X99 — Assault by sharp object
Is X99 billable?
No — X99 is a non-billable header code. X99 groups more specific codes and cannot be submitted on a claim. A valid ICD-10-CM code must be reported at the highest level of specificity available in its branch. Select one of the 15 billable codes beneath X99.
Billable codes under this header
- X99.0XXAAssault by sharp glass, initial encounter
- X99.0XXDAssault by sharp glass, subsequent encounter
- X99.0XXSAssault by sharp glass, sequela
- X99.1XXAAssault by knife, initial encounter
- X99.1XXDAssault by knife, subsequent encounter
- X99.1XXSAssault by knife, sequela
- X99.2XXAAssault by sword or dagger, initial encounter
- X99.2XXDAssault by sword or dagger, subsequent encounter
- X99.2XXSAssault by sword or dagger, sequela
- X99.8XXAAssault by other sharp object, initial encounter
- X99.8XXDAssault by other sharp object, subsequent encounter
- X99.8XXSAssault by other sharp object, sequela
- X99.9XXAAssault by unspecified sharp object, initial encounter
- X99.9XXDAssault by unspecified sharp object, subsequent encounter
- X99.9XXSAssault by unspecified sharp object, sequela
X99 at a glance
| Code | X99 |
|---|---|
| Description | Assault by sharp object |
| Billable | No — header code |
| Code set | ICD-10-CM FY2027 |
| Valid for encounters | October 1, 2026 – September 30, 2027 |
Excludes1 — never code together
The conditions below can never be reported together with X99 on the same claim. An Excludes1 note means the two conditions cannot occur in the same patient, so reporting both is a coding error.
- assault by strike by sports equipment (Y08.0-)
Excludes1 — never code together — inherited from X92-Y09
The conditions below can never be reported together with X99 on the same claim. An Excludes1 note means the two conditions cannot occur in the same patient, so reporting both is a coding error.
What codes fall under X99? (5)
How long has X99 existed?
X99 has been in ICD-10-CM since at least FY2016, the earliest fiscal year on record here.
Derived from the official order files for FY2016–FY2026. FY2017 and FY2020 publish no order file, so those years are not covered.