O20Header code — not billable

Hemorrhage in early pregnancy

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

Related codes in category O20

O20.0Threatened abortionYesO20.8Other hemorrhage in early pregnancyYesO20.9Hemorrhage in early pregnancy, unspecifiedYes

Frequently asked questions

What is ICD-10 code O20?

O20 is an ICD-10-CM diagnosis code for Hemorrhage in early pregnancy.

Is O20 a billable code?

No. O20 is a category/header code, not billable on its own — use one of its more specific child codes instead.

What ICD-10-CM chapter is O20 in?

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

When did O20 become effective?

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

What other codes are related to O20?

O20 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.