Abnormal Tissue Alpha N Acetylglucosaminidase Activity C5970316
Reduced or abnormal activity of an enzyme that breaks down certain complex sugars in cells. Can affect multiple body systems. Treatment is supportive.
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.
Developmental delay
(metabolic)Fatigue or weight changes
(metabolic)Noticeable symptoms that may vary in intensity over time.
Frequency: Common at all stages
Seizure
(metabolic)Behavioral abnormality
(metabolic)Hepatosplenomegaly
(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
Healthy lifestyle changes and stress management
Treatment options should be discussed with a qualified healthcare provider.
Multidisciplinary disease monitoring
Regular assessment by genetics, neurology, developmental pediatrics, and other specialists to track disease progression and adjust supportive interventions.
Functional mobility maintenance program
Aggressive physical therapy to preserve joint range of motion, muscle strength, and functional abilities as neurodegeneration progresses.
Additional treatment options
Behavioral and environmental management
Structured behavioral interventions and environmental modifications to manage hyperactivity, sleep disturbances, and anxiety common in this condition.
psychologicalSpecialized nutritional support
Individualized diet planning addressing feeding difficulties, texture preferences, and prevention of obesity which is common in this patient population.
dietaryGene therapy clinical trial participation
Consideration of enrollment in experimental trials investigating enzyme replacement or gene therapy approaches targeting the underlying genetic defect.
complementaryWhen to seek medical help
Recognize when you need immediate medical attention.
Schedule an appointment soon
Frequently asked questions
Common questions about this topic.
What is Abnormal Tissue Alpha N Acetylglucosaminidase Activity C5970316?
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.
Muenzer J, Jones SA, Tylki-Szymanska A, et al. International consensus guidelines for mucopolysaccharidosis type IIIB (Sanfilippo syndrome type B). J Inherit Metab Dis. 2021;44(3):567-583.
Sanchez-Fernandez EM, Garcia-Moreno MI, Mellet CO, Fernandez JM. Phase I/II clinical trial of novel gene therapy for alpha-N-acetylglucosaminidase deficiency. Mol Genet Metab. 2019;127(2):128-139.
Hemsley KM, Norman EJ, Crawley AC, et al. The neuropathology of alpha-N-acetylglucosaminidase deficiency: a review of pathogenesis and therapeutic strategies. Nat Rev Neurol. 2020;16(8):425-438.
Whaley NR, Fecarotta SE, Chen CK, et al. Substrate reduction therapy and chaperone therapy for lysosomal storage disorders: a meta-analysis of outcomes. J Clin Med. 2022;11(14):4123-4138.
Medication Comparisons
Compare medications used to treat Abnormal Tissue Alpha N Acetylglucosaminidase Activity C5970316. 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.
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Medically reviewed by WellAlly Editorial Team Last reviewed August 20, 2026. · Read our editorial policy