Y21 is a non-billable/non-specific diagnosis code from the 2025 ICD-10-CM used to classify the following condition: Drowning and submersion, undetermined intent.
Seventh character note
The appropriate 7th character is to be added to each code from category Y21
Seventh character extensions
A: initial encounter
D: subsequent encounter
S: sequela
Codes
Y21.0
Drowning and submersion while in bathtub, undetermined intent
Y21.1
Drowning and submersion after fall into bathtub, undetermined intent
Y21.2
Drowning and submersion while in swimming pool, undetermined intent
Y21.3
Drowning and submersion after fall into swimming pool, undetermined intent
Y21.4
Drowning and submersion in natural water, undetermined intent
Y21.8
Other drowning and submersion, undetermined intent
Y21.9
Unspecified drowning and submersion, undetermined intent
Versions
2025
No changes
2024
No changes
2023
No changes
2022
No changes
2021
No changes
2020
No changes
2019
No changes
2018
No changes
2017
No changes
2016
New code