I25.42

Billable

ChapterI00–I99

Ranksubcategory

Official Description

Coronary artery dissection

Metadata & Insights

•2026 ICD-10-CM Edition - Effective October 1, 2025.
•Billable/specific code (valid for reimbursement).
•Chapter 9: Diseases of the Circulatory System (I00-I99).

General instructions are available for the parent sections:

View CH9 Notes View I20-I25 Notes View I25 Notes

Clinical Hierarchy

CH9Diseases of the circulatory system (I00-I99)

I20-I25Ischemic heart diseases (I20-I25)

I25Chronic ischemic heart disease

I25.4Coronary artery aneurysm and dissection

I25.42Coronary artery dissection

Applicable Ancestor Context

The following parent sections contain instructions or notes that apply to I25.42:

categoryI25

Chronic ischemic heart disease

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 I25.42. Use them as entry terms for search, then confirm final coding instructions in the Tabular List and notes above.

1 raw paths

Dissection1 unique routes

artery

coronary→I25.42

MS-DRG Classification

2026 v43.1

This code is grouped within the following Diagnosis Related Group(s) for clinical reimbursement:

DRG 314

Other Circulatory System Diagnoses with MCC

DRG 315

Other Circulatory System Diagnoses with CC

DRG 316

Other Circulatory System Diagnoses without CC/MCC

Cross Reference

Find Procedures (ICD-10-PCS)

Find surgical and procedural codes related to Coronary artery dissection.

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