raremaprare-disease reference indexOrphadata 2026-06-23 · HPO 2026-09-01
ORPHA:329195

Developmental delay with autism spectrum disorder and gait instability

Synonyms: Developmental delay with ASD and gait instability

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

Developmental delay with autism spectrum disorder and gait instability is a rare, genetic, neurological disorder characterized by infant hypotonia and feeding difficulties, global development delay, mild to moderated intellectual disability, delayed independent ambulation, broad-based gait with arms upheld and flexed at the elbow with brisk walking or running, and limited language skills. Behavior patterns are highly variable and range from sociable and affectionate to autistic behavior.

1

Names in Orphadata languages

12 of 12 languages
LangNameSynonyms
enDevelopmental delay with autism spectrum disorder and gait instabilityDevelopmental delay with ASD and gait instability
frRetard de développement avec trouble du spectre de l'autisme et démarche instable
deEntwicklungsverzögerung mit Autismus-Spektrum-Störung und Gang-Instabilität
esRetraso del desarrollo con trastorno del espectro autista e inestabilidad en la marchaRetraso del desarrollo con TEA e inestabilidad en la marcha
itRitardo dello sviluppo con disturbo dello spettro autistico e andatura instabileRitardo dello sviluppo con ASD e andatura instabile
nlOntwikkelingsachterstand met autismespectrumstoornis en ganginstabiliteitOntwikkelingsachterstand met ASS en ganginstabiliteit
ptPerturbação do desenvolvimento com perturbação do espectro autista e instabilidade da marcha
plOpóźnienie rozwoju z zaburzeniem ze spektrum autyzmu i niestabilnością choduOpóźnienie rozwoju z ASD i niestabilnością chodu
csOpoždění vývoje s poruchou autistického spektra a nestabilní chůzíOpoždění vývoje s ASD a nestabilní chůzí
ukЗатримка розвитку з розладом аутистичного спектру та нестійкістю ходиЗатримка розвитку при РАС та нестабільність ходи
zh发育迟缓伴自闭症谱系障碍和步态不稳定发育迟缓伴ASD和步态不稳
trOtizm spektrum bozukluğu ve yürüme istikrarsızlığı ile seyreden gelişme geriliğiASD ve yürüme dengesizliği ile seyreden gelişme geriliği

Definition in:

2

Cross-references

qualifier = Orphanet mapping relation
SourceCodeQualifierICD relationValidation
OMIM615516Evalidated
ICD-10F84.8NTBTattributednot yet validated
MONDO0014224Evalidated
UMLSC4749505Evalidated

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
HERC2Disease-causing germline mutation(s) (loss of function) inAssessedHGNC:4868ENSG0000012873160583715q13.1HECT and RLD domain containing E3 ubiquitin protein ligase 223065719[PMID]_23243086[PMID]
5

Prevalence and incidence

2 records
TypeClassValueAreaQualificationValidationSource
Cases/families22 casesWorldwideCase(s)Validated23065719[PMID]_23243086[PMID]
Point prevalence<1 / 1 000 000—WorldwideClass onlyValidatedORPHANET

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.

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Sources for this card