D56.3

Thalassemia minor

Billable code

This code does not map to a risk-adjusting HCC in the loaded models.

Coding notes

Excludes 1 never coded together · Excludes 2 may co-exist

This code · D56.3
Excludes 1

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

Synonyms

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

Inherited from D56Thalassemia
Excludes 1

sickle-cell thalassemia (D57.4-)

Inherited from chapter 3Diseases of the blood and blood-forming organs and certain disorders involving the immune mechanism
Excludes 2

autoimmune disease (systemic) NOS (M35.9) certain conditions originating in the perinatal period (P00-P96) complications of pregnancy, childbirth and the puerperium (O00-O9A) congenital malformations, deformations and chromosomal abnormalities (Q00-Q99) endocrine, nutritional and metabolic diseases (E00-E88) human immunodeficiency virus [HIV] disease (B20) injury, poisoning and certain other consequences of external causes (S00-T88) neoplasms (C00-D49) symptoms, signs and abnormal clinical and laboratory findings, not elsewhere classified (R00-R94)

Official Guidelines for D56.3

FY 2026 ›