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ICD-10-CM 2027 diagnosis code

W54.1XXSStruck by dog, sequela

✓ Billable / specificPOA exemptRequires 7th character

W54.1XXS is a valid, billable ICD-10-CM code for struck by dog, 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 W54.1XXS

W54.1XXS is the ICD-10-CM diagnosis code for struck by dog, sequela. It belongs to category W54 (contact with dog), block W50-W64 (exposure to animate mechanical forces) 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 is exempt from present-on-admission (POA) reporting, so no POA indicator is required.

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 E929.5 (late effects of accident due to natural and environmental factors).

7th character

Ssequela

Other encounter types for W54.1:

Notes that apply from higher levels

Instructions written at a parent level also apply to W54.1XXS.

› From W54 Contact with dog
Includes
  • contact with saliva, feces or urine of dog

Broader instructions also apply from W50-W64 Exposure to animate mechanical forces and Chapter 20: External causes of morbidity.

ICD-9-CM equivalent

Converter →
  • E929.5Late effects of accident due to natural and environmental factorsapproximate

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 W54.1XXS

Is W54.1XXS billable?

Yes. W54.1XXS 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 W54.1XXS 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 W54.1XXS be used as a principal diagnosis?

Yes. The Medicare Code Editor doesn't restrict W54.1XXS as a principal diagnosis.

Is W54.1XXS a CC or MCC?

No. W54.1XXS is neither a CC nor an MCC under MS-DRG v44.0.

What is the ICD-9 code for W54.1XXS?

The CMS General Equivalence Mappings map W54.1XXS to ICD-9-CM E929.5.