raremaprare-disease reference indexOrphadata 2026-06-23 · HPO 2026-09-01
ORPHA:247573

Late-onset citrullinemia type I

Synonyms: Late-onset citrullinemia type 1

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

A form of citrullinemia type I characterized clinically by adult onset of symptoms including variable hyperammonemia and less striking neurological findings which may include intense headache, scotomas, migraine-like episodes, ataxia, slurred speech, lethargy and drowsiness. Serious increased intracranial pressure may occur.

1

Names in Orphadata languages

12 of 12 languages
LangNameSynonyms
enLate-onset citrullinemia type ILate-onset citrullinemia type 1
frCitrullinémie type I tardiveCitrullinémie type 1 tardive
deZitrullinämie Typ I, spät-beginnendeCitrullinämie Typ 1, spät-beginnende · Citrullinämie, adulte, Typ I · Zitrullinämie Typ 1, spät-beginnende
esCitrulinemia del adulto tipo ICitrulinemia del adulto tipo 1 · Citrulinemia tipo 1 de inicio tardío · Citrulinemia tipo I de inicio tardío
itCitrullinemia a esordio tardivo tipo ICitrullinemia a esordio nell'età adulta, tipo 1 · Citrullinemia a esordio tardivo tipo 1 · Citrullinemia a esordio tardivo, tipo 1 · Citrullinemia a esordio tardivo, tipo I
nlLaat optredende citrullinemie type ILaat optredende citrullinemie type 1
ptLate-onset citrullinemia type ICitrulinémia tipo 1 de início tardio
plCitrulinemia typu I o poczatku w wieku dorosłymCitrulinemia typu 1 o poczatku w wieku dorosłym · Citrulinemia typu 1 o późnym początku · Citrulinemia typu I o późnym poczatku
csCitrulinémie s nástupem v dospělosti, typ ICitrulinémie s pozdním nástupem, typ 1 · Citrulinémie s pozdním nástupem, typ I · Citrulinémie s nástupem v dospělosti, typ 1
ukПізня цитрулінемія I типу з пізнім початкомПізня цитрулінемія типу 1
zh成人起病瓜氨酸血症I型成人起病瓜氨酸血症1型
trYetişkin başlangıçlı sitrülinemi tip IGeç-başlangıçlı sitrülinemi tip 1 · Geç-başlangıçlı sitrülinemi tip I · Erişkin-başlangıçlı sitrülinemi tip 1

Definition in:

2

Cross-references

qualifier = Orphanet mapping relation
SourceCodeQualifierICD relationValidation
OMIM215700NTBTvalidated
ICD-10E72.2NTBTattributedvalidated
MONDO0016601Evalidated
UMLSC0268546Evalidated

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
ASS1Disease-causing germline mutation(s) (loss of function) inAssessedHGNC:758ENSG000001307076034709q34.11argininosuccinate synthase 120301631[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