Late pregnancy (O48) ICD-10-CM
The O48 code range covers late pregnancy with 3 ICD-10-CM diagnosis codes. 2 of them are billable and valid for claim submission in fiscal year 2027, and the category headers group them but cannot themselves be billed.
Codes in the O48 Range 3 codes · 2 billable
Clinical Terms in This Code Range
Definitions from the National Library of Medicine for conditions coded in the O48 range.
Post Term Pregnancy
A gestation that lasts greater than or equal to 42 weeks and 0 days.
Pregnancy, Prolonged
A term used to describe pregnancies that exceed the upper limit of a normal gestational period. In humans, a prolonged pregnancy is defined as one that extends beyond 42 weeks (294 days) after the first day of the last menstrual period (MENSTRUATION), or birth with gestational age of 41 weeks or more.
About the O48 Code Range
Late pregnancy includes pregnancies described as post-term or prolonged. The category separates O48.0 for post-term pregnancy from O48.1 for prolonged pregnancy. An overdue baby is an everyday description associated with late pregnancy.
Questions About This Page
How many billable codes are in the O48 range?
Of the 3 codes in this range, 2 are billable and valid for claim submission from October 1, 2026 through September 30, 2027. Category header codes group them but cannot be reported on claims.
What does the O48 range classify?
The range classifies late 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 2027 ICD-10-CM Tabular List and order file, effective October 1, 2026 through September 30, 2027.
