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O20.0

Billable

Threatened abortion

O20.0 is the ICD-10-CM code for Threatened abortion. It is a billable, specific code valid for reimbursement.

Status
Billable
Chapter
O00-O9A
Parent
O20
Edition
FY2026

O00-O9A Pregnancy, childbirth and the puerperium

What this means — in plain language

MedlinePlus · NIH

What is a miscarriage? A miscarriage is an unexpected loss of pregnancy before the 20th week. Most miscarriages happen very early in the pregnancy, often before a woman even knows she is pregnant . What causes a miscarriage? A miscarriage can happen in any pregnancy. Most miscarriages occur because the fetus doesn't develop properly. This is often linked to a genetic problem with the fetus, such as an extra or…

Read more about Miscarriage at MedlinePlus ↗

Source: U.S. National Library of Medicine (MedlinePlus). Informational only — not medical advice.

Includes

  • •Hemorrhage specified as due to threatened abortion

Frequently asked questions

What is ICD-10 code O20.0?
O20.0 is the ICD-10-CM code for "Threatened abortion". It falls under O00-O9A Pregnancy, childbirth and the puerperium.
Is O20.0 a billable code?
Yes — O20.0 is a billable, specific ICD-10-CM code valid for reimbursement.

Source: CMS ICD-10-CM FY2026. For informational purposes only — not medical advice. See our medical disclaimer.

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