intellectual disability, autosomal recessive 18
Findings
No curated finding names intellectual disability, autosomal recessive 18 yet. Everything below is reference data from Mondo, HPO and GenCC, not evidence about what affects it.
Definition
Any autosomal recessive non-syndromic intellectual disability in which the cause of the disease is a mutation in the MED23 gene.
Definition from the Mondo Disease Ontology (MONDO:0013651), read 2026-09-29. CC BY 4.0.
- Inheritance
- Autosomal recessive inheritance
- Onset and course
- Congenital onset · Infantile onset · Childhood onset
HPO, annotations 2026-09-02
Features
22 features
What the disease is reported to present with, and how often among people who have it — never how often a feature means the disease. HPO, annotations 2026-09-02.
- Absent speechHPOHP:0001344
- 2 of 2 reported patients
- Axial hypotoniaHPOHP:0008936
- 2 of 2 reported patients
- Delayed speech and language developmentHPOHP:0000750
- 1 of 1 reported patient
- EEG abnormalityHPOHP:0002353
- 2 of 2 reported patients
- Expressive language delayHPOHP:0002474
- 2 of 2 reported patients
- Feeding difficultiesHPOHP:0011968
- 2 of 2 reported patients · Infantile onset
- Gait disturbanceHPO
Show the remaining 10
- Profound intellectual disabilityHPOHP:0002187
- 3 of 3 reported patients
- Sleep disturbanceHPOHP:0002360
- 2 of 2 reported patients · Infantile onset
- SpasticityHPOHP:0001257
- 3 of 3 reported patients
- Atrial septal defectHPOHP:0001631
- 1 of 2 reported patients · Congenital onset
- ChoreoathetosisHPOHP:0001266
- 1 of 2 reported patients
- DystoniaHPOHP:0001332
- 1 of 2 reported patients
Genes
1 gene
Germline variants in the gene encoding each protein, as classified by GenCC submitters, each in their own words. Limited, disputed and refuted submissions are listed too.
- MED23HGNC:2372
- Strong · Labcorp Genetics (formerly Invitae) · Autosomal recessive · 2018
- Strong · PanelApp Australia · Autosomal recessive · 2025
- Moderate · Ambry Genetics · Autosomal recessive · 2020
- Limited · G2P · Autosomal recessive · 2015
Where it sits
Other names
5 names
Resolves to: intellectual disability, autosomal recessive 18
- Also called
- autosomal recessive non-syndromic intellectual disability caused by mutation in MED23intellectual developmental disorder, autosomal recessive 18, with or without epilepsyintellectual disability, autosomal recessive type 18MED23 autosomal recessive non-syndromic intellectual disabilitymental retardation, autosomal recessive type 18