Eclampsia (O15) ICD-10-CM
The O15 code range covers eclampsia with 8 ICD-10-CM diagnosis codes. 6 of them are billable and valid for claim submission in fiscal year 2027, 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.
Codes in the O15 Range 8 codes · 6 billable
- O15 EclampsiaNon-billable
- O15.0 Eclampsia complicating pregnancyNon-billable
- O15.00 Eclampsia complicating pregnancy, unspecified trimester
- O15.02 Eclampsia complicating pregnancy, second trimester
- O15.03 Eclampsia complicating pregnancy, third trimester
- O15.1 Eclampsia complicating labor
- O15.2 Eclampsia complicating the puerperium
- O15.9 Eclampsia, unspecified as to time period
Clinical Terms in This Code Range
Definitions from the National Library of Medicine for conditions coded in the O15 range.
Eclampsia
Onset of HYPERREFLEXIA; SEIZURES; or COMA in a previously diagnosed pre-eclamptic patient (PRE-ECLAMPSIA).
About the O15 Code Range
Eclampsia means the onset of overactive reflexes, seizures, or coma in someone previously diagnosed with pre-eclampsia.
The codes distinguish when eclampsia occurs. O15.0 covers pregnancy, with subdivisions for an unspecified trimester, the second trimester, and the third trimester. O15.1 covers labor, and O15.2 covers the period after childbirth. O15.9 applies when the time period is unspecified.
Questions About This Page
How many billable codes are in the O15 range?
Of the 8 codes in this range, 6 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 O15 range classify?
The range classifies eclampsia. 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.
