2026 ICD-10-CM Diagnosis Code D71Functional disorders of polymorphonuclear neutrophils

ICD-10-CM Codes›D50–D89›D70-D77›D71

ICD-10-CM D71
CMSSource: CMS FY 2026 ICD-10-CM dataset · Effective Oct 1, 2025 – Sep 30, 2026

D71 is a non-billable ICD-10-CM category code for functional disorders of polymorphonuclear neutrophils, so it cannot be submitted on claims. Use a more specific code from this category instead, such as D71.1, D71.8, and D71.9. In AHRQ's Clinical Classifications Software (CCSR), this diagnosis falls under Diseases of white blood cells.

Code Identity

ICD-10-CM Code
D71
Billable Status
No — Non-Billable Category
Code Describes
Functional disorders of polymorphonuclear neutrophils
Chapter
D70-D77
Other disorders of blood and blood-forming organs

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
CategoryD71Functional disorders of polymorphonuclear neutrophils
This CodeD71Functional disorders of polymorphonuclear neutrophils

Specific Coding for Functional disorders of polymorphonuclear neutrophilsOverview

Non-specific codes like D71 require more characters. Use one of these billable codes instead:

  • Use D71.1 for Leukocyte adhesion deficiency

  • Use D71.8 for Other functional disorders of polymorphonuclear neutrophils

  • Use D71.9 for Functional disorders of polymorphonuclear neutrophils, unspecified

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

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 D71 to ICD-9-CMHistory

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

ICD-9-CM
288.1 Function dis neutrophils
Exact Match The mapping is direct, with no qualifiers.

Code History & ChangesHistory

Replaced This code was replaced in the FY 2026 code set by:

  • D71.1 - Leukocyte adhesion deficiency
  • D71.1 - Leukocyte adhesion deficiency
  • D71.1 - Leukocyte adhesion deficiency
  • D71.1 - Leukocyte adhesion deficiency
  • D71.1 - Leukocyte adhesion deficiency
  • D71.1 - Leukocyte adhesion deficiency
  • D71.8 - Other functional disorders of polymorphonuclear neutrophils
  • D71.8 - Other functional disorders of polymorphonuclear neutrophils
  • D71.8 - Other functional disorders of polymorphonuclear neutrophils
  • D71.8 - Other functional disorders of polymorphonuclear neutrophils
  • D71.8 - Other functional disorders of polymorphonuclear neutrophils
  • D71.8 - Other functional disorders of polymorphonuclear neutrophils
  • D71.9 - Functional disorders of polymorphonuclear neutrophils, unsp
  • D71.9 - Functional disorders of polymorphonuclear neutrophils, unsp
  • D71.9 - Functional disorders of polymorphonuclear neutrophils, unsp
  • D71.9 - Functional disorders of polymorphonuclear neutrophils, unsp
  • D71.9 - Functional disorders of polymorphonuclear neutrophils, unsp
  • D71.9 - Functional disorders of polymorphonuclear neutrophils, unsp
FY 2016AddedAdded to the ICD-10-CM code setEffective October 1, 2015, the first year of ICD-10-CM.
FY 2017–2025No changes
FY 2026CurrentRevised in the current code setEffective October 1, 2025 through September 30, 2026.

Questions About D71Overview

Is D71 (Functional disorders of polymorphonuclear neutrophils) a billable code?

No. This is a category header that groups the codes for functional disorders of polymorphonuclear neutrophils, and headers cannot be submitted on claims. Claims for functional disorders of polymorphonuclear neutrophils need a more specific code from this category, such as D71.1, D71.8, and D71.9.

What is the ICD-9 equivalent of D71?

Under the General Equivalence Mappings, functional disorders of polymorphonuclear neutrophils converts to ICD-9-CM 288.1 (function dis neutrophils). The mapping is a direct match.

Footnotes

[1] Chronic - a chronic condition code indicates a condition lasting 12 months or longer and its effect on the patient based on one or both of the following criteria:

  • The condition results in the need for ongoing intervention with medical products,treatment, services, and special equipment
  • The condition places limitations on self-care, independent living, and social interactions.