W16.521

Jumping or diving into swimming pool striking bottom causing drowning and submersion

Not billable — category only FY2026 2025-10-01 → 2026-09-30

Exclusions 6 never code together

W16code

Excludes1

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

Excludes2

Excludes1

drowning and submersion while in swimming pool without jumping or diving (W67)W67

Excludes1 — never code together. The excluded condition and this one are mutually exclusive.

Excludes2 — not included here, but the patient may have both. Code both when documented.

7th character 3

A initial encounter

D subsequent encounter

S sequela

Instructional notes 1

Notes

This chapter permits the classification of environmental events and circumstances as the cause of injury, and other adverse effects. Where a code from this section is applicable, it is intended that it shall be used secondary to a code from another chapter of the Classification indicating the nature of the condition. Most often, the condition will be classifiable to Chapter 19, Injury, poisoning and certain other consequences of external causes (S00-T88). Other conditions that may be stated to be due to external causes are classified in Chapters I to XVIII. For these conditions, codes from Chapter 20 should be used to provide additional information as to the cause of the condition.S00-T88

Index entries leading here 3

Drowning (accidental) W74
- following
  - jump or dive
    - into
      - swimming-pool W16.511
        
        striking
        
        bottom W16.521
- in
  - swimming-pool W67
    - following
      - dive or jump W16.511
        
        striking
        
        bottom W16.521
Jumped, jumping
- into water W16.92
  - in
    - swimming pool W16.512
      - striking
        
        bottom W16.522
        
        causing drowning W16.521
Striking against
- bottom when
  - diving or jumping into water (in) W16.822
    - swimming pool W16.522
      - causing drowning W16.521

Alongside this code 1 same parent — W16.52

Subordinate codes 3

Additional references

AHA Coding Clinic® Licence required

Official coding advice for this code. Published by the American Hospital Association. Not included in this installation.

Maps to no condition category in any loaded model.

Presence is a property of the code. Untick a model to hide it everywhere.

Present FY2024–FY2027.