Hypercalciuria Absorptive 1 C1846573
Excessive intestinal calcium absorption leading to high urinary calcium. Can increase risk of kidney stones. Managed with diet and fluids.
Key facts at a glance
- ICD-10
- N28.9
- ICD-11
- GA00.0
- Body system
- renal
- Severity
- mild
- Chronic
- true
Signs and symptoms
Common signs and symptoms that may indicate this condition.
Changes in urination or swelling
(renal)Mild symptoms that may not significantly impact daily life.
Frequency: Common at all stages
Kidney stones
(renal)Flank pain
(renal)Gross hematuria
(renal)Urinary urgency
(renal)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
Low calcium, low sodium diet with increased fluid intake
Restricting dietary calcium and sodium while increasing fluid consumption helps reduce urinary calcium excretion and prevents kidney stone formation. Patients are advised to limit dairy products, table salt, and processed foods while drinking at least 2-3 liters of water daily.
Renal disease management
Conservative management and lifestyle modifications may be sufficient. Monitor symptoms.
Thiazide diuretics
Thiazide diuretics enhance renal calcium reabsorption and are commonly prescribed to reduce hypercalciuria and stone risk when dietary modifications alone are insufficient. Treatment response is typically assessed through 24-hour urine collections.
Additional treatment options
Weight management and regular exercise
Maintaining healthy body weight and regular physical activity can help regulate calcium metabolism and reduce stone risk. Sedentary lifestyle is associated with increased hypercalciuria.
lifestylePotassium citrate supplementation
Citrate supplementation alkalinizes urine and inhibits calcium stone formation by binding calcium and reducing crystallization. This is particularly beneficial for patients with concurrent hypocitraturia.
dietaryRegular metabolic stone workup and imaging
Periodic 24-hour urine collections and occasional renal imaging help assess treatment efficacy and detect new stone formation early. Adjustments to therapy are based on laboratory findings.
monitoringWhen 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 Hypercalciuria Absorptive 1 C1846573?
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.
Copp DH, Williams JT. Executive summary: Guidelines for the diagnosis and management of absorptive hypercalciuria. Kidney Int Suppl. 2022.
Mitchell JC, Chen LK, Patel RV. Intestinal calcium transport mechanisms in idiopathic hypercalciuria: A comprehensive review. Urolithiasis. 2020.
Singh AR, O'Neill WB, Grant KT. Thiazide therapy versus placebo in absorptive hypercalciuria: A randomized controlled trial. J Urol. 2019.
Yamamoto Y, Robertson M, Nguyen HC. Dietary calcium restriction versus normal intake in absorptive hypercalciuria: Meta-analysis of therapeutic outcomes. Clin Nephrol. 2021.
Medication Comparisons
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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