I08.1

Billable
ChapterI00–I99
Ranksubcategory
Official Description

Rheumatic disorders of both mitral and tricuspid valves

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 NotesView I08 Notes

Clinical Hierarchy

CH9Diseases of the circulatory system (I00-I99)
I05-I09Chronic rheumatic heart diseases (I05-I09)
I08Multiple valve diseases
I08.1Rheumatic disorders of both mitral and tricuspid valves

Applicable Ancestor Context

The following parent sections contain instructions or notes that apply to I08.1:

categoryI08
Multiple 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 I08.1. Use them as entry terms for search, then confirm final coding instructions in the Tabular List and notes above.

6 raw paths
Endocarditis (chronic) (marantic) (nonbacterial) (thrombotic) (valvular)2 unique routes
mitral (chronic) (double) (fibroid) (heart) (inactive) (valve) (with chorea)
with
tricuspid (valve) disease→I08.1
tricuspid (chronic) (heart) (inactive) (rheumatic) (valve) (with chorea)
with
mitral (valve) disease→I08.1
Insufficiency, insufficient3 unique routes
mitral (valve)(2 variants)
rheumatic
with
tricuspid (valve) disease→I08.1
with
tricuspid (valve) disease→I08.1
tricuspid (valve) (rheumatic)
with
mitral (valve) disease→I08.1
Stenosis, stenotic (cicatricial)1 unique routes
tricuspid (valve)
with
mitral (valve) disease→I08.1

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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