Is Y21 a billable code?
No. Y21 is a header code that groups 0 more specific codes. Use one of the billable codes listed on this page instead.
ICD-10-CM FY2027 diagnosis code
Y21: Drowning and submersion, undetermined intent
Header code: not billableValid for dates of service October 1, 2026 to September 30, 2027
Y21 groups related diagnoses under drowning and submersion, undetermined intent. It cannot be used on a claim by itself. Choose the billable code below that matches the patient's record.
Y21 questions
What does Y21 mean?
Y21 is the ICD-10-CM code for Drowning and submersion, undetermined intent. It is in chapter 21, External causes of morbidity (V00-Y99).
Code titles come from the official ICD-10-CM files published by the CDC National Center for Health Statistics. Always check payer rules and the clinical record before billing.