2026 ICD-10-CM Diagnosis Code Y28Contact with sharp object, undetermined intent

ICD-10-CM Codes›V01–Y99›Y21-Y33›Y28

ICD-10-CM Y28
CMSSource: CMS FY 2026 ICD-10-CM dataset · Effective Oct 1, 2025 – Sep 30, 2026

Y28 is a non-billable ICD-10-CM category code for contact with sharp object, undetermined intent, so it cannot be submitted on claims. Use a more specific code from this category instead, such as Y28.0XXA, Y28.0XXD, Y28.0XXS, and Y28.1XXA.

Code Identity

ICD-10-CM Code
Y28
Billable Status
No — Non-Billable Category
Code Describes
Contact with sharp object, undetermined intent
Chapter
Y21-Y33
Event of undetermined intent

Code Classification

ChapterV01–Y99External causes of morbidity and mortality
SectionY21-Y33Event of undetermined intent
CategoryY28Contact with sharp object, undetermined intent
This CodeY28Contact with sharp object, undetermined intent

Specific Coding for Contact with sharp object, undetermined intentOverview

Non-specific codes like Y28 require more characters. Use one of these billable codes instead:

  • Y28.0 for Contact with sharp glass, undetermined intent

  • Y28.1 for Contact with knife, undetermined intent

  • Y28.2 for Contact with sword or dagger, undetermined intent

  • Y28.8 for Contact with other sharp object, undetermined intent

  • Y28.9 for Contact with unspecified sharp object, undetermined intent

Tabular List NotesGuidance

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

7th Character Note

  • The appropriate 7th character is to be added to each code from category Y28

7th Character

  • A - initial encounter
  • D - subsequent encounter
  • S - sequela

Patient EducationClinical

Wounds and Injuries

An injury is damage to your body. It is a general term that refers to harm caused by accidents, falls, hits, weapons, and more. In the U.S., millions of people injure themselves every year. These injuries range from minor to life-threatening.

Read the full article at MedlinePlus

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

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 Y28Overview

Is Y28 (Contact with sharp object, undetermined intent) a billable code?

No. This is a category header that groups the codes for contact with sharp object, undetermined intent, and headers cannot be submitted on claims. Claims for contact with sharp object, undetermined intent need a more specific code from this category, such as Y28.0XXA, Y28.0XXD, and Y28.0XXS.