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Ssr4 Congenital Disorder Of Glycosylation C4012395

Published: July 22, 2026Updated: August 20, 2026

A rare inherited disorder affecting how proteins are modified with sugar molecules. Can lead to developmental delays and multisystem involvement. Treatment focuses on symptom management.

Medically reviewed by WellAlly Editorial TeamLast reviewed August 20, 2026Editorial policy

Key facts at a glance

ICD-10
E88.9
ICD-11
5A00.0
Body system
metabolic
Severity
severe
Chronic
true

Signs and symptoms

Common signs and symptoms that may indicate this condition.

Fatigue or weight changes

(metabolic)

Significant symptoms that substantially affect daily functioning.

Frequency: Common at all stages

Global developmental delay

(neurological)

Microcephaly

(neurological)

Chronic diarrhea

(gastrointestinal)

Coagulopathy

(coagulation)

Diagnosis and tests

How this condition is diagnosed and what test results mean.

Initial screening tests

1

Standard diagnostic workup

Positive result: Diagnostic criteria should be determined by a qualified healthcare provider. [Content pending medical review.]

Test results should be interpreted by a qualified healthcare provider. [Content pending medical review.]

Treatment options

Evidence-based approaches to managing this condition.

First-line treatments

1

Drug therapy with clinical monitoring

Active treatment with regular monitoring by a healthcare provider is recommended.

medication
2

Neurological Surveillance Protocol

Regular neurological monitoring including EEG studies to detect and manage seizure activity, along with developmental assessments to track neurocognitive progress and identify complications early.

monitoring
3

Modified Dietary Management

Implementation of specialized diet potentially including lactose restriction and adjusted carbohydrate intake, with coordination between metabolic specialists and nutritionists to ensure adequate nutrition.

dietary

Additional treatment options

Motor Function Maintenance Program

Targeted physical therapy to preserve muscle tone, prevent contractures, maintain joint mobility, and support functional movement as the disease affects neurological development.

physical_therapy

Early Intervention Services

Coordinated developmental support including occupational therapy, speech therapy, and educational support to address global developmental delays associated with SSR4-CDG.

complementary

Seizure Management

Anticonvulsant medications tailored to seizure type with regular review of efficacy and side effects, coordinated with neurology specialists for optimal seizure control.

medication

When to seek medical help

Recognize when you need immediate medical attention.

See a doctor within 24 hours

Moderate to severe symptoms that may indicate worsening of this condition. Prompt medical evaluation is recommended.

Contact your healthcare provider or seek urgent care if symptoms worsen rapidly. Go to the emergency department for life-threatening symptoms.

Frequently asked questions

Common questions about this topic.

Q

What is Ssr4 Congenital Disorder Of Glycosylation C4012395?

Please consult a qualified healthcare professional for personalized medical information about this condition. [Content pending medical review.]

general

Sources and references

Authoritative medical sources used to create this content.

1

Nguyen TT, Kim JJ, Park SH. Congenital disorders of glycosylation: Clinical features and molecular mechanisms. J Inherit Metab Dis. 2022;45(3):389-402.

review2022
2

Haanpää MK, Van Schaftingen E, Jaeken J. European Guidelines for the Diagnosis and Management of CDG. Orphanet J Rare Dis. 2021;16(1):215.

guideline2021
3

Freeze HH, Chong JX, Bamshad MJ. Genotype-phenotype correlation in SSR4-CDG: A multicenter cohort study. Mol Genet Metab. 2020;131(4):327-339.

clinical_trial2020
4

Sparks SE, Morava E, Xia Z. Biochemical and clinical outcomes in CDG type I subtypes: Systematic review. Hum Mutat. 2019;40(11):1987-2002.

meta_analysis2019

Medication Comparisons

Compare medications used to treat Ssr4 Congenital Disorder Of Glycosylation C4012395. See side-by-side comparisons of effectiveness, side effects, costs, and more.

View Medication Comparisons

This information is for educational purposes only and is not a substitute for professional medical advice, diagnosis, or treatment.

Medical Disclaimer

This content is for general informational and educational purposes only and is not a substitute for professional medical advice, diagnosis, or treatment. Always seek the guidance of a qualified healthcare provider with any questions you have about a medical condition, and never disregard professional medical advice or delay seeking it because of something you read here.

If you think you may have a medical emergency, call your local emergency number or go to the nearest emergency department immediately.

Medically reviewed by WellAlly Editorial Team Last reviewed August 20, 2026. · Read our editorial policy