ICD-10-CM 2027 diagnosis code
W17.0XXAFall into well, initial encounter
W17.0XXA is a valid, billable ICD-10-CM code for fall into well, 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 W17.0XXA
W17.0XXA is the ICD-10-CM diagnosis code for fall into well, initial encounter. It belongs to category W17 (other fall from one level to another), 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 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 E883.1 (accidental fall into well).
7th character
Ainitial encounter
Other encounter types for W17.0:
Notes that apply from higher levels
Instructions written at a parent level also apply to W17.0XXA.
Broader instructions also apply from W00-W19 Slipping, tripping, stumbling and falls and Chapter 20: External causes of morbidity.
ICD-9-CM equivalent
Converter →- E883.1Accidental fall into wellapproximate
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 W17.0XXA
Is W17.0XXA billable?
- Yes. W17.0XXA 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 W17.0XXA 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 W17.0XXA be used as a principal diagnosis?
- Yes. The Medicare Code Editor doesn't restrict W17.0XXA as a principal diagnosis.
Is W17.0XXA a CC or MCC?
- No. W17.0XXA is neither a CC nor an MCC under MS-DRG v44.0.