ICD-10-CM Codes
V00-Y99
X71-X83
X78-
2023 ICD-10-CM Diagnosis Code X78.1

2023 ICD-10-CM Diagnosis Code X78.1

Intentional self-harm by knife

2016

2017

2018

2019

2020

2021

2022

2023

Non-Billable/Non-Specific Code

X78.1 should not be used for reimbursement purposes as there are multiple codes below it that contain a greater level of detail.
The 2023 edition of ICD-10-CM X78.1 became effective on October 1, 2022.
This is the American ICD-10-CM version of X78.1 - other international versions of ICD-10 X78.1 may differ.

ICD-10-CM Coding Rules

X78.1 describes the circumstance causing an injury, not the nature of the injury.

The following code(s) above X78.1 contain annotation back-references

Annotation Back-References

In this context, annotation back-references refer to codes that contain:

Applicable To annotations, or
Code Also annotations, or
Code First annotations, or
Excludes1 annotations, or
Excludes2 annotations, or
Includes annotations, or
Note annotations, or
Use Additional annotations

that may be applicable to X78.1:

V00-Y99
2023 ICD-10-CM Range V00-Y99
External causes of morbidity
Note
- This chapter permits the classification of environmental events and circumstances as the cause of injury, and other adverse effects. Where a code from this section is applicable, it is intended that it shall be used secondary to a code from another chapter of the Classification indicating the nature of the condition. Most often, the condition will be classifiable to Chapter 19, Injury, poisoning and certain other consequences of external causes (S00-T88). Other conditions that may be stated to be due to external causes are classified in Chapters I to XVIII. For these conditions, codes from Chapter 20 should be used to provide additional information as to the cause of the condition.
External causes of morbidity
X71-X83
2023 ICD-10-CM Range X71-X83
Intentional self-harm
Applicable To
- Purposely self-inflicted injury
- Suicide (attempted)
Intentional self-harm

Code History

2016 (effective 10/1/2015): New code (first year of non-draft ICD-10-CM)
2017 (effective 10/1/2016): No change
2018 (effective 10/1/2017): No change
2019 (effective 10/1/2018): No change
2020 (effective 10/1/2019): No change
2021 (effective 10/1/2020): No change
2022 (effective 10/1/2021): No change
2023 (effective 10/1/2022): No change

External Cause Index entries containing back-references to X78.1:

Contact (accidental)
- with
  - knife W26.0
    ICD-10-CM Diagnosis Code W26.0
    Contact with knife
    2016 2017 2018 2019 2020 2021 2022 2023 Non-Billable/Non-Specific Code
    Type 1 Excludes
    contact with electric knife (W29.1)
    - suicide X78.1 (attempt)
Suicide, suicidal (attempted) (by) X83.8
ICD-10-CM Diagnosis Code X83.8
Intentional self-harm by other specified means
- cutting or piercing instrument X78.9
  ICD-10-CM Diagnosis Code X78.9
  Intentional self-harm by unspecified sharp object
  2016 2017 2018 2019 2020 2021 2022 2023 Non-Billable/Non-Specific Code
  - knife X78.1

ICD-10-CM Codes Adjacent To X78.1

X77.8XXS …… sequela

X77.9 Intentional self-harm by unspecified hot objects

X77.9XXA …… initial encounter

X77.9XXD …… subsequent encounter

X77.9XXS …… sequela

X78 Intentional self-harm by sharp object

X78.0 Intentional self-harm by sharp glass

X78.0XXA …… initial encounter

X78.0XXD …… subsequent encounter

X78.0XXS …… sequela

X78.1 Intentional self-harm by knife

X78.1XXA …… initial encounter

X78.1XXD …… subsequent encounter

X78.1XXS …… sequela

X78.2 Intentional self-harm by sword or dagger

X78.2XXA …… initial encounter

X78.2XXD …… subsequent encounter

X78.2XXS …… sequela

X78.8 Intentional self-harm by other sharp object

X78.8XXA …… initial encounter

X78.8XXD …… subsequent encounter

Reimbursement claims with a date of service on or after October 1, 2015 require the use of ICD-10-CM codes.

2023 ICD-10-CM Diagnosis Code X78.1

Intentional self-harm by knife

External causes of morbidity

Intentional self-harm

Contact with knife

Intentional self-harm by other specified means

Intentional self-harm by unspecified sharp object