ICD-10-CM › V00-Y99 › Y21-Y33 › Y31 Falling, lying or running before... › Y31.XXXD

Valid for claims with a date of service in the current code year.

Valid FY2016 onwards.

What has happened to this code

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 Y31 Falling, lying or running before or into moving object, undetermined intent

Seventh character required

• The appropriate 7th character is to be added to code Y31

Inherited from the Y21-Y33 section Event of undetermined intent (Y21-Y33)

Also known as

• Undetermined intent is only for use when there is specific documentation in the record that the intent of the injury cannot be determined. If no such documentation is present, code to accidental (unintentional)

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.

• Undetermined intent > falling, lying or running before moving object
• Undetermined intent > lying, falling or running before moving object
• Undetermined intent > running, falling or lying before moving object
• Jumped, jumping > before moving object NEC > undetermined whether accidental or intentional
• Lying before train, vehicle or other moving object > undetermined whether accidental or intentional

Codes in the same group

Code	Description	Status
Y31.XXXA	Falling, lying or running before or into moving object, undetermined intent, initial encounter	Valid
Y31.XXXS	Falling, lying or running before or into moving object, undetermined intent, sequela	Valid