Assault by sharp object
In Assault (X92-Y09), chapter 20: External Causes of Morbidity
15 billable codes under X99: none are a CC or MCC; none map to an HCC.
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Instructional notes
Excludes1: not coded here, use a different code
- assault by strike by sports equipment (Y08.0-)
Also applies, from Assault (X92-Y09)
These notes sit on X92-Y09 and apply to every code under it, including X99.
Official coding guidelines
From the ICD-10-CM Official Guidelines for Coding and Reporting, FY 2027 (CMS and NCHS). Links open the PDF at the right page.
Covers how to report external cause codes (V00-Y99) describing cause, intent, place, activity, and status. They are never principal or first-listed, and reporting is voluntary unless required.
- General External Cause Coding Guidelines (page 88)
- Place of Occurrence Guideline (page 89)
- Activity Code (page 89)
- Place of Occurrence, Activity, and Status Codes Used with other External Cause Code (page 89)
- If the Reporting Format Limits the Number of External Cause Codes (page 90)
- Multiple External Cause Coding Guidelines (page 90)
- Child and Adult Abuse Guideline (page 90)
- Unknown or Undetermined Intent Guideline (page 91)
All codes under X99
X99 can't be used on a claim. Pick a billable code below; grey headings group them.
- X99.0Assault by sharp glass
- X99.0XXAAssault by sharp glass, initial encounter
- X99.0XXDAssault by sharp glass, subsequent encounter
- X99.0XXSAssault by sharp glass, sequela
- X99.1Assault by knife
- X99.1XXAAssault by knife, initial encounter
- X99.1XXDAssault by knife, subsequent encounter
- X99.1XXSAssault by knife, sequela
- X99.2Assault by sword or dagger
- X99.2XXAAssault by sword or dagger, initial encounter
- X99.2XXDAssault by sword or dagger, subsequent encounter
- X99.2XXSAssault by sword or dagger, sequela
- X99.8Assault by other sharp object
- X99.8XXAAssault by other sharp object, initial encounter
- X99.8XXDAssault by other sharp object, subsequent encounter
- X99.8XXSAssault by other sharp object, sequela
- X99.9Assault by unspecified sharp object
- X99.9XXAAssault by unspecified sharp object, initial encounter
- X99.9XXDAssault by unspecified sharp object, subsequent encounter
- X99.9XXSAssault by unspecified sharp object, sequela
X99 MS-DRGs
This code does not group to an MS-DRG as a principal diagnosis.
Other codes that refer to X99
Notes on these codes point to X99.
- Y04 Excludes1: use of weapon (X93-X95, X99, Y00)
About the condition
Plain-language background from MedlinePlus (National Library of Medicine), not coding guidance.
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. Injuries can happen at work or play, indoors or outdoors, driving a car, or walking across the street.
Read more about wounds and injuries on MedlinePlusCode history
Valid since FY2016, when ICD-10-CM took effect on October 1, 2015. No changes since.