D56.0
D56.0: Alpha thalassemia
Billable / specific codeICD-10-CM
D56.0 is a billable, specific ICD-10-CM code for alpha thalassemia. It is valid for submission on a claim.
Check D56.0 with the rest of the claim: free scrubberExcludes1: never code together
These conditions cannot occur together. Billing both on the same encounter is a denial.
Use additional code
Add a secondary code to capture the detail described below.
- code, if applicable, for hydrops fetalis due to alpha thalassemia (P56.99)
Inclusion terms
Alternative wordings a physician may use in the chart for this same code.
- Alpha thalassemia major
- Hemoglobin H Constant Spring
- Hemoglobin H disease
- Hydrops fetalis due to alpha thalassemia
- Severe alpha thalassemia
- Triple gene defect alpha thalassemia
Other codes that can never be billed with D56.0
Their own Excludes1 notes name this code, so the conflict is not listed above.
- D56.3Thalassemia minor
Risk adjustment
No CMS-HCC V28 category: this code does not change a RAF score.
Medicare coverage
D56.0 is named in 10 Medicare coverage policies: 10 listing it as supporting medical necessity. Which one applies depends on your Medicare contractor.
- A55717Billing and Coding: Lab: Flow Cytometry
- A56464Billing and Coding: Flow Cytometry
- A56580Billing and Coding: Computerized Axial Tomography (CT), Thorax
- A56697Billing and Coding: Non-Invasive Vascular Studies
Alphabetic index entries that lead here
- Hb›Bart's disease
- Hemoglobin›H Constant Spring
- Thalassemia›alpha(major) (severe) (triple gene defect)
- Disease, diseased›hemoglobin or Hb›Bart's
- Disease, diseased›hemoglobin or Hb›H(Hb-H) (thalassemia)
- Disease, diseased›hemoglobin or Hb›H›Constant Spring
- Hydrops›fetalis›due to›alpha thalassemia
- Hydrops›newborn›due to›alpha thalassemia
Code history
Unchanged in every release from FY2024 to FY2027.