I20.9 ICD-10-CM Code: Angina pectoris, unspecified
A clear reference for the official code description, hierarchy, and related coding information from the FY 2027 U.S. release.
Code definition
Official description
I20.9Angina pectoris, unspecified
ICD-10-CM diagnosis code · United States clinical modification
Classification
Where I20.9 sits
- 1
Chapter 9
Diseases of the circulatory system (I00-I99)
- 2
Section
Ischemic heart diseases (I20-I25)
- 3
Category I20
Angina pectoris
- 4
Code I20.9
Angina pectoris, unspecified
Documentation details
Notes for this code
Inclusion terms
- Angina NOS
- Anginal syndrome
- Cardiac angina
- Ischemic chest pain
Code first
No “code first” instruction is listed for I20.9.
Use additional code
No “use additional code” instruction is listed for I20.9.
Excludes1
Conditions that should not be reported together with this code.
No Excludes1 note is listed for I20.9.
Excludes2
Conditions not included here that may be reported separately when present.
No Excludes2 note is listed for I20.9.
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 I20.9 mean?
I20.9 is the FY 2027 U.S. ICD-10-CM code for “Angina pectoris, unspecified.”
Is I20.9 a billable or specific ICD-10-CM code?
Yes. In the FY 2027 reference data used on this page, I20.9 has no child codes and is presented as a billable/specific code. Always confirm the active code set and payer requirements before use.
Where is I20.9 located in ICD-10-CM?
I20.9 is listed in Chapter 9, Diseases of the circulatory system (I00-I99), within Ischemic heart diseases (I20-I25) (I20–I25), under category I20, Angina pectoris.
What coding notes are listed for I20.9?
Its listed inclusion terms are Angina NOS; Anginal syndrome; Cardiac angina; Ischemic chest pain. No code-first instruction is listed. No Excludes1 note is listed. No Excludes2 note is listed.
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