raremaprare-disease reference indexOrphadata 2026-06-23 · HPO 2026-09-01
ORPHA:2157

Histidinemia

Synonyms: HAL deficiency · HIS deficiency · Histidase deficiency · Histidine ammonia-lyase deficiency · Histidinuria · Hyperhistidinemia

Type
Disease
Group
Disorder
Inheritance
Autosomal recessive
Age of onset
Infancy, Neonatal
Status
active

Histidinemia is a rare metabolic disorder characterized by elevated histidine levels in blood, urine, and cerebrospinal fluid, generally with no clinical repercussions.

1

Names in Orphadata languages

12 of 12 languages
LangNameSynonyms
enHistidinemiaHAL deficiency · HIS deficiency · Histidase deficiency · Histidine ammonia-lyase deficiency · Histidinuria · Hyperhistidinemia
frHistidinémieDéficit en HAL · Déficit en HIS · Déficit en histidase · Déficit en histidine-ammoniac-lyase · Histidinurie · Hyperhistidinémie
deHistidinämieHAL-Mangel · HIS-Mangel · Histidase-Mangel · Histidin-Ammoniak-Lyase-Mangel · Histidinurie · Hyperhistidinämie
esHistidinemiaDeficiencia HAL · Deficiencia HIS · Deficiencia de histidasa · Deficiencia de histidina-amoníaco-liasa · Hiperhistidinemia · Histidinuria
itIstidinemiaDeficit di HAL · Deficit di HIS · Deficit di istidasi · Deficit di istidina ammonio-liasi · Iperistidinemia · Istidinuria
nlHistidinemieDeficiëntie van histidase · Deficiëntie van histidine-ammoniak-lyase · HAL-deficiëntie · HIS-deficiëntie · Histidinurie · Hyperhistidinemie
ptHistidinemiaDeficiência de HAL · Deficiência de HIS · Deficiência de histidase · Deficiência de histidina amonia-liase · Hiperhistidinemia · Histidinúria
plHistydynemiaHiperhistydynemia · Histydynuria · Niedobór amoniakoliazy histydyny · Niedobór HAL · Niedobór HIS · Niedobór histydazy
csHistidinémieHAL deficit · HIS deficit · Deficit histidázy · Deficit histidin amonium lyázy · Histidinurie · Hyperhistidinemie
ukГістидинеміяДефіцит HAL · Дефіцит HIS · Дефіцит гістидази · Дефіцит гістидин-аміакліази · Гістидинурія · Гіпергістидинемія
zh组氨酸血症组氨酸氨基裂合酶缺乏
trHistidinemiaHistidinüri · HAL eksikliği · HIS eksikliği · Hiperhistidinemi · Histidaz eksikliği · Histidin amonyak liyaz eksikliği

Definition in:

2

Cross-references

qualifier = Orphanet mapping relation
SourceCodeQualifierICD relationValidation
OMIM235800Evalidated
ICD-10E70.8NTBTattributedvalidated
ICD-115C50.20Especificvalidated
MONDO0009345Evalidated
MeSHC538320Evalidated
UMLSC0220992Evalidated
GARD6661Evalidated

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
HALDisease-causing germline mutation(s) inAssessedHGNC:4806ENSG0000008411060945712q23.1histidine ammonia-lyase15806399[PMID]
5

Prevalence and incidence

4 records
TypeClassValueAreaQualificationValidationSource
Prevalence at birth1-9 / 100 0002.7 / 100 000SwedenValue and classValidated8463510[PMID]
Point prevalence1-9 / 100 000—EuropeClass onlyValidatedORPHANET
Prevalence at birth1-9 / 100 0008.3 / 100 000United StatesValue and classValidated[EXPERT]
Prevalence at birth1-5 / 10 00011.9 / 100 000JapanValue and classValidated6468444[PMID]

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

7 annotations · validated 2019-02-13
HPOTerm (as annotated by Orphanet)Diagnostic
Obligate (100%)
HP:0002927Histidinuria
HP:0010906Hyperhistidinemia
Very rare (<4-1%)
HP:0002167Abnormality of speech or vocalization
HP:0000708Atypical behavior
HP:0000752Hyperactivity
HP:0011343Moderate global developmental delay
HP:0001328Specific learning disability

Run the differential on the 2 obligate / very frequent terms

Annotation source: 28262611[PMID]_8669938[PMID]

7

Sources for this card