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Start free with EleplanFamilial gestational hyperthyroidism
ORPHA:99819Disease
What it is
A rare genetic hyperthyroidism characterized by hyperemesis gravidarum associated with hyperthyroidism due to hypersensitivity of the thyrotropin receptor to chorionic gonadotropin, in the absence of abnormally high serum chorionic gonadotropin levels. Clinical manifestations include severe nausea, vomiting, weight loss, tachycardia, excessive sweating, and hand tremor, but no signs of ophthalmopathy.
Key facts
- Age of onset
- Adolescent, Adult
- Inheritance
- Autosomal dominant
- Classified as
- Disease
Signs and symptoms
Always100%
3Very common80–99%
6These ranges are how often a sign appears across everyone diagnosed, not a prediction for one person — most people have some of these and not others. Orphanet also records findings that are specifically absent in this disease; those are in the data but not listed here.
Gene
ICD-10 codes
ICD-10 has no distinct code for most rare diseases, so many are filed under the nearest available one. A shared code identifies the group, not this disease — the ORPHAcode above is what identifies it.
Related health topics
Reached through the ICD-10 categories this disease is filed under, so these describe the broader group rather than this disease specifically.
Cross-references
Orphadata Science: Free access data from Orphanet. © INSERM 1999. Data version 2026-06-23. Available under CC BY 4.0. This is a reference, not medical advice.
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