Pre-eclampsia (O14) ICD-10-CM
The O14 code range covers pre-eclampsia with 25 ICD-10-CM diagnosis codes. 20 of them are billable and valid for claim submission in fiscal year 2027, and the category headers group them but cannot themselves be billed.
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.
- pre-existing hypertension with pre-eclampsia O11
Codes in the O14 Range 25 codes · 20 billable
- O14 Pre-eclampsiaNon-billable
- O14.0 Mild to moderate pre-eclampsiaNon-billable
- O14.00 Mild to moderate pre-eclampsia, unspecified trimester
- O14.02 Mild to moderate pre-eclampsia, second trimester
- O14.03 Mild to moderate pre-eclampsia, third trimester
- O14.04 Mild to moderate pre-eclampsia, complicating childbirth
- O14.05 Mild to moderate pre-eclampsia, complicating the puerperium
- O14.1 Severe pre-eclampsiaNon-billable
- O14.10 Severe pre-eclampsia, unspecified trimester
- O14.12 Severe pre-eclampsia, second trimester
- O14.13 Severe pre-eclampsia, third trimester
- O14.14 Severe pre-eclampsia complicating childbirth
- O14.15 Severe pre-eclampsia, complicating the puerperium
- O14.2 HELLP syndromeNon-billable
- O14.20 HELLP syndrome (HELLP), unspecified trimester
- O14.22 HELLP syndrome (HELLP), second trimester
- O14.23 HELLP syndrome (HELLP), third trimester
- O14.24 HELLP syndrome, complicating childbirth
- O14.25 HELLP syndrome, complicating the puerperium
- O14.9 Unspecified pre-eclampsiaNon-billable
- O14.90 Unspecified pre-eclampsia, unspecified trimester
- O14.92 Unspecified pre-eclampsia, second trimester
- O14.93 Unspecified pre-eclampsia, third trimester
- O14.94 Unspecified pre-eclampsia, complicating childbirth
- O14.95 Unspecified pre-eclampsia, complicating the puerperium
Clinical Terms in This Code Range
Definitions from the National Library of Medicine for conditions coded in the O14 range.
HELLP Syndrome
A syndrome of HEMOLYSIS, elevated liver ENZYMES, and low blood platelets count (THROMBOCYTOPENIA). HELLP syndrome is observed in PREGNANT PEOPLE with PRE-ECLAMPSIA or ECLAMPSIA who also exhibit LIVER damage and abnormalities in BLOOD COAGULATION.
Pre-Eclampsia
A complication of PREGNANCY, characterized by a complex of symptoms including maternal HYPERTENSION and PROTEINURIA with or without pathological EDEMA. Symptoms may range between mild and severe. Pre-eclampsia usually occurs after the 20th week of gestation, but may develop before this time in the presence of trophoblastic disease.
About the O14 Code Range
Pre-eclampsia is a pregnancy complication involving high blood pressure and protein in the urine, sometimes with swelling. It can also complicate childbirth or the period after birth.
O14 separates mild to moderate pre-eclampsia (O14.0), severe pre-eclampsia (O14.1), HELLP syndrome (O14.2), and unspecified pre-eclampsia (O14.9). HELLP means breakdown of red blood cells, elevated liver enzymes, and a low platelet count. Each group then separates an unspecified trimester, the second or third trimester, childbirth, and the period after birth.
Questions About This Page
How many billable codes are in the O14 range?
Of the 25 codes in this range, 20 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 O14 range classify?
The range classifies pre-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.
