Is ICD-10-CM code D56 billable?

No, D56 (Thalassemia) is a non-billable ICD-10-CM code. It must be coded to a more specific subcategory before it can be used for reimbursement.

What chapter does ICD-10-CM code D56 belong to?

D56 belongs to Chapter 3 of the ICD-10-CM tabular list: D50–D89 (Diseases of the Blood and Blood-Forming Organs).

D56

Non-Billable

ChapterD50–D89

Rankcategory

Description

Thalassemia

About ICD-10-CM code D56

The ICD-10-CM tabular list places Thalassemia at code D56, inside D50-D89 Diseases of the Blood and Blood-Forming Organs, within Hemolytic anemias (D55-D59). You should not submit this code on claims since it lacks billing specificity, use a child code.

Use a more specific code (8 billable)

D56.0Alpha thalassemia D56.1Beta thalassemia D56.2Delta-beta thalassemia D56.3Thalassemia minor D56.4Hereditary persistence of fetal hemoglobin [HPFH]D56.5Hemoglobin E-beta thalassemia D56.8Other thalassemias D56.9Thalassemia, unspecified

Metadata & Insights

•Non-billable category (requires more specific sub-code).
•Chapter 3: Diseases of the Blood and Blood-Forming Organs (D50-D89).

CH3 Parent Instructions

Excludes2(Not included here. Code separately if applicable.)

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)

Instructional Notes

Excludes1(Not coded here. Use a different code.)

sickle-cell thalassemia (D57.4-)

Clinical Hierarchy

BillableHas subcodes

CH3Diseases of the blood and blood-forming organs and certain disorders involving the immune mechanism (D50-D89)

D55-D59Hemolytic anemias (D55-D59)

D56ThalassemiaNot billable

D56.0Alpha thalassemiaBillable

D56.1Beta thalassemiaBillable

D56.2Delta-beta thalassemiaBillable

D56.3Thalassemia minorBillable

D56.4Hereditary persistence of fetal hemoglobin [HPFH]Billable

D56.5Hemoglobin E-beta thalassemiaBillable

D56.8Other thalassemiasBillable

D56.9Thalassemia, unspecifiedBillable

Applicable Ancestor Context

The following parent sections contain instructions or notes that apply to D56:

chapterCH3

Diseases of the blood and blood-forming organs and certain disorders involving the immune mechanism (D50-D89)

View context instructions

MS-DRG Classification

2026

No direct MS-DRG triggers identified.

Cross Reference

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