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X99 ICD-10-CM Code: Assault by sharp object

X99 isn’t billable on its own. Choose one of the 15 billable codes beneath it, the one the documentation supports.

Official description

X99

Assault by sharp object

ICD-10-CM diagnosis code · United States clinical modification

Billable codes under X99

X99 can’t be reported on its own. Choose the code below that matches what the note documents.

Where X99 sits

  1. 1

    Chapter 20

    External causes of morbidity (V00-Y99)

  2. 2

    Section

    Assault (X92-Y09)

  3. 3

    Category X99

    Assault by sharp object

  4. 4

    Code X99

    Assault by sharp object

Notes for this code

Inclusion terms

No inclusion terms are listed for X99.

Code first

No “code first” instruction is listed for X99.

Use additional code

No “use additional code” instruction is listed for X99.

Excludes1

Conditions that should not be reported together with this code.

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

Excludes2

Conditions not included here that may be reported separately when present.

No Excludes2 note is listed for X99.

Source and release

Data release
U.S. ICD-10-CM · FY 2027
Effective date
Oct 1, 2026

This reference is generated from Vero’s ICD-10-CM description, hierarchy, and code-note dataset. The visible content and structured data share that source.

Review the CDC/NCHS ICD-10-CM source

Frequently asked questions

What does ICD-10-CM code X99 mean?

X99 is the FY 2027 U.S. ICD-10-CM code for “Assault by sharp object.”

Is X99 a billable or specific ICD-10-CM code?

No. X99 has 15 billable codes beneath it in the FY 2027 reference data. Select the code that matches the documentation and confirm the active code set and payer requirements.

Where is X99 located in ICD-10-CM?

X99 is listed in Chapter 20, External causes of morbidity (V00-Y99), within Assault (X92-Y09) (X92–Y09), under category X99, Assault by sharp object.

What coding notes are listed for X99?

No inclusion terms are listed for X99 in this reference record. No code-first instruction is listed. Excludes1 notes: assault by strike by sports equipment (Y08.0-). No Excludes2 note is listed.