Y28.1Header code — not billable
Contact with knife, undetermined intent
- Chapter
- 20. External causes of morbidity
- Category
- Y28
- Effective date
- October 1, 2026
Related codes in category Y28
Y28Contact with sharp object, undetermined intentY28.0Contact with sharp glass, undetermined intentY28.0XXAContact with sharp glass, undetermined intent, init encntrYesY28.0XXDContact with sharp glass, undetermined intent, subs encntrYesY28.0XXSContact with sharp glass, undetermined intent, sequelaYesY28.1XXAContact with knife, undetermined intent, initial encounterYesY28.1XXDContact with knife, undetermined intent, subs encntrYesY28.1XXSContact with knife, undetermined intent, sequelaYesY28.2Contact with sword or dagger, undetermined intentY28.2XXAContact w sword or dagger, undetermined intent, init encntrYesY28.2XXDContact w sword or dagger, undetermined intent, subs encntrYesY28.2XXSContact with sword or dagger, undetermined intent, sequelaYes
Frequently asked questions
What is ICD-10 code Y28.1?
Y28.1 is an ICD-10-CM diagnosis code for Contact with knife, undetermined intent.
Is Y28.1 a billable code?
No. Y28.1 is a category/header code, not billable on its own — use one of its more specific child codes instead.
What ICD-10-CM chapter is Y28.1 in?
Y28.1 falls under Chapter 20: External causes of morbidity.
When did Y28.1 become effective?
Y28.1 has been effective since October 1, 2026, per the CMS/CDC ICD-10-CM annual release.
What other codes are related to Y28.1?
Y28.1 belongs to category Y28, 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.