D72.1 – Eosinophilia

ICD-10-CM 2027 diagnosis code · Other disorders of blood and blood-forming organs

Non-billable header

ICD-10-CM code D72.1

Code: D72.1 (claims format: D721)
Description: Eosinophilia
Billable: No – use a more specific code below
Valid for: Dates of service October 1, 2026 – September 30, 2027 (FY2027)
Chapter: 3. Diseases of the blood and blood-forming organs and certain disorders involving the immune mechanism (D50-D89)
Block: D70-D77 Other disorders of blood and blood-forming organs
Parent codes: D72

Billable codes under D72.1

D72.1 is a header code and cannot be used on claims. Choose the most specific code:

D72.10 – Eosinophilia, unspecifiedBillable
D72.11 – Hypereosinophilic syndrome [HES]Header (more codes below)
D72.12 – Drug rash with eosinophilia and systemic symptoms syndromeBillable
D72.18 – Eosinophilia in diseases classified elsewhereBillable
D72.19 – Other eosinophiliaBillable

Notes for D72.1

Excludes2 (not included here):

Löffler's syndrome (J82.89)
pulmonary eosinophilia (J82.-)

Notes inherited from parent codes

Instructional notes at a category or block level apply to every code below it.

D72 – Other disorders of white blood cells

Excludes1 (not coded here):

basophilia (D72.824)
immunity disorders (D80-D89)
preleukemia (syndrome) (D46.9)

Excludes2 (not included here):

neutropenia (D70)

Related codes in D72

Frequently asked questions

What is ICD-10 code D72.1?

D72.1 is the ICD-10-CM code for eosinophilia, in the block D70-D77 (Other disorders of blood and blood-forming organs).

Is D72.1 a billable code?

No. D72.1 is a header code with more specific child codes; report one of the billable codes listed above.

What category does D72.1 belong to?

It belongs to category D72 – Other disorders of white blood cells.

Source: CDC/NCHS ICD-10-CM FY2027 code files, tabular list and index. Reference only – code assignment must follow the official ICD-10-CM guidelines and documentation in the medical record.