I20.2 – Refractory angina pectoris

ICD-10-CM 2027 diagnosis code · Ischemic heart diseases

Billable code

ICD-10-CM code I20.2

Code: I20.2 (claims format: I202)
Description: Refractory angina pectoris
Billable: Yes – valid for HIPAA-covered transactions
Valid for: Dates of service October 1, 2026 – September 30, 2027 (FY2027)
Chapter: 9. Diseases of the circulatory system (I00-I99)
Block: I20-I25 Ischemic heart diseases
Parent codes: I20

Notes inherited from parent codes

Instructional notes at a category or block level apply to every code below it.

I20 – Angina pectoris

Excludes1 (not coded here):

angina pectoris with atherosclerotic heart disease of native coronary arteries (I25.1-)
atherosclerosis of coronary artery bypass graft(s) and coronary artery of transplanted heart with angina pectoris (I25.7-)
postinfarction angina (I23.7)

Use additional code:

code to identify:
exposure to environmental tobacco smoke (Z77.22)
history of tobacco dependence (Z87.891)
occupational exposure to environmental tobacco smoke (Z57.31)
tobacco dependence (F17.-)
tobacco use (Z72.0)

Block I20-I25

Code also:

the presence of hypertension (I10-I1A)

Index terms for I20.2

Entries in the ICD-10-CM alphabetic index that lead to this code:

Angina, refractory

Related codes in I20

I20.0 – Unstable anginaBillable
I20.1 – Angina pectoris with documented spasmBillable
I20.8 – Other forms of angina pectorisHeader
I20.9 – Angina pectoris, unspecifiedBillable

Frequently asked questions

What is ICD-10 code I20.2?

I20.2 is the ICD-10-CM code for refractory angina pectoris, in the block I20-I25 (Ischemic heart diseases).

Is I20.2 a billable code?

Yes. I20.2 is a billable/specific code that can be used to indicate a diagnosis for reimbursement purposes.

What category does I20.2 belong to?

It belongs to category I20 – Angina pectoris.

Source: CDC/NCHS ICD-10-CM FY2027 code files, tabular list and index. Reference only – code assignment must follow the official ICD-10-CM guidelines and documentation in the medical record.