I16
⚠ Non-billable
Hypertensive crisis
ICD-10-CM · FY2026 · Diseases of the Circulatory System
Code
I16
System
ICD-10-CM
Billable
No — use specific code
Effective
FY2026
Chapter
Diseases of the Circulatory System
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 I16?
ICD-10-CM code I16 represents Hypertensive crisis. It is a non-billable header code requiring a more specific subcategory in the Diseases of the Circulatory System chapter, effective October 1, 2025 – September 30, 2026.
Is I16 billable?
No. I16 is a non-billable header. Select a more specific subcategory for claims submission.
What chapter is I16 in?
I16 belongs to the Diseases of the Circulatory System chapter (I00–I99) of ICD-10-CM.
Related codes in the I16 category
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