X78.1XXA
✓ Billable
Intentional self-harm by knife, initial encounter
ICD-10-CM · FY2026 · External Causes of Morbidity
Code
X78.1XXA
System
ICD-10-CM
Billable
Yes — valid for submission
Effective
FY2026
Chapter
External Causes of Morbidity
Source
CMS / CDC NCHS
⚠ Verify before billing. Confirm against the current CMS/NCHS ICD-10-CM files and your payer's rules before claims submission.
Frequently asked questions
What is ICD-10 code X78.1XXA?
ICD-10-CM code X78.1XXA represents Intentional self-harm by knife, initial encounter. It is a billable diagnosis code in the External Causes of Morbidity chapter, effective October 1, 2025 – September 30, 2026.
Is X78.1XXA billable?
Yes. X78.1XXA is a valid billable ICD-10-CM code for insurance claims and clinical documentation.
What chapter is X78.1XXA in?
X78.1XXA belongs to the External Causes of Morbidity chapter (V00–Y99) of ICD-10-CM.
Related codes in the X78 category
X78
Intentional self-harm by sharp object
Non-billable
X78.0
Intentional self-harm by sharp glass
Non-billable
X78.1
Intentional self-harm by knife
Non-billable
X78.2
Intentional self-harm by sword or dagger
Non-billable
X78.8
Intentional self-harm by other sharp object
Non-billable
X78.9
Intentional self-harm by unspecified sharp object
Non-billable
X78.0XXA
Intentional self-harm by sharp glass, initial encounter
Billable
X78.0XXD
Intentional self-harm by sharp glass, subsequent encounter
Billable
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