Is W73.XXXD a billable ICD-10-CM code?

Yes. W73.XXXD is a billable, specific ICD-10-CM code and is valid for submission on a claim.

Where does W73.XXXD sit in the tabular list?

External causes of morbidity (V00-Y99), in the block Accidental non-transport drowning and submersion (W65-W74).

What cannot be coded together with W73.XXXD?

W73.XXXD carries Excludes1 notes, which means the conditions they list can never be coded together with it on the same encounter. Some are written on the categories above W73.XXXD (W73) and apply to it just the same.

W73.XXXD

W73.XXXD — Other specified cause of accidental non-transport drowning and submersion, subsequent encounter

Billable / specific codeICD-10-CMPOA exempt

W73.XXXD is a billable, specific ICD-10-CM code for other specified cause of accidental non-transport drowning and submersion, subsequent encounter. It is valid for submission on a claim.

7th character "D" — subsequent encounter

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.

accidental drowning and submersion due to fall into other water (W16.311, W16.321, W16.331)

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

Excludes1 inherited from the categories above W73.XXXD

These are not written on W73.XXXD, but they bind it: a note on a category applies to every code beneath it. Billing W73.XXXD with anything listed here is a denial.

Written on W73 — Other specified cause of accidental non-transport drowning and submersion

accidental drowning and submersion due to fall into other water (W16.311, W16.321, W16.331)

Risk adjustment

W73.XXXD does not map to an HCC and does not risk-adjust under CMS-HCC V28. That is normal — most ICD-10 codes do not. It still needs to be coded correctly; it just will not move a RAF score.

Code history

W73.XXXD has not changed since FY2024 — no addition, revision or deletion across the three most recent ICD-10-CM releases.

Related codes at this level

Codes that share W73. If W73.XXXD is not quite right, the correct code is usually one of these.

Questions about W73.XXXD

Is W73.XXXD a billable ICD-10-CM code?: Yes. W73.XXXD is a billable, specific ICD-10-CM code and is valid for submission on a claim.
Where does W73.XXXD sit in the tabular list?: External causes of morbidity (V00-Y99), in the block Accidental non-transport drowning and submersion (W65-W74).
What cannot be coded together with W73.XXXD?: W73.XXXD carries Excludes1 notes, which means the conditions they list can never be coded together with it on the same encounter. Some are written on the categories above W73.XXXD (W73) and apply to it just the same.