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W73

W73: Other specified cause of accidental non-transport drowning and submersion

Non-billable headerICD-10-CM

W73 is a non-billable header ICD-10-CM code for other specified cause of accidental non-transport drowning and submersion. It cannot be billed on its own: choose one of the more specific child codes below. This code also requires a 7th character before it is complete.

This code requires a 7th character

The appropriate 7th character is to be added to code W73

A
initial encounter
D
subsequent encounter
S
sequela

Excludes1: never code together

These conditions cannot occur together. Billing both on the same encounter is a denial.

Inclusion terms

Alternative wordings a physician may use in the chart for this same code.

  • Accidental drowning and submersion while in quenching tank
  • Accidental drowning and submersion while in reservoir

Other codes that can never be billed with W73

Their own Excludes1 notes name this code, so the conflict is not listed above.

  • W16.311Fall into other water striking water surface causing drowning and submersion
  • W16.311AFall into other water striking water surface causing drowning and submersion, initial encounter
  • W16.311DFall into other water striking water surface causing drowning and submersion, subsequent encounter
  • W16.311SFall into other water striking water surface causing drowning and submersion, sequela
  • W16.321Fall into other water striking bottom causing drowning and submersion
  • W16.321AFall into other water striking bottom causing drowning and submersion, initial encounter
  • W16.321DFall into other water striking bottom causing drowning and submersion, subsequent encounter
  • W16.321SFall into other water striking bottom causing drowning and submersion, sequela

Risk adjustment

No CMS-HCC V28 category: this code does not change a RAF score.

Alphabetic index entries that lead here

  • Drowning›in›specified place NEC

Code history

Unchanged in every release from FY2024 to FY2027.

Code to one of these instead W73

3 child codes. Green means billable.

ICD-10-CMFY2027· effective October 1, 2026

Loaded directly from the CMS/NCHS ICD-10-CM public-domain release: see data sources and our editorial policy. If this page disagrees with the CMS tabular list, this page is wrong. Reference information for professional coders; not medical or billing advice.