Threatened Abortion ICD-10-CM codes
ICD-10-CM codes for threatened abortion (threatened miscarriage) and bleeding in early pregnancy.
7 codes, 6 billable. FY2027, valid from October 1, 2026. In chapter 15: Pregnancy, Childbirth and the Puerperium.
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How to code Threatened Abortion
O20.0 is threatened abortion, which means bleeding before 20 completed weeks with the pregnancy still ongoing. Other early pregnancy bleeding is O20.8, and O20.9 is unspecified. Add a Z3A code for the weeks of gestation.
Bleeding after 20 weeks is antepartum hemorrhage, coded from O46.-. A completed or incomplete spontaneous abortion is coded from O03.
All Threatened Abortion codes
- O03.9Complete or unspecified spontaneous abortion without complication
- O20Hemorrhage in early pregnancy
- O20.0Threatened abortion
- O20.8Other hemorrhage in early pregnancy
- O20.9Hemorrhage in early pregnancy, unspecified
- O46.90Antepartum hemorrhage, unspecified, unspecified trimester
- Z3A.01Less than 8 weeks gestation of pregnancy
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