raremaprare-disease reference indexOrphadata 2026-06-23 · HPO 2026-09-01
ORPHA:247582

Citrin deficiency

Type
Category
Group
Group of disorders
Inheritance
Autosomal recessive
Age of onset
All ages
Status
active

A rare autosomal recessive urea cycle defect characterized clinically by recurring episodes of hyperammonemia and associated neuropsychiatric symptoms in the adult-onset form (citrullinemia type II), and by transient cholestasis and variable hepatic dysfunction in the neonatal form (neonatal intrahepatic cholestasis due to citrin deficiency).

1

Names in Orphadata languages

12 of 12 languages
LangNameSynonyms
enCitrin deficiency
frDéficit en citrine
deCitrin-Mangel
esDeficiencia de citrina
itDeficit di citrina
nlCitrinedeficiëntie
ptDeficiência de citrina
plNiedobór cytrynianu
csDeficit citrinu
ukДефіцит цитрину
zh柠檬酸缺乏症
trSitrin eksikliği

Definition in:

2

Cross-references

qualifier = Orphanet mapping relation
SourceCodeQualifierICD relationValidation
MONDO0016602Evalidated
MONDO16602Evalidated
UMLSC1997910Evalidated

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):

Children (2):

4

Genes

0 direct

Orphanet records no gene directly on this code.

5

Prevalence and incidence

1 record
TypeClassValueAreaQualificationValidationSource
Point prevalenceUnknown—WorldwideClass onlyNot yet validatedORPHANET

Value is Orphadata's ValMoy: the mean estimate per 100 000 for prevalence and incidence, the number of cases or families for case reports.

6

HPO phenotypes

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

7

Sources for this card