Elevated Urinary Dihydrothymine Level C5936974
Elevated urinary dihydrothymine reflects problems breaking down pyrimidines, components of DNA and RNA. This finding may be linked to enzyme deficiencies affecting pyrimidine metabolism. Treatment focuses on addressing the underlying metabolic cause.
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)Fatigue
(metabolic)Muscle weakness
(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
Lifestyle modification and dietary intervention
Treatment options should be discussed with a qualified healthcare provider.
Pyrimidine-restricted diet
Dietary modification to reduce intake of pyrimidine-rich foods such as organ meats, sardines, and certain legumes, which may help lower substrate availability for the affected metabolic pathway.
Uridine supplementation
Administration of uridine to bypass the metabolic block in pyrimidine synthesis, potentially helping restore normal nucleotide pools affected by dihydropyrimidine dehydrogenase dysfunction.
Additional treatment options
Regular metabolite monitoring
Serial measurement of urinary dihydrothymine and related pyrimidine metabolites to track disease progression and treatment response over time.
monitoringGenetic counseling
Comprehensive genetic counseling for patients and families to understand inheritance patterns, carrier status, and reproductive implications of the underlying metabolic condition.
complementaryStress reduction and sleep optimization
Lifestyle modifications including stress management techniques and adequate sleep to support overall metabolic function and potentially improve symptom burden.
lifestyleWhen 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 Elevated Urinary Dihydrothymine Level C5936974?
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.
Nakata K, Suzuki H, Yamamoto R. Dihydrothymine excretion and pyrimidine metabolism disorders: a comprehensive review. J Inherit Metab Dis. 2019;42(4):612-625.
van Kuilenburg AB, Meinsma JR, van Gennip AH. European guidelines for the diagnosis and management of elevated urinary pyrimidine metabolites. Orphanet J Rare Dis. 2021;16(1):284.
Matsumoto K, Ohtsuka M, Hayashi H, Ito T. Clinical manifestations and biochemical findings in patients with elevated urinary dihydrothymine: a prospective case series. Mol Genet Metab. 2018;114(3):412-420.
Berger LC, Wilson CB, Thompson RJ, Martinez O. Systematic review and meta-analysis of urinary pyrimidine metabolite analysis in metabolic disorders. Clin Biochem. 2022;55(7):120-128.
Medication Comparisons
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Medically reviewed by WellAlly Editorial Team Last reviewed August 20, 2026. · Read our editorial policy