W16.031

⚠ Non-billable (Header)

Fall into swimming pool striking wall causing drowning and submersion

External causes of morbidity (V00-Y99)

⚠️ This is a category header code — not billable. Use a more specific child code below.

Check This Code

❌ Excludes1

direct

These codes are mutually exclusive. Never code them together.

• drowning and submersion while in swimming pool without fall (W67)

❌ Excludes1

inherited

Rules inherited from parent codes in the hierarchy.

W16.0

• fall into empty swimming pool (W17.3)

W16

• accidental non-watercraft drowning and submersion not involving fall (W65-W74)
• effects of air pressure from diving (W94.-)
• fall into water from watercraft (V90-V94)
• hitting an object or against bottom when falling from watercraft (V94.0)

⚠️ Excludes2

inherited

Rules inherited from parent codes.

W16

• striking or hitting diving board (W21.4)

Child Codes (3)

W16.031AFall into swimming pool striking wall causing drowning and submersion, initial encounter✓ Billable W16.031DFall into swimming pool striking wall causing drowning and submersion, subsequent encounter✓ Billable W16.031SFall into swimming pool striking wall causing drowning and submersion, sequela✓ Billable

Clinical Description

ICD-10-CM code W16.031 represents fall into swimming pool striking wall causing drowning and submersion. This code falls under the External causes of morbidity (V00-Y99) classification. It is a non-billable category header code. A more specific child code from the list below must be used for billing and reimbursement purposes.

This is a 7-character code at the 6th level of specificity. There are 3 more specific child codes under W16.031. Coders should note that W16.031 has 6 Excludes1 restriction(s) — codes that cannot be reported together on the same claim.

Frequently Asked Questions

What is ICD-10 code W16.031?

ICD-10-CM code W16.031 is "Fall into swimming pool striking wall causing drowning and submersion". It belongs to the category: External causes of morbidity (V00-Y99).

Is W16.031 a billable ICD-10 code?

No, W16.031 is a non-billable header code. A more specific child code must be used for billing.

What codes are excluded with W16.031?

W16.031 has 6 Excludes1 rule(s). These codes are mutually exclusive and cannot be coded together on the same claim.

Can W16.031 be coded with other codes?

W16.031 has 1 Excludes2 note(s). These conditions can be coded together if both are documented in the patient record.

Related Codes in W16.03

Other codes in the same category that may be relevant for differential coding:

W16.032Fall into swimming pool striking wall causing other injury

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Code Information

CodeW16.031

BillableNo — Header code

ParentW16.03

CategoryExternal causes of morbidity (V00-Y99)

Excludes16 rule(s)

Excludes21 note(s)

Child codes3

Data Source

CMS ICD-10-CM 2026 Tabular List

Updated October 1, 2025 (FY2026)