O20.0Billable

Threatened abortion

Chapter
15. Pregnancy, childbirth and the puerperium
Category
O20
Effective date
October 1, 2026

Related codes in category O20

O20Hemorrhage in early pregnancyO20.8Other hemorrhage in early pregnancyYesO20.9Hemorrhage in early pregnancy, unspecifiedYes

Frequently asked questions

What is ICD-10 code O20.0?

O20.0 is an ICD-10-CM diagnosis code for Threatened abortion.

Is O20.0 a billable code?

Yes. O20.0 is billable and specific enough to be used on a claim.

What ICD-10-CM chapter is O20.0 in?

O20.0 falls under Chapter 15: Pregnancy, childbirth and the puerperium.

When did O20.0 become effective?

O20.0 has been effective since October 1, 2026, per the CMS/CDC ICD-10-CM annual release.

What other codes are related to O20.0?

O20.0 belongs to category O20, which includes 3 other codes — see the related codes list on this page.

ICD-10-CM data maintained by CDC/CMS (public domain). Always verify codes with authoritative sources before making coding or billing decisions.