I06.9

Billable

ChapterI00–I99

Ranksubcategory

Official Description

Rheumatic aortic valve disease, unspecified

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).

Instructional Notes

Includes

Rheumatic aortic (valve) disease NOS

General instructions are available for the parent sections:

View CH9 Notes View I06 Notes

Clinical Hierarchy

CH9Diseases of the circulatory system (I00-I99)

I05-I09Chronic rheumatic heart diseases (I05-I09)

I06Rheumatic aortic valve diseases

I06.9Rheumatic aortic valve disease, unspecified

Applicable Ancestor Context

The following parent sections contain instructions or notes that apply to I06.9:

categoryI06

Rheumatic aortic valve diseases

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 I06.9. Use them as entry terms for search, then confirm final coding instructions in the Tabular List and notes above.

4 raw paths

Disease, diseased1 unique routes

aortic (heart) (valve)

rheumatic→I06.9

Endocarditis (chronic) (marantic) (nonbacterial) (thrombotic) (valvular)2 unique routes

aortic (heart) (nonrheumatic) (valve)(2 variants)

rheumatic→I06.9

with

rheumatic fever (conditions in I00)

inactive or quiescent (with chorea)→I06.9

Fever (inanition) (of unknown origin) (persistent) (with chills) (with rigor)1 unique routes

rheumatic (active) (acute) (chronic) (subacute)

inactive or quiescent with

endocarditis

aortic (valve)→I06.9

MS-DRG Classification

2026 v43.1

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

DRG 306

Cardiac Congenital and Valvular Disorders with MCC

DRG 307

Cardiac Congenital and Valvular Disorders without MCC

Cross Reference

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