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Start free with EleplanVariably protease-sensitive prionopathy
ORPHA:454742Disease
What it is
A rare human prion disease characterized by accumulation of abnormal prion protein markedly less protease-resistant than in other prion diseases, depending on the genotype at codon 129 of the prion protein gene. No mutations are found in the coding sequence of the gene. Neuropathological analysis shows spongiform change and prion protein deposition with microplaques in the cerebellum. Patients present with slowly progressive cognitive and motor decline, psychiatric symptoms, ataxia, myoclonus, or tremor, among others. The disease is fatal and transmissible to other individuals.
Key facts
- Inheritance
- Not applicable
- Classified as
- Disease
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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