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 2026, and the category headers group them but cannot themselves be billed.
Codes in the O48 Range 3 codes · 2 billable
About the O48 Code Range
The ICD-10 code O48 covers conditions related to late pregnancy, including pregnancies that extend beyond the typical gestation period. This section specifically identifies issues like post-term and prolonged pregnancies.
Codes under O48 are used to document pregnancies lasting longer than usual, which can carry higher risks for both mother and baby. O48.0 is the code for post-term pregnancy, also known as post-term delivery, post-term pregnancy of 40 to 42 weeks, baby overdue, describing pregnancies that go past 40 weeks but are less than 42 weeks. The related O48.1 code covers prolonged pregnancy, sometimes called postmaturity of fetus, referring to conditions where the pregnancy extends even beyond this timeframe. These ICD-10-CM codes help healthcare providers accurately record and manage the care of pregnancies exceeding the expected duration, improving treatment planning and monitoring of outcomes.
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, 2025 through September 30, 2026. 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 2026 ICD-10-CM Tabular List and order file, effective October 1, 2025 through September 30, 2026.
