Y21 ICD-10-CM Code: Drowning and submersion, undetermined intent
A clear reference for the official code description, hierarchy, and related coding information from the FY 2027 U.S. release.
Code definition
Official description
Y21Drowning and submersion, undetermined intent
ICD-10-CM diagnosis code · United States clinical modification
Classification
Where Y21 sits
- 1
Chapter 20
External causes of morbidity (V00-Y99)
- 2
Section
Event of undetermined intent (Y21-Y33)
- 3
Category Y21
Drowning and submersion, undetermined intent
- 4
Code Y21
Drowning and submersion, undetermined intent
More specific choices
Codes under Y21
Y21 is a non-billable category. Choose the child code that best matches the documented diagnosis.
Y21.0Drowning and submersion while in bathtub, undetermined intent
Y21.1Drowning and submersion after fall into bathtub, undetermined intent
Y21.2Drowning and submersion while in swimming pool, undetermined intent
Y21.3Drowning and submersion after fall into swimming pool, undetermined intent
Y21.4Drowning and submersion in natural water, undetermined intent
Y21.8Other drowning and submersion, undetermined intent
Y21.9Unspecified drowning and submersion, undetermined intent
Documentation details
Notes for this code
Inclusion terms
No inclusion terms are listed for Y21.
Code first
No “code first” instruction is listed for Y21.
Use additional code
No “use additional code” instruction is listed for Y21.
Excludes1
Conditions that should not be reported together with this code.
No Excludes1 note is listed for Y21.
Excludes2
Conditions not included here that may be reported separately when present.
No Excludes2 note is listed for Y21.
Transparency
Source and release
This reference is generated from Vero’s ICD-10-CM description, hierarchy, and code-note dataset. The visible content and structured data share that source.
Review the CDC/NCHS ICD-10-CM sourceCode-specific guidance
Frequently asked questions
What does ICD-10-CM code Y21 mean?
Y21 is the FY 2027 U.S. ICD-10-CM code for “Drowning and submersion, undetermined intent.”
Is Y21 a billable or specific ICD-10-CM code?
No. Y21 has more specific child codes in the FY 2027 reference data. Select the code that matches the documentation and confirm the active code set and payer requirements.
Where is Y21 located in ICD-10-CM?
Y21 is listed in Chapter 20, External causes of morbidity (V00-Y99), within Event of undetermined intent (Y21-Y33) (Y21–Y33), under category Y21, Drowning and submersion, undetermined intent.
What coding notes are listed for Y21?
No inclusion terms are listed for Y21 in this reference record. No code-first instruction is listed. No Excludes1 note is listed. No Excludes2 note is listed.
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