W73
⚠ Non-billable
Other specified cause of accidental non-transport drowning and submersion
ICD-10-CM · FY2026 · External Causes of Morbidity
Code
W73
System
ICD-10-CM
Billable
No — use specific code
Effective
FY2026
Chapter
External Causes of Morbidity
Source
CMS / CDC NCHS
⚠ Verify before billing. Confirm against the current CMS/NCHS ICD-10-CM files and your payer's rules before claims submission.
Official coding notes
From CMS's ICD-10-CM Tabular List.
Also known as
- Accidental drowning and submersion while in quenching tank
- Accidental drowning and submersion while in reservoir
Excludes1 — never code together
- accidental drowning and submersion due to fall into other water (W16.311, W16.321, W16.331)
7th character
- The appropriate 7th character is to be added to code W73
Frequently asked questions
What is ICD-10 code W73?
ICD-10-CM code W73 represents Other specified cause of accidental non-transport drowning and submersion. It is a non-billable header code requiring a more specific subcategory in the External Causes of Morbidity chapter, effective October 1, 2025 – September 30, 2026.
Is W73 billable?
No. W73 is a non-billable header. Select a more specific subcategory for claims submission.
What chapter is W73 in?
W73 belongs to the External Causes of Morbidity chapter (V00–Y99) of ICD-10-CM.
Related codes in the W73 category
W73.XXXA
Other specified cause of accidental non-transport drowning and submersion, initial encounter
Billable
W73.XXXD
Other specified cause of accidental non-transport drowning and submersion, subsequent encounter
Billable
W73.XXXS
Other specified cause of accidental non-transport drowning and submersion, sequela
Billable
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