D71.9Billable

Functional disorders of polymorphonuclear neutrophils, unspecified

Short description: Functional disorders of polymorphonuclear neutrophils, unsp

Chapter
3. Diseases of the blood and blood-forming organs and certain disorders involving the immune mechanism
Category
D71
Effective date
October 1, 2026

Related codes in category D71

D71Functional disorders of polymorphonuclear neutrophilsD71.1Leukocyte adhesion deficiencyYesD71.8Other functional disorders of polymorphonuclear neutrophilsYes

Frequently asked questions

What is ICD-10 code D71.9?

D71.9 is an ICD-10-CM diagnosis code for Functional disorders of polymorphonuclear neutrophils, unspecified.

Is D71.9 a billable code?

Yes. D71.9 is billable and specific enough to be used on a claim.

What ICD-10-CM chapter is D71.9 in?

D71.9 falls under Chapter 3: Diseases of the blood and blood-forming organs and certain disorders involving the immune mechanism.

When did D71.9 become effective?

D71.9 has been effective since October 1, 2026, per the CMS/CDC ICD-10-CM annual release.

What other codes are related to D71.9?

D71.9 belongs to category D71, which includes 3 other codes — see the related codes list on this page.

ICD-10-CM data maintained by CDC/CMS (public domain). Always verify codes with authoritative sources before making coding or billing decisions.