD-10-CM Tabular List.
Yes, O03 is a valid ICD-10-CM code for the 2026 fiscal year, subject to official CMS updates.