2026 ICD-10-CM Diagnosis Code D72.10Eosinophilia, unspecified

ICD-10-CM Codes›D50–D89›D70-D77›D72

ICD-10-CM D72.10
CMSSource: CMS FY 2026 ICD-10-CM dataset · Effective Oct 1, 2025 – Sep 30, 2026

D72.10 is a billable ICD-10-CM diagnosis code for eosinophilia, unspecified. It is valid on HIPAA claims for fiscal year 2026 (October 1, 2025 through September 30, 2026) and groups to MS-DRG 814 through 816. Coders also document this condition as acquired eosinophilia. In AHRQ's Clinical Classifications Software (CCSR), this diagnosis falls under Diseases of white blood cells.

Code Identity

ICD-10-CM Code
D72.10
Billable Status
Yes — Valid for Submission
Code Describes
Eosinophilia, unspecified
Short Description
Eosinophilia, unspecified
Same as the full description in the CMS dataset.
Parent Code
D72.1
Eosinophilia

Code Classification

ChapterD50–D89Diseases of the blood and blood-forming organs and certain disorders involving the immune mechanism
SectionD70-D77Other disorders of blood and blood-forming organs
CategoryD72Other disorders of white blood cells
This CodeD72.10Eosinophilia, unspecified

Approximate SynonymsGuidance

Alternate terms and clinical phrases that map to this code.

  • Acquired eosinophilia
  • Allergic eosinophilia
  • Disorder characterized by eosinophilia
  • Disorder of eosinophil
  • Drug-induced eosinophilia
  • Eosinophil count above reference range
  • Hypereosinophilia
  • Idiopathic eosinophilia
  • Secondary eosinophilia

Index to Diseases and InjuriesGuidance

Alphabetical index entries that point to this code.

Clinical ClassificationClinical

AHRQ’s CCSR groups this code into broader clinical categories.

CCSR BLD007
Diseases of white blood cells
Default principal diagnosis: inpatient Yes · outpatient Yes

Clinical InformationClinical

  • Eosinophilia

    abnormal increase of eosinophils in the blood, tissues or organs.

  • Eosinophilia-Myalgia Syndrome

    a complex systemic syndrome with inflammatory and autoimmune components that affect the skin, fascia, muscle, nerve, blood vessels, lung, and heart. diagnostic features generally include eosinophilia, myalgia severe enough to limit usual activities of daily living, and the absence of coexisting infectious, autoimmune or other conditions that may induce eosinophilia. biopsy of affected tissue reveals a microangiopathy associated with diffuse inflammation involving connective tissue. (from spitzer et al., j rheumatol suppl 1996 oct;46:73-9; blackburn wd, semin arthritis rheum 1997 jun;26(6):788-93)

  • Pulmonary Eosinophilia

    a condition characterized by infiltration of the lung with eosinophils due to inflammation or other disease processes. major eosinophilic lung diseases are the eosinophilic pneumonias caused by infections, allergens, or toxic agents.

  • Eosinophils

    granular leukocytes with a nucleus that usually has two lobes connected by a slender thread of chromatin, and cytoplasm containing coarse, round granules that are uniform in size and stainable by eosin.

Patient EducationClinical

Eosinophilic Disorders

Eosinophils are a type of white blood cell. They help fight off infections and play a role in your body's immune response. They can also build up and cause inflammation.

Read the full article at MedlinePlus

Courtesy of MedlinePlus, a service of the U.S. National Library of Medicine.

Code History & ChangesHistory

Replacement D72.10 replaces the following previously assigned code(s):

  • D72.1 - Eosinophilia
FY 2021AddedAdded to the ICD-10-CM code setEffective October 1, 2020.
FY 2022–2025No changes
FY 2026CurrentCurrent code set, no changesEffective October 1, 2025 through September 30, 2026.

Questions About D72.10Overview

What is the ICD-10 code for eosinophilia, unspecified?

The ICD-10-CM code for eosinophilia, unspecified is D72.10 (sometimes written as D7210). It is billable on HIPAA-covered claims from October 1, 2025 through September 30, 2026.

Is D72.10 (Eosinophilia) a billable code?

Yes. This is a billable ICD-10-CM code, specific enough to report eosinophilia, unspecified on HIPAA-covered claims from October 1, 2025 through September 30, 2026.

What MS-DRG does D72.10 group to?

When eosinophilia, unspecified is the principal diagnosis on an inpatient stay, it groups to MS-DRG 814, 815, 816, with relative weights from 0.6320 to 2.1267 depending on complications. Higher weights mean higher Medicare reimbursement.