Short answer · Medically reviewed summary · Last updated: 2026-04-07
Pre-eclampsia is most commonly referred to by its modern medical name, though it was historically known as toxemia of pregnancy. While the term pre-eclampsia is now the clinical standard, you may encounter various synonyms in older medical records or international literature that describe the same hypertensive disorder of pregnancy. What are the common synonyms and historical names for pre-eclampsia? The terminology for pre-eclampsia has evolved significantly as medical understanding of the condition has improved.
Pre-eclampsia is most commonly referred to by its modern medical name, though it was historically known as toxemia of pregnancy. While the term pre-eclampsia is now the clinical standard, you may encounter various synonyms in older medical records or international literature that describe the same hypertensive disorder of pregnancy.
The terminology for pre-eclampsia has evolved significantly as medical understanding of the condition has improved. In the early 20th century, the condition was frequently labeled as "toxemia" or "toxemia of pregnancy" because researchers erroneously believed a toxin in the mother's blood caused the symptoms. Other historical or less common terms you might find in older textbooks include:
In some international medical contexts, you may still see it referred to as gestational hypertension with proteinuria, which describes the two primary diagnostic markers: high blood pressure and protein in the urine.
Standardized medical coding is essential for consistent care and research. In the International Classification of Diseases (ICD-10 and ICD-11), pre-eclampsia is categorized under pregnancy-induced hypertension. It is important to note that pre-eclampsia is distinct from eclampsia, the latter being the onset of seizures associated with the condition. Because the DiseaseMaps community currently includes 80 people with pre-eclampsia, we recognize that patients often navigate these differing labels when reviewing their own electronic health records or insurance documentation.
The variety of names for pre-eclampsia exists primarily due to the historical evolution of obstetric science. Before blood pressure monitoring became routine in prenatal care, clinicians focused on symptoms like swelling (edema) and the presence of protein in the urine. As our clinical understanding shifted from a "toxic" theory to a placental-vascular disorder, the terminology was updated to reflect the pathophysiology more accurately. Professionals now prefer the term pre-eclampsia because it specifically identifies the pre-seizure state, allowing for earlier clinical intervention.
It is vital to distinguish pre-eclampsia from other conditions that occur during pregnancy. The following list clarifies the standard clinical distinctions:
Medical disclaimer: This content is for informational purposes only and does not constitute professional medical advice, diagnosis, or treatment; always seek the advice of your physician with any questions regarding a medical condition.