ICD-10-CM D56 is the diagnosis code for Thalassemia. This code falls under the section "Hemolytic anemias" within Chapter 3 — Diseases of the blood and blood-forming organs and certain disorders involving the immune mechanism (D50-D89). It is a non-billable/non-specific ICD-10-CM code that should not be used for reimbursement. A more specific sub-code is required for billing. Medical coders and healthcare providers use this code to document and classify diagnoses in electronic health records, insurance claims, and clinical databases.
The following conditions should never be coded at the same time as D56. They are mutually exclusive:
Understanding where D56 sits in the ICD-10-CM classification helps ensure proper coding:
No, D56 is a non-billable/non-specific code. You should use a more specific sub-code for billing and reimbursement.
D56 is the ICD-10-CM diagnosis code for "Thalassemia". It is used by healthcare providers to classify and document this condition in medical records and insurance claims.
D56 is located in Section D55-D59 — "Hemolytic anemias" within Chapter 3 of the ICD-10-CM Tabular List.
D56 has 8 sub-code(s) that provide more specific detail: D56.0, D56.1, D56.2, D56.3, D56.4 and more.
Use D56 when the patients documented diagnosis matches "Thalassemia" and the clinical documentation supports this level of specificity. Always verify with the latest ICD-10-CM guidelines and payer requirements.
The ICD-10-CM code for Thalassemia is D56.
No, D56 is non-billable. Use a more specific sub-code for primary diagnosis billing.
D56 is in Chapter 3 of the ICD-10-CM Tabular List.
Type 1 Excludes for D56 include: sickle-cell thalassemia (D57.4-).
Yes, D56 is a valid ICD-10-CM code for the 2026 fiscal year, subject to official CMS updates.