ICD-10-CM › V00-Y99 › X71-X83 › X78 Intentional self-harm by sharp object › X78.1

X78.1

Intentional self-harm by knife

Not billableICD-10-CM diagnosis code.

This code exists but cannot be submitted on its own. It groups the more specific codes beneath it.

A category header for its whole life, FY2016 onwards. It has never been valid for submission on its own.

Submit one of these 3 more specific codes instead:

  • X78.1XXA Intentional self-harm by knife, initial encounter
  • X78.1XXD Intentional self-harm by knife, subsequent encounter
  • X78.1XXS Intentional self-harm by knife, sequela

This code requires a seventh character. See the rule below.

What has happened to this code

Every change the publisher made, from 2014 to now. Entries marked draft are from the pre-implementation releases: ICD-10 took effect on 1 October 2015, so nothing before FY2016 was ever valid on a claim.

  1. FY2014 Added to the draft code set draft Intentional self-harm by knife

Official coding rules

Published by CDC for FY2027. A rule attached to a category binds every code beneath it, so the rules inherited from this code's ancestors are shown with the code they come from.

Inherited from X78 Intentional self-harm by sharp object

Seventh character required

  • The appropriate 7th character is to be added to each code from category X78

Inherited from the X71-X83 section Intentional self-harm (X71-X83)

Also known as

  • Purposely self-inflicted injury
  • Suicide (attempted)

How CDC's index refers to this code

Wording from the official alphabetic index. Much of it appears nowhere in the code description, which is why a search for the everyday phrase so often finds nothing.

Codes in the same group

CodeDescriptionStatus
X78.0 Intentional self-harm by sharp glass Not billable
X78.2 Intentional self-harm by sword or dagger Not billable
X78.8 Intentional self-harm by other sharp object Not billable
X78.9 Intentional self-harm by unspecified sharp object Not billable