Y64
⚠ Non-billable
Contaminated medical or biological substances
ICD-10-CM · FY2026 · External Causes of Morbidity
Code
Y64
System
ICD-10-CM
Billable
No — use specific code
Effective
FY2026
Chapter
External Causes of Morbidity
Source
CMS / CDC NCHS
⚠ Verify before billing. Confirm against the current CMS/NCHS ICD-10-CM files and your payer's rules before claims submission.
Frequently asked questions
What is ICD-10 code Y64?
ICD-10-CM code Y64 represents Contaminated medical or biological substances. It is a non-billable header code requiring a more specific subcategory in the External Causes of Morbidity chapter, effective October 1, 2025 – September 30, 2026.
Is Y64 billable?
No. Y64 is a non-billable header. Select a more specific subcategory for claims submission.
What chapter is Y64 in?
Y64 belongs to the External Causes of Morbidity chapter (V00–Y99) of ICD-10-CM.
Related codes in the Y64 category
Y64.0
Contaminated medical or biological substance, transfused or infused
Billable
Y64.1
Contaminated medical or biological substance, injected or used for immunization
Billable
Y64.8
Contaminated medical or biological substance administered by other means
Billable
Y64.9
Contaminated medical or biological substance administered by unspecified means
Billable
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