I16 ICD-10-CM Code: Hypertensive crisis
A clear reference for the official code description, hierarchy, and related coding information from the FY 2027 U.S. release.
Official description
I16Hypertensive crisis
ICD-10-CM diagnosis code · United States clinical modification
Where I16 sits
- 1
Chapter 9
Diseases of the circulatory system (I00-I99)
- 2
Section
Hypertensive diseases (I10-I1A)
- 3
Category I16
Hypertensive crisis
- 4
Code I16
Hypertensive crisis
Codes under I16
I16 is a non-billable category. Choose the child code that best matches the documented diagnosis.
Notes for this code
Inclusion terms
No inclusion terms are listed for I16.
Code first
No “code first” instruction is listed for I16.
Use additional code
No “use additional code” instruction is listed for I16.
Excludes1
Conditions that should not be reported together with this code.
No Excludes1 note is listed for I16.
Excludes2
Conditions not included here that may be reported separately when present.
No Excludes2 note is listed for I16.
Source and release
- Data release
- U.S. ICD-10-CM · FY 2027
- Effective date
- Oct 1, 2026
- Publisher
- Vero Scribe Inc.
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.
Frequently asked questions
What does ICD-10-CM code I16 mean?
I16 is the FY 2027 U.S. ICD-10-CM code for “Hypertensive crisis.”
Is I16 a billable or specific ICD-10-CM code?
No. I16 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 I16 located in ICD-10-CM?
I16 is listed in Chapter 9, Diseases of the circulatory system (I00-I99), within Hypertensive diseases (I10-I1A) (I10–I1A), under category I16, Hypertensive crisis.
What coding notes are listed for I16?
No inclusion terms are listed for I16 in this reference record. No code-first instruction is listed. No Excludes1 note is listed. No Excludes2 note is listed.