W16.621Header code — not billable

Jumping or diving into natural body of water striking bottom causing drowning and submersion

Short description: Jump/div into natural body of water strk bottom cause drown

Chapter
20. External causes of morbidity
Category
W16
Effective date
October 1, 2026

Related codes in category W16

Frequently asked questions

What is ICD-10 code W16.621?

W16.621 is an ICD-10-CM diagnosis code for Jumping or diving into natural body of water striking bottom causing drowning and submersion.

Is W16.621 a billable code?

No. W16.621 is a category/header code, not billable on its own — use one of its more specific child codes instead.

What ICD-10-CM chapter is W16.621 in?

W16.621 falls under Chapter 20: External causes of morbidity.

When did W16.621 become effective?

W16.621 has been effective since October 1, 2026, per the CMS/CDC ICD-10-CM annual release.

What other codes are related to W16.621?

W16.621 belongs to category W16, which includes 12 other codes — see the related codes list on this page.

ICD-10-CM data maintained by CDC/CMS (public domain). Always verify codes with authoritative sources before making coding or billing decisions.