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ICD-10-CM Current in FY 2027

D56.0

Alpha thalassemia

Release
FY 2027
Effective
Official source (opens in a new tab)

Hierarchy

Where D56.0 sits in the official hierarchy. Each level is the code it is classified under.

  1. D56 Parent Thalassemia
  2. D56.0 This code Alpha thalassemia

Official Coding Notes

Reproduced verbatim from the FY 2027 ICD-10-CM files. Notes labelled as inherited are declared on a parent code and apply here too.

Inclusion Terms

Alpha thalassemia major

Inclusion Terms

Hemoglobin H Constant Spring

Inclusion Terms

Hemoglobin H disease

Inclusion Terms

Hydrops fetalis due to alpha thalassemia

Inclusion Terms

Severe alpha thalassemia

Inclusion Terms

Triple gene defect alpha thalassemia

Excludes1

sickle-cell thalassemia ( D57.4- )

Inherited from D56 — Thalassemia

Excludes1

alpha thalassemia trait or minor ( D56.3 )

Excludes1

asymptomatic alpha thalassemia ( D56.3 )

Excludes1

hydrops fetalis due to isoimmunization ( P56.0 )

Excludes1

hydrops fetalis not due to immune hemolysis ( P83.2 )

Use Additional Code

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

Version History

How D56.0 appears in each release imported from the official files, newest first.

  1. FY 2027 Effective

    Current

    Alpha thalassemia

  2. FY 2026 Effective

    Unchanged

    Alpha thalassemia

Related Codes

Other codes under D56

Codes whose official notes reference D56.0

Data Source

Code information on this page is derived from the FY 2027 ICD-10-CM files published by CDC NCHS and CMS.

Release
FY 2027
Effective
Source file
icd10cm-code-descriptions-2027.zip

Official ICD-10-CM source files (opens in a new tab)

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