Y31Header code — not billable

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

Short description: Fall/lying/running bef/into moving object, undet intent

Chapter
20. External causes of morbidity
Category
Y31
Effective date
October 1, 2026

Related codes in category Y31

Y31.XXXAFall/lying/running bef/into moving obj, undet intent, initYesY31.XXXDFall/lying/running bef/into moving obj, undet intent, subsYesY31.XXXSFall/lying/running bef/into moving obj, undet intent, sqlaYes

Frequently asked questions

What is ICD-10 code Y31?

Y31 is an ICD-10-CM diagnosis code for Falling, lying or running before or into moving object, undetermined intent.

Is Y31 a billable code?

No. Y31 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 Y31 in?

Y31 falls under Chapter 20: External causes of morbidity.

When did Y31 become effective?

Y31 has been effective since October 1, 2026, per the CMS/CDC ICD-10-CM annual release.

What other codes are related to Y31?

Y31 belongs to category Y31, which includes 3 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.