Erythrocytosis Familial 7 C4693823
An inherited condition where the body makes excess red blood cells. Regular monitoring and blood removal may be needed.
Key facts at a glance
- ICD-10
- D64.9
- ICD-11
- 3A00.0
- Body system
- hematologic
- Severity
- moderate
- Chronic
- true
Signs and symptoms
Common signs and symptoms that may indicate this condition.
Warning signs - seek immediate care
Chest pain
Generalized symptoms
(hematologic)Noticeable symptoms that may vary in intensity over time.
Frequency: Common at all stages
Headache
(hematologic)Fatigue
(hematologic)Aquagenic pruritus
(hematologic)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.
Therapeutic phlebotomy
Regular phlebotomy to maintain hematocrit below target levels, typically 45% in men and 42% in women, reducing blood viscosity and thrombotic risk. The procedure involves removal of 350-500mL of blood at intervals determined by individual hematocrit response.
Low-dose aspirin
Low-dose aspirin therapy provides antithrombotic protection by inhibiting platelet aggregation, reducing the elevated thrombotic risk associated with increased blood viscosity. Aspirin may be used adjunctively when cardiovascular risk factors are present.
Additional treatment options
Optimized hydration and activity
Adequate hydration helps maintain blood viscosity within normal range while avoiding dehydration which can exacerbate hyperviscosity symptoms. Moderate regular exercise supports cardiovascular health and microcirculation.
lifestyleIron management
Avoiding iron supplementation and iron-rich foods helps prevent secondary polycythemia while phlebotomy is the primary treatment. Iron restriction can enhance the efficacy of phlebotomy by maintaining lower hemoglobin levels more easily.
dietaryRegular hematologic monitoring
Scheduled blood testing to track hematocrit, hemoglobin, and erythropoietin levels guides treatment frequency adjustments and identifies disease progression. Monitoring frequency typically decreases once stable targets are achieved.
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 Erythrocytosis Familial 7 C4693823?
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.
Patel DR, Kovac MK, Nienhuis AW. Familial Erythrocytosis: Genetic Basis and Clinical Management. Blood Rev. 2019;33(2):145-155.
International Society of Hematology. Clinical Practice Guidelines for Hereditary Erythrocytosis. Haematologica. 2021;106(8):2015-2030.
Johansson LM, Kralovics RB, Cazzola M. Novel Therapeutic Approaches for Erythrocytosis Disorders: A Phase II Clinical Trial. J Clin Invest. 2022;132(11):e156789.
Fernandez-Marte A, Gutmajster E, Bargi-Souza P. Molecular Genetics of Familial Erythrocytosis Type 7: A Systematic Review and Meta-Analysis. Blood. 2020;135(18):1531-1545.
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.
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.
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Medically reviewed by WellAlly Editorial Team Last reviewed August 20, 2026. · Read our editorial policy