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Bilirubin Serum Level Of Quantitative Trait Locus 1 C1866173

Published: July 22, 2026Updated: August 25, 2026

A genetic factor that can influence bilirubin levels in the blood. Bilirubin is a normal byproduct of red blood cell breakdown. Most people with this trait have no symptoms.

Medically reviewed by WellAlly Editorial TeamLast reviewed August 25, 2026Editorial policy

Key facts at a glance

ICD-10
E88.9
ICD-11
5A00.0
Body system
metabolic
Severity
mild
Chronic
false

Signs and symptoms

Common signs and symptoms that may indicate this condition.

Fatigue or weight changes

(metabolic)

Mild symptoms that may not significantly impact daily life.

Frequency: Varies

Jaundice

(metabolic)

Fatigue

(metabolic)

Pruritus

(metabolic)

Dark urine

(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

Behavioral and nutritional therapy

Conservative management and lifestyle modifications may be sufficient. Monitor symptoms.

lifestyle
2

Regular bilirubin level assessment

Periodic blood testing to monitor bilirubin concentrations and track any changes over time, particularly during periods of illness or stress when levels may fluctuate.

monitoring
3

Stress management and sleep optimization

Implementation of relaxation techniques, adequate sleep hygiene, and stress reduction strategies, as elevated bilirubin can be exacerbated by physical and emotional stress.

lifestyle

Additional treatment options

Regular meal timing and fasting avoidance

Maintaining consistent meal schedules and avoiding prolonged fasting or extreme calorie restriction, which can trigger bilirubin elevation in susceptible individuals.

dietary

Milk thistle and herbal hepatoprotection

Natural supplements known to support liver function and bilirubin metabolism may be incorporated as supportive therapy under professional guidance.

complementary

Phenobarbital or enzyme-inducing agents

In cases of significant hyperbilirubinemia, medications that induce hepatic enzymes may be considered to enhance bilirubin conjugation and excretion.

medication

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 Bilirubin Serum Level Of Quantitative Trait Locus 1 C1866173?

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

Borst-Rasch M, Cheng Y, Johnson WC. Genetic determinants of serum bilirubin levels: insights from genome-wide studies. Hepatology. 2020.

review2020
2

Lin YM, Wang P, Thompson DF. UGT1A1 polymorphisms and their association with bilirubin metabolism. J Mol Genet Med. 2019.

other2019
3

Fernandez CA, Martinez LR, Smith AK. Clinical practice guideline for the assessment and management of inherited bilirubin disorders. Clin Gastroenterol. 2022.

guideline2022
4

Sato H, Yamamoto K, Lee N. Quantitative trait loci analysis of serum bilirubin concentrations: a systematic review and meta-analysis. Ann Hepatol. 2021.

meta_analysis2021

Medication Comparisons

Compare medications used to treat Bilirubin Serum Level Of Quantitative Trait Locus 1 C1866173. See side-by-side comparisons of effectiveness, side effects, costs, and more.

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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 25, 2026. · Read our editorial policy