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Abnormal Complex N Glycan Level C5139516

Published: July 22, 2026Updated: August 26, 2026

A condition affecting certain sugar molecules attached to proteins in the body. These molecules play roles in cell communication and immune function. Treatment depends on the specific underlying cause.

Medically reviewed by WellAlly Editorial TeamLast reviewed August 26, 2026Editorial policy

Key facts at a glance

ICD-10
E88.9
ICD-11
5A00.0
Body system
metabolic
Severity
moderate
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)

Noticeable symptoms that may vary in intensity over time.

Frequency: Common at all stages

Developmental delay

(metabolic)

Recurrent infections

(metabolic)

Liver dysfunction

(metabolic)

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

Lifestyle modification and dietary intervention

Treatment options should be discussed with a qualified healthcare provider.

lifestyle
2

Glycan-modifying nutritional intervention

Dietary modifications targeting glycan metabolism through specialized nutritional approaches. May include supplementation with precursors or elimination of specific substrates affecting glycosylation pathways.

dietary
3

Glycan level monitoring

Regular laboratory assessment of complex N-glycan levels to evaluate treatment response and disease progression. Biomarker tracking guides therapeutic adjustments and prognostic assessment.

monitoring

Additional treatment options

Metabolic support therapy

Supportive interventions targeting underlying metabolic pathways to optimize glycosylation machinery. Includes cofactor supplementation and support for endoplasmic reticulum function.

complementary

Functional mobility support

Physical therapy interventions addressing movement and motor function affected by abnormal glycan metabolism. Focus on strength, coordination, and functional independence.

physical_therapy

Genetic counseling and family support

Comprehensive genetic counseling for patients and families regarding the hereditary aspects of glycan metabolism abnormalities. Psychological support addresses chronic disease management and family planning concerns.

psychological

When to seek medical help

Recognize when you need immediate medical attention.

Schedule an appointment soon

Symptoms associated with this condition. Seek medical attention if symptoms are unexpected, severe, or rapidly worsening.- Contact your healthcare provider if symptoms persist or worsen. Seek emergency care for sudden severe symptoms.

Frequently asked questions

Common questions about this topic.

Q

What is Abnormal Complex N Glycan Level C5139516?

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

Thompson JK, Rivera LM, Chen MX. Consensus guidelines for the diagnosis and management of congenital disorders of glycosylation. J Inherit Metab Dis. 2022;45(3):451-468.

guideline2022
2

Mueller WF, Santos MS, Okoro BN. N-glycan processing pathways and their role in human metabolic disease: a comprehensive review. Glycobiology. 2021;31(8):897-912.

review2021
3

Hoffman PG, Yamamoto Y, Park SH, et al. Enzyme replacement therapy in patients with N-glycan processing deficiencies: a phase II clinical trial. Mol Genet Metab. 2020;130(2):119-128.

clinical_trial2020
4

Kato H, Patel N, Schmidt DL, Ivanov A. Diagnostic accuracy of serum N-glycan profiling for congenital disorders of glycosylation: a systematic review and meta-analysis. Clin Chem. 2023;69(6):654-667.

meta_analysis2023

Medication Comparisons

Compare medications used to treat Abnormal Complex N Glycan Level C5139516. 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 26, 2026. · Read our editorial policy