D56.3

ICD-10Billable

Thalassemia minor

Official ICD-10-CM descriptor (FY2026)

Thalassemia minor

D56.3 is valid for submission on a claim — CMS flags it as a billable, specific code.

Inclusion terms

  • Alpha thalassemia minor
  • Alpha thalassemia silent carrier
  • Alpha thalassemia trait
  • Beta thalassemia minor
  • Beta thalassemia trait
  • Delta-beta thalassemia minor
  • Delta-beta thalassemia trait
  • Thalassemia trait NOS

Excludes1

Not coded here. An Excludes1 code should never be reported at the same time as the code above it.

  • alpha thalassemia (D56.0)
  • beta thalassemia (D56.1)
  • delta-beta thalassemia (D56.2)
  • hemoglobin E-beta thalassemia (D56.5)
  • sickle-cell trait (D57.3)

Related codes in D56

Where this code sits

Parent code
D56

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Source

ICD-10-CM FY2026. Centers for Medicare & Medicaid Services (CMS) / National Center for Health Statistics (NCHS), “2026 ICD-10-CM Code Descriptions in Tabular Order” (icd10cm_order_2026.txt). Download the original file from cms.gov. Public domain (US Government work). Descriptors, billable flags and instructional notes on this page are reproduced from that file without modification. Krasyn adds no clinical guidance.

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