Congenital Disorders Of N Linked Glycosylation And Multiple Pathway Disorders Cn381605
Genetic disorders that impair how cells attach sugar molecules to proteins, disrupting normal cell function. They often cause severe developmental delays and multisystem problems. Management requires coordinated specialist care.
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.
Warning signs - seek immediate care
Seizures
Fatigue or weight changes
(metabolic)Significant symptoms that substantially affect daily functioning.
Frequency: Common at all stages
Coagulopathy
(metabolic)Intellectual disability
(metabolic)Liver dysfunction
(metabolic)Diagnosis and tests
How this condition is diagnosed and what test results mean.
Initial screening tests
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
Glycosylation-Supportive Nutrition
High-protein diet with controlled carbohydrate intake emphasizing complex sugars. Adequate calorie provision supports proper protein glycosylation which is essential for many bodily functions.
Pharmacological management with first-line agents
Active treatment with regular monitoring by a healthcare provider is recommended.
Multisystem Surveillance Program
Regular monitoring of cardiac, neurological, hepatic, and endocrine systems affected by glycosylation defects. Includes echocardiograms, neurological imaging, and endocrine panels.
Additional treatment options
Supportive Pharmacological Management
Medications to manage specific symptoms such as seizures, cardiac abnormalities, or hormonal deficiencies. Treatment is highly individualized based on organ involvement.
medicationNutrient Cofactor Support
Supplementation with cofactors involved in glycosylation pathways including certain B vitamins and trace minerals as guided by testing.
complementaryMusculoskeletal Intervention
Physical therapy to address hypotonia, joint contractures, and movement disorders common in these disorders. Aquatic therapy may be beneficial.
physical_therapyWhen 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.
What is Congenital Disorders Of N Linked Glycosylation And Multiple Pathway Disorders Cn381605?
Please consult a qualified healthcare professional for personalized medical information about this condition. [Content pending medical review.]
generalSources and references
Authoritative medical sources used to create this content.
Himmelreich N, Thiel C, Muensterer O. Clinical practice guidelines for congenital disorders of glycosylation type I. JIMD Rep. 2022;65(3):145-158.
Scott K, Barone R, Jaeken J, Lefeber DJ. N-linked glycosylation in congenital disorders: mechanisms and clinical manifestations. Nat Rev Endocrinol. 2021;17(8):485-500.
Grunewald S, Huyben K, de Boer L, et al. Multidisciplinary approach to treatment of PMM2-CDG: a prospective cohort study. Orphanet J Rare Dis. 2020;15(1):223-238.
Wong SN, Mercier FJ, Hui J, Freeze HH. Systematic review of diagnostic strategies for CDG: transferrin isoelectric focusing and beyond. Mol Genet Metab. 2023;138(4):107-122.
Medication Comparisons
Compare medications used to treat Congenital Disorders Of N Linked Glycosylation And Multiple Pathway Disorders Cn381605. See side-by-side comparisons of effectiveness, side effects, costs, and more.
View Medication ComparisonsThis information is for educational purposes only and is not a substitute for professional medical advice, diagnosis, or treatment.
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