raremaprare-disease reference indexOrphadata 2026-06-23 · HPO 2026-09-01
ORPHA:700333

Hypotonia-speech impairment-severe cognitive delay syndrome due to UNC80 deficiency

Type
Clinical subtype
Group
Subtype of disorder
Inheritance
Autosomal recessive
Status
active

Orphadata ships no English definition for this code.

1

Names in Orphadata languages

9 of 12 languages
LangNameSynonyms
enHypotonia-speech impairment-severe cognitive delay syndrome due to UNC80 deficiency
frSyndrome d'hypotonie-troubles du langage sévères-retard cognitif sévère par déficit en UNC80
deHypotonie-Sprachstörung-schwere kognitive Entwicklungsverzögerung-Syndrom, UNC80-assoziiertIHPRF2 · Infantile Hypotonie mit psychomotorischer Entwicklungsverzögerung und charakteristischem Gesichtsausdruck 2
esSíndrome de hipotonía-trastorno del habla-retraso cognitivo grave por deficiencia de UNC80
itSindrome ipotonia-deficit del linguaggio-grave ritardo cognitivo da deficit di UNC80
nlHypotonie - spraakstoornis - ernstige cognitieve achterstand-syndroom door UNC80-deficiëntie
ptHypotonia-speech impairment-severe cognitive delay syndrome due to UNC80 deficiency
plHypotonia-speech impairment-severe cognitive delay syndrome due to UNC80 deficiency
csHypotonia-speech impairment-severe cognitive delay syndrome due to UNC80 deficiency
2

Cross-references

qualifier = Orphanet mapping relation
SourceCodeQualifierICD relationValidation
OMIM616801Evalidated
ICD-10Q87.8NTBTattributednot yet validated
ICD-11LD90.YNTBTattributednot yet validated

E exact · NTBT this ORPHAcode is narrower than the target · BTNT broader than the target · ND not decided.

3

Classification

Preferential parent (Orphanet linearisation):

Parents in the classifications (1):

No children.

4

Genes

1 direct
GeneAssociationStatusHGNCEnsemblOMIMLocusNameSource of validation
UNC80Disease-causing germline mutation(s) (loss of function) inAssessedHGNC:26582ENSG000001444066126362q34unc-80 subunit of NALCN channel complex26708751[PMID]_26708753[PMID]_26545877[PMID]
5

Prevalence and incidence

0 records

No prevalence record in this release.

6

HPO phenotypes

Orphanet has no HPO annotation for this code in this release.

7

Sources for this card