W33.13⚠ Requires 7th Character

Accidental malfunction of machine gun

⚠ 7th Character Required

The appropriate 7th character is to be added to each code from category W33

This code is not valid for billing without a 7th character. Append one of the following to W33.13:

Ainitial encounterW33.13XADsubsequent encounterW33.13XDSsequelaW33.13XS

Sub-codes of W33.13(3)

W33.13 is a non-billable header. Select a sub-code to bill.

W33.13AAccidental malfunction of machine gun, initial encounter✓ BillableW33.13DAccidental malfunction of machine gun, subsequent encounter✓ BillableW33.13SAccidental malfunction of machine gun, sequela✓ Billable

Inclusion Terms

Also Indexed As(ICD-10-CM Alphabetic Index)

These clinical terms, synonyms, and manifestations all map to W33.13 in the official ICD-10-CM Alphabetic Index.

Explosion (accidental) (of) (with secondary fire), firearm (parts) NEC, machine gunMalfunction (mechanism or component) (of), firearm, machine gunPowder burn (by) (from), machine gunRecoil, machine gun

Code Hierarchy

┌20External causes of morbidity (V00-Y99)├W20-W49Exposure to inanimate mechanical forces (W20-W49)├W33Accidental rifle, shotgun and larger firearm discharge and malfunction
└W33.13Accidental malfunction of machine gun

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