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ICD-10-CM 2027 diagnosis code

W00.1XXSFall from stairs and steps due to ice and snow, sequela

✓ Billable / specificRequires 7th character

W00.1XXS is a valid, billable ICD-10-CM code for fall from stairs and steps due to ice and snow, sequela. It can be reported on claims for dates of service from October 1, 2026 – September 30, 2027.

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 W00.1XXS

W00.1XXS is the ICD-10-CM diagnosis code for fall from stairs and steps due to ice and snow, sequela. It belongs to category W00 (fall due to ice and snow), block W00-W19 (slipping, tripping, stumbling and falls) 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 E929.3 (late effects of accidental fall).

7th character

Ssequela

Other encounter types for W00.1:

Notes that apply from higher levels

Instructions written at a parent level also apply to W00.1XXS.

› From W00 Fall due to ice and snow
Includes
  • pedestrian on foot falling (slipping) on ice and snow
Excludes1
  • fall on (from) ice and snow involving pedestrian conveyance (V00.-)
  • fall from stairs and steps not due to ice and snow (W10.-)

Broader instructions also apply from W00-W19 Slipping, tripping, stumbling and falls and Chapter 20: External causes of morbidity.

ICD-9-CM equivalent

Converter →
  • E929.3Late effects of accidental fallapproximate

From the CMS 2018 General Equivalence Mappings (GEMs), the final GEMs release.

Code history

  1. 2016
  2. 2017
  3. 2018
  4. 2019
  5. 2020
  6. 2021
  7. 2022
  8. 2023
  9. 2024
  10. 2025
  11. 2026
  12. 2027
  • FY2016 (effective 10/1/2015): Added (first year of ICD-10-CM)
  • No changes since FY2016.

Common questions about W00.1XXS

Is W00.1XXS billable?

Yes. W00.1XXS 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 W00.1XXS 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 W00.1XXS be used as a principal diagnosis?

Yes. The Medicare Code Editor doesn't restrict W00.1XXS as a principal diagnosis.

Is W00.1XXS a CC or MCC?

No. W00.1XXS is neither a CC nor an MCC under MS-DRG v44.0.

What is the ICD-9 code for W00.1XXS?

The CMS General Equivalence Mappings map W00.1XXS to ICD-9-CM E929.3.