Hemorrhage in early pregnancy (O20) ICD-10-CM
The O20 code range covers hemorrhage in early pregnancy with 4 ICD-10-CM diagnosis codes. 3 of them are billable and valid for claim submission in fiscal year 2026, and the category headers group them but cannot themselves be billed.
Includes
This note appears immediately under a three character code title to further define, or give examples of, the content of the category.
- hemorrhage before completion of 20 weeks gestation
Type 1 Excludes
A type 1 excludes note is a pure excludes note. It means "NOT CODED HERE!" An Excludes1 note indicates that the code excluded should never be used at the same time as the code above the Excludes1 note. An Excludes1 is used when two conditions cannot occur together, such as a congenital form versus an acquired form of the same condition.
Codes in the O20 Range 4 codes · 3 billable
About the O20 Code Range
The ICD-10 code O20 covers hemorrhage in early pregnancy, a condition involving vaginal bleeding before the second trimester. These codes are used to specify the nature and timing of bleeding complications during early pregnancy.
The category includes O20.0, which identifies a threatened abortion—also known as threatened miscarriage across various trimesters—indicating vaginal bleeding with the risk of pregnancy loss. O20.8 labels other types of early pregnancy hemorrhages that do not fit the threatened abortion description. When the exact nature of bleeding is unclear, O20.9 applies, capturing cases described as bleeding from the female genital tract or vaginal bleeding complicating early pregnancy. Understanding these distinctions helps medical coders select the accurate ICD-10 code for early pregnancy bleeding issues, ensuring clarity in patient records and treatment planning.
Questions About This Page
How many billable codes are in the O20 range?
Of the 4 codes in this range, 3 are billable and valid for claim submission from October 1, 2025 through September 30, 2026. Category header codes group them but cannot be reported on claims.
What does the O20 range classify?
The range classifies hemorrhage in early pregnancy. Each code links to its own reference page with billing status, MS-DRG grouping, coding notes, and clinical information.
Related References
Source: CMS FY 2026 ICD-10-CM Tabular List and order file, effective October 1, 2025 through September 30, 2026.
