2026 ICD-10-CM Diagnosis Code D72.829Elevated white blood cell count, unspecified

ICD-10-CM Codes›D50–D89›D70-D77›D72

ICD-10-CM D72.829
CMSSource: CMS FY 2026 ICD-10-CM dataset · Effective Oct 1, 2025 – Sep 30, 2026

D72.829 is a billable ICD-10-CM diagnosis code for elevated white blood cell count, 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 blood leukocyte number above reference range. In AHRQ's Clinical Classifications Software (CCSR), this diagnosis falls under Diseases of white blood cells.

Code Identity

ICD-10-CM Code
D72.829
Billable Status
Yes — Valid for Submission
Code Describes
Elevated white blood cell count, unspecified
Short Description
Elevated white blood cell count, unspecified
Same as the full description in the CMS dataset.
Parent Code
D72.82
Elevated white blood cell count

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 CodeD72.829Elevated white blood cell count, unspecified

Approximate SynonymsGuidance

Alternate terms and clinical phrases that map to this code.

  • Blood leukocyte number above reference range
  • Leukocytosis
  • Post-splenectomy disorder
  • Post-splenectomy leukocytosis

Tabular List NotesGuidance

Coding notes and annotation back-references applicable to this code.

Inclusion Terms

  • Elevated leukocytes, unspecified
  • Leukocytosis, unspecified

Index to Diseases and InjuriesGuidance

Alphabetical index entries that point to this code.

External Cause of Injuries IndexGuidance

References for this code in the External Cause of Injuries Index.

    • Elevated, elevation
      • leukocytes
    • Elevated, elevation
      • white blood cell count
    • Leukocytosis

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

  • Leukocytosis

    a transient increase in the number of leukocytes in a body fluid.

  • Virulence Factors, Bordetella

    a set of bacterial adhesins and toxins, biological produced by bordetella organisms that determine the pathogenesis of bordetella infections, such as whooping cough. they include filamentous hemagglutinin; fimbriae proteins; pertactin; pertussis toxin; adenylate cyclase toxin; dermonecrotic toxin; tracheal cytotoxin; bordetella lipopolysaccharides; and tracheal colonization factor.

Patient EducationClinical

Blood Disorders

Your blood is living tissue made up of liquid and solids. The liquid part, called plasma, is made of water, salts and protein. Over half of your blood is plasma. The solid part of your blood contains red blood cells, white blood cells and platelets.

Read the full article at MedlinePlus

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

Convert D72.829 to ICD-9-CMHistory

The closest ICD-9-CM equivalents under the General Equivalence Mappings.

ICD-9-CM
288.60 Leukocytosis NOS
Exact Match The mapping is direct, with no qualifiers.

Code HistoryHistory

FY 2016AddedAdded to the ICD-10-CM code setEffective October 1, 2015, the first year of ICD-10-CM.
FY 2017–2025No changes
FY 2026CurrentCurrent code set, no changesEffective October 1, 2025 through September 30, 2026.

Questions About D72.829Overview

Is D72.829 (Elevated white blood cell count) a billable code?

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

What MS-DRG does D72.829 group to?

When elevated white blood cell count, 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.

What is the ICD-9 equivalent of D72.829?

Under the General Equivalence Mappings, elevated white blood cell count, unspecified converts to ICD-9-CM 288.60 (leukocytosis NOS). The mapping is a direct match.

Footnotes

[1] Not chronic - A diagnosis code that does not fit the criteria for chronic condition (duration, ongoing medical treatment, and limitations) is considered not chronic. Some codes designated as not chronic are acute conditions. Other diagnosis codes that indicate a possible chronic condition, but for which the duration of the illness is not specified in the code description (i.e., we do not know the condition has lasted 12 months or longer) also are considered not chronic.