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ICD-10-CM 2027 diagnosis code

W73Other specified cause of accidental non-transport drowning and submersion

Not billable — use a more specific code

W73 is a header code, so it can't be reported by itself. Choose one of the 3 more specific codes beneath it.Short description: Oth cause of accidental non-transport drown

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 W73

W73 is the ICD-10-CM diagnosis code for other specified cause of accidental non-transport drowning and submersion. It belongs to block W65-W74 (accidental non-transport drowning and submersion) and chapter 20 (external causes of morbidity). It is a header code, so it can't be reported by itself; one of its 3 subcodes must be used instead.

To report this condition, pick the subcode that matches the documentation: W73.XXXA (initial encounter), W73.XXXD (subsequent encounter) and W73.XXXS (sequela).

Don't report W73 together with the conditions in its Excludes1 note: accidental drowning and submersion due to fall into other water (W16.311, W16.321, W16.331).

It has been part of ICD-10-CM since the code set took effect on October 1, 2015 and hasn't changed since.

Specific codes under W73

Coding notes

Applicable toConditions and synonyms classified to this code
  • Accidental drowning and submersion while in quenching tank
  • Accidental drowning and submersion while in reservoir
Excludes1Not coded here — never report together with this code

Notes that apply from higher levels

Instructions written at a parent level also apply to W73.

Broader instructions also apply from W65-W74 Accidental non-transport drowning and submersion and Chapter 20: External causes of morbidity.

Alphabetic index entries

1 entries

Terms in the official ICD-10-CM index that lead to W73.

Codes whose notes reference W73

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 W73

Is W73 billable?

No. W73 is a header code. Report one of its more specific subcodes instead.