Is X93 a billable ICD-10-CM code?

No. X93 is a non-billable header code. Code to a higher level of specificity using one of its child codes.

Where does X93 sit in the tabular list?

External causes of morbidity (V00-Y99), in the block Assault (X92-Y09).

What cannot be coded together with X93?

X93 carries an Excludes1 note, which means the conditions it lists can never be coded together with it on the same encounter.

X93

X93 — Assault by handgun discharge

Non-billable headerICD-10-CM

X93 is a non-billable header ICD-10-CM code for assault by handgun discharge. It cannot be billed on its own: choose one of the more specific child codes below. This code also requires a 7th character before it is complete.

This code requires a 7th character

The appropriate 7th character is to be added to code X93

A: initial encounter
D: subsequent encounter
S: sequela

Excludes1 — never code together

These conditions cannot occur together. Billing both on the same encounter is a denial.

Very pistol (X95.8)

Inclusion terms

Alternative wordings a physician may use in the chart for this same code.

Assault by discharge of gun for single hand use
Assault by discharge of pistol
Assault by discharge of revolver

Other codes that can never be billed with X93

These codes carry an Excludes1 note pointing at X93. The conflict binds both ways, but ICD-10-CM only writes it down on one side — so you would not find this by reading X93 alone.

W32Accidental handgun discharge and malfunction
Y04Assault by bodily force

Risk adjustment

X93 does not map to an HCC and does not risk-adjust under CMS-HCC V28. That is normal — most ICD-10 codes do not. It still needs to be coded correctly; it just will not move a RAF score.

How X93 is indexed

Coders do not find codes by browsing the tabular list — they look them up in the alphabetic index, under the word the physician wrote. These are the index entries that lead here, so you can see which chart wordings map to X93.

Assault›firearm›handgun
Discharge›firearm›handgun›assault
Discharge›firearm›handgun›homicide(attempt)

Code to one of these instead X93

3 child codes. Green means billable.

Questions about X93

Is X93 a billable ICD-10-CM code?: No. X93 is a non-billable header code. Code to a higher level of specificity using one of its child codes.
Where does X93 sit in the tabular list?: External causes of morbidity (V00-Y99), in the block Assault (X92-Y09).
What cannot be coded together with X93?: X93 carries an Excludes1 note, which means the conditions it lists can never be coded together with it on the same encounter.