X99

Non-billable

Assault by sharp object

X99 is the ICD-10-CM code for Assault by sharp object. It is a non-billable category code — use a more specific child code such as X99.0 for billing.

Status
Header (non-billable)
Chapter
V00-Y99
Subcodes
5
Edition
FY2026

V00-Y99 External causes of morbidity

What this means — in plain language

MedlinePlus · NIH

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. Injuries can happen at work or play , indoors or outdoors, driving a car, or walking across the street. Wounds are injuries that break the skin or other body tissues. They…

Read more about Wounds and Injuries at MedlinePlus ↗

Source: U.S. National Library of Medicine (MedlinePlus). Informational only — not medical advice.

Excludes1 — not coded here

  • assault by strike by sports equipment (Y08.0-)

Frequently asked questions

What is ICD-10 code X99?
X99 is the ICD-10-CM code for "Assault by sharp object". It falls under V00-Y99 External causes of morbidity.
Is X99 a billable code?
No — X99 is a non-billable header code. Use a more specific child code (such as X99.0) for billing.
What are the subcodes of X99?
X99 has 5 more specific child codes, including X99.0, X99.1, X99.2.
What is excluded from X99?
Excludes1 (not coded here): assault by strike by sports equipment (Y08.0-).

Source: CMS ICD-10-CM FY2026. For informational purposes only — not medical advice. See our medical disclaimer.

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