ICD-10-CM 2027 diagnosis code
Y31.XXXSFalling, lying or running before or into moving object, undetermined intent, sequela
Y31.XXXS is a valid, billable ICD-10-CM code for falling, lying or running before or into moving object, undetermined intent, sequela. It can be reported on claims for dates of service from October 1, 2026 – September 30, 2027.Short description: Fall/lying/running bef/into moving obj, undet intent, sqla
Code unchanged since ICD-10-CM took effect on October 1, 2015. Source: official FY2027 ICD-10-CM release from CDC/NCHS and CMS. Page updated September 29, 2026. About our data
About Y31.XXXS
Y31.XXXS is the ICD-10-CM diagnosis code for falling, lying or running before or into moving object, undetermined intent, sequela. It belongs to category Y31 (falling, lying or running before or into moving object, undetermined intent), block Y21-Y33 (event of undetermined intent) and chapter 20 (external causes of morbidity). It is billable, so it can be reported on its own for dates of service from October 1, 2026 through September 30, 2027.
The 7th character "S" means sequela: use it for complications or conditions that arise as a direct result of the original condition.
It is not a CC or MCC, so as a secondary diagnosis it doesn't change the MS-DRG severity level.
It has been part of ICD-10-CM since the code set took effect on October 1, 2015 and hasn't changed since.
Before ICD-10, this condition was coded in ICD-9-CM as E929.8 (late effects of other accidents).
7th character
Ssequela
Other encounter types for Y31:
Notes that apply from higher levels
Instructions written at a parent level also apply to Y31.XXXS.
Broader instructions also apply from Y21-Y33 Event of undetermined intent and Chapter 20: External causes of morbidity.
ICD-9-CM equivalent
Converter →- E929.8Late effects of other accidentsapproximate
From the CMS 2018 General Equivalence Mappings (GEMs), the final GEMs release.
Code history
- 2016
- 2017
- 2018
- 2019
- 2020
- 2021
- 2022
- 2023
- 2024
- 2025
- 2026
- 2027
- FY2016 (effective 10/1/2015): Added (first year of ICD-10-CM)
- No changes since FY2016.
Common questions about Y31.XXXS
Is Y31.XXXS billable?
- Yes. Y31.XXXS is a billable/specific ICD-10-CM code valid for FY2027 (October 1, 2026 – September 30, 2027).
What does the "S" at the end of Y31.XXXS mean?
- It is the 7th character for sequela. Per the official guidelines, use it for complications or conditions that arise as a direct result of the original condition.
Can Y31.XXXS be used as a principal diagnosis?
- Yes. The Medicare Code Editor doesn't restrict Y31.XXXS as a principal diagnosis.
Is Y31.XXXS a CC or MCC?
- No. Y31.XXXS is neither a CC nor an MCC under MS-DRG v44.0.
What is the ICD-9 code for Y31.XXXS?
- The CMS General Equivalence Mappings map Y31.XXXS to ICD-9-CM E929.8.