I20.8

Non-Billable
ChapterI00–I99
Ranksubcategory
Official Description

Other forms of angina pectoris

Metadata & Insights
  • 2026 ICD-10-CM Edition - Effective October 1, 2025.
  • Non-billable category (requires more specific sub-code).
  • Chapter 9: Diseases of the Circulatory System (I00-I99).

Instructional Notes

Use Additional Code
  • code(s) for symptoms associated with angina equivalent
General instructions are available for the parent sections:

Clinical Hierarchy

CH9Diseases of the circulatory system (I00-I99)
I20-I25Ischemic heart diseases (I20-I25)
I20Angina pectoris
I20.8Other forms of angina pectoris
I20.81Angina pectoris with coronary microvascular dysfunction
I20.89Other forms of angina pectoris

Applicable Ancestor Context

The following parent sections contain instructions or notes that apply to I20.8:

categoryI20
Angina pectoris
View context instructions
blockI20-I25
Ischemic heart diseases (I20-I25)
View context instructions
chapterCH9
Diseases of the circulatory system (I00-I99)
View context instructions

Alphabetic Index Mentions

These are Diagnosis Index lookup paths that route to I20.8. Use them as entry terms for search, then confirm final coding instructions in the Tabular List and notes above.

16 raw paths

MS-DRG Classification

2026

No direct MS-DRG triggers identified.

Cross Reference

Find Procedures (ICD-10-PCS)

Find surgical and procedural codes related to Other forms of angina pectoris.

Search PCS Codes