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I15 ⚠ Non-billable

Secondary hypertension

ICD-10-CM · FY2026 · Diseases of the Circulatory System

Code
I15
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 I15?
ICD-10-CM code I15 represents Secondary hypertension. 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 I15 billable?
No. I15 is a non-billable header. Select a more specific subcategory for claims submission.
What chapter is I15 in?
I15 belongs to the Diseases of the Circulatory System chapter (I00–I99) of ICD-10-CM.

Related codes in the I15 category

I15.0 Renovascular hypertension Billable I15.1 Hypertension secondary to other renal disorders Billable I15.2 Hypertension secondary to endocrine disorders Billable I15.8 Other secondary hypertension Billable I15.9 Secondary hypertension, unspecified Billable

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