I46 ICD-10-CM Code: Cardiac arrest
A clear reference for the official code description, hierarchy, and related coding information from the FY 2027 U.S. release.
Code definition
Official description
I46Cardiac arrest
ICD-10-CM diagnosis code · United States clinical modification
Classification
Where I46 sits
- 1
Chapter 9
Diseases of the circulatory system (I00-I99)
- 2
Section
Other forms of heart disease (I30-I5A)
- 3
Category I46
Cardiac arrest
- 4
Code I46
Cardiac arrest
More specific choices
Codes under I46
I46 is a non-billable category. Choose the child code that best matches the documented diagnosis.
Documentation details
Notes for this code
Inclusion terms
No inclusion terms are listed for I46.
Code first
No “code first” instruction is listed for I46.
Use additional code
No “use additional code” instruction is listed for I46.
Excludes1
Conditions that should not be reported together with this code.
No Excludes1 note is listed for I46.
Excludes2
Conditions not included here that may be reported separately when present.
- cardiogenic shock (R57.0)
Transparency
Source and release
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.
Review the CDC/NCHS ICD-10-CM sourceCode-specific guidance
Frequently asked questions
What does ICD-10-CM code I46 mean?
I46 is the FY 2027 U.S. ICD-10-CM code for “Cardiac arrest.”
Is I46 a billable or specific ICD-10-CM code?
No. I46 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 I46 located in ICD-10-CM?
I46 is listed in Chapter 9, Diseases of the circulatory system (I00-I99), within Other forms of heart disease (I30-I5A) (I30–I5A), under category I46, Cardiac arrest.
What coding notes are listed for I46?
No inclusion terms are listed for I46 in this reference record. No code-first instruction is listed. No Excludes1 note is listed. Excludes2 notes: cardiogenic shock (R57.0).
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