Skip to content
Dx

ICD-10-CM 2027 diagnosis code

W13.3XXAFall through floor, initial encounter

✓ Billable / specificRequires 7th character

W13.3XXA is a valid, billable ICD-10-CM code for fall through floor, initial encounter. 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 W13.3XXA

W13.3XXA is the ICD-10-CM diagnosis code for fall through floor, initial encounter. It belongs to category W13 (fall from, out of or through building or structure), 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 "A" means initial encounter: use it while the patient is receiving active treatment for the 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 E882 (accidental fall from or out of building or other structure).

7th character

Ainitial encounter

Other encounter types for W13.3:

Notes that apply from higher levels

Instructions written at a parent level also apply to W13.3XXA.

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

ICD-9-CM equivalent

Converter →
  • E882Accidental fall from or out of building or other structureapproximate

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 W13.3XXA

Is W13.3XXA billable?

Yes. W13.3XXA is a billable/specific ICD-10-CM code valid for FY2027 (October 1, 2026 – September 30, 2027).

What does the "A" at the end of W13.3XXA mean?

It is the 7th character for initial encounter. Per the official guidelines, use it while the patient is receiving active treatment for the condition.

Can W13.3XXA be used as a principal diagnosis?

Yes. The Medicare Code Editor doesn't restrict W13.3XXA as a principal diagnosis.

Is W13.3XXA a CC or MCC?

No. W13.3XXA is neither a CC nor an MCC under MS-DRG v44.0.

What is the ICD-9 code for W13.3XXA?

The CMS General Equivalence Mappings map W13.3XXA to ICD-9-CM E882.