D56.0
Alpha thalassemia
Clinical Classification Guidelines
Use Additional Code
- code, if applicable, for hydrops fetalis due to alpha thalassemia (P56.99)
Inclusion Terms
- Alpha thalassemia major
- Hemoglobin H Constant Spring
- Hemoglobin H disease
- Hydrops fetalis due to alpha thalassemia
- Severe alpha thalassemia
- Triple gene defect alpha thalassemia
Excludes Type 1
- alpha thalassemia trait or minor (D56.3)
- asymptomatic alpha thalassemia (D56.3)
- hydrops fetalis due to isoimmunization (P56.0)
- hydrops fetalis not due to immune hemolysis (P83.2)
Medical Intelligence & Overview
Alpha thalassemia is a hereditary blood disorder characterized by reduced or absent production of alpha globin chains, components of hemoglobin. This condition varies in severity, from mild anemia to severe forms that can be life-threatening. It is classified under ICD-10 code D56.0 and includes several subtypes such as hemoglobin H disease, hemoglobin H constant Spring, and hydrops fetalis due to alpha thalassemia. Understanding the different forms of alpha thalassemia can help in early diagnosis and management.
Causes & Symptoms
Clinical Causes: Inherited gene mutations affecting the alpha globin genes Gene deletions that reduce alpha globin chain production Presence of multiple gene deletions leading to severe forms like alpha thalassemia major
Key Symptoms: Mild to moderate anemia, including fatigue and weakness Pale or jaundiced skin Enlarged spleen (splenomegaly) Facial bone abnormalities in some cases In severe cases, signs of hydrops fetalis such as widespread edema in newborns Delayed growth and development in children Dark urine due to hemolysis
Diagnostic & Treatment
Diagnosis Path: Diagnosis typically involves blood tests such as complete blood count (CBC) and hemoglobin electrophoresis. Genetic testing confirms the presence of deletions or mutations in alpha globin genes. Ultrasound and fetal blood sampling may be used during pregnancy to detect severe forms like hydrops fetalis. Early detection is crucial for planning appropriate management strategies.
Treatment Protocols: Treatment options vary depending on the severity of the condition. Mild cases may require regular monitoring, while more severe forms could involve blood transfusions, iron chelation therapy, or bone marrow transplantation. Supportive care, genetic counseling, and prenatal diagnosis are important aspects of managing alpha thalassemia. Advances in gene therapy are currently being explored as potential future treatments.
Clinical Advice & FAQs
Billing Guidance
Is D56.0 a billable ICD-10 code?
Yes, D56.0 is a specific, billable code that can be used to indicate a diagnosis for reimbursement purposes.
Documentation
How do I report D56.0?
Clinical documentation must specify the nature of Alpha thalassemia and any associated comorbidities for accurate reporting.
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