X99.1XXSBillable
Assault by knife, sequela
- Chapter
- 20. External causes of morbidity
- Category
- X99
- Effective date
- October 1, 2026
Related codes in category X99
X99Assault by sharp objectX99.0Assault by sharp glassX99.0XXAAssault by sharp glass, initial encounterYesX99.0XXDAssault by sharp glass, subsequent encounterYesX99.0XXSAssault by sharp glass, sequelaYesX99.1Assault by knifeX99.1XXAAssault by knife, initial encounterYesX99.1XXDAssault by knife, subsequent encounterYesX99.2Assault by sword or daggerX99.2XXAAssault by sword or dagger, initial encounterYesX99.2XXDAssault by sword or dagger, subsequent encounterYesX99.2XXSAssault by sword or dagger, sequelaYes
Frequently asked questions
What is ICD-10 code X99.1XXS?
X99.1XXS is an ICD-10-CM diagnosis code for Assault by knife, sequela.
Is X99.1XXS a billable code?
Yes. X99.1XXS is billable and specific enough to be used on a claim.
What ICD-10-CM chapter is X99.1XXS in?
X99.1XXS falls under Chapter 20: External causes of morbidity.
When did X99.1XXS become effective?
X99.1XXS has been effective since October 1, 2026, per the CMS/CDC ICD-10-CM annual release.
What other codes are related to X99.1XXS?
X99.1XXS belongs to category X99, which includes 12 other codes — see the related codes list on this page.
ICD-10-CM data maintained by CDC/CMS (public domain). Always verify codes with authoritative sources before making coding or billing decisions.