1. Home
2. ICD-10 Codes
3. Chapter - D50-D89
4. Section - D55-D59
5. Category - D56
6. D56.0

D56.0 - Alpha thalassemia

• Applicable to Alpha thalassemia
• The 2025 edition of ICD10-CM D56.0 became effective on October 1, 2024.
• This is the American ICD10-CM version of D56.0 - other international versions of ICD10 D56.0 may differ.
• D56.0 is a Billable / Specific ICD10-CM code that can be used to indicate a diagnosis for reimbursement purposes.

Code Additional Code:

• code, if applicable, for hydrops fetalis due to alpha thalassemia (P56.99)

• Alpha thalassemia major
• Hemoglobin H Constant Spring
• Hemoglobin H disease
• Hydrops fetalis due to alpha thalassemia
• Severe alpha thalassemia
• Triple gene defect alpha thalassemia

Type 1 Excludes

• 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)

The following codes above D56.0 contain annotation back-references that may be applicable to D56.0:

• Chapter: D50-D89 - Diseases of the blood and blood-forming organs and certain disorders involving the immune mechanism
• Section: D55-D59 - Hemolytic anemias
• Category: D56 - Thalassemia

Browse other similar CM codes:

Reimbursement claims with a date of service on or after October 1, 2015 require the use of ICD-10-CM codes.