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Start free with EleplanImmune hydrops fetalis
ORPHA:364013Clinical subtype
Also called IHF · Immune HF · Immune fetal edema · Immune fetal hydrops
What it is
Immune hydrops fetalis (IHF), a form of HF, describes the excessive accumulation of fetal fluid within the fetal extravascular compartments and body cavities due to maternal rhesus (Rh) incompatibility.
Key facts
- Prevalence
- 1-5 / 10 000 (at birth, United Kingdom)
- Age of onset
- Antenatal, Neonatal
- Inheritance
- Not applicable
- Classified as
- Clinical subtype
Prevalence figures describe populations, not individuals, and are often estimates from a single study. Where the figure is an incidence or a birth prevalence, it says so.
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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