X99.1⚠ Requires 7th Character

Assault by knife

⚠ 7th Character Required

The appropriate 7th character is to be added to each code from category X99

This code is not valid for billing without a 7th character. Append one of the following to X99.1:

Ainitial encounterX99.1XXA Dsubsequent encounterX99.1XXD SsequelaX99.1XXS

Sub-codes of X99.1(3)

X99.1 is a non-billable header. Select a sub-code to bill.

X99.1AAssault by knife, initial encounter✓ Billable X99.1DAssault by knife, subsequent encounter✓ Billable X99.1SAssault by knife, sequela✓ Billable

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

These clinical terms, synonyms, and manifestations all map to X99.1 in the official ICD-10-CM Alphabetic Index.

Assault (homicidal) (by) (in), cutting or piercing instrument, knife Assault (homicidal) (by) (in), knife Assault (homicidal) (by) (in), wound, knife Contact (accidental), with, knife, assault

Code Hierarchy

┌20External causes of morbidity (V00-Y99)├X92-Y09Assault (X92-Y09)├X99Assault by sharp object

└X99.1Assault by knife

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