I08.1 Rheumatic disorders of both mitral and tricuspid valves

Billable ICD-10-CM code, FY2026.

Applies from I08 Multiple valve diseases

Includes

• multiple valve diseases specified as rheumatic or unspecified

Excludes1 (never code together)

• endocarditis, valve unspecified (I38)
• rheumatic valve disease NOS (I09.1)

Excludes2 (not included here)

• multiple valve disease specified as nonrheumatic (I34.-, I35.-, I36.-, I37.-, I38.-, Q22.-, Q23.-, Q24.8-)

MS-DRG index

Defines the logic of DRG(s) 306-307 in MDC 05.

Approximate ICD-9-CM (GEMs)

• 397.9 Rheumatic diseases of endocardium, valve unspecified (approximate)

Code annotations containing back-references to I08.1

Back-references to I08

• Type 1 Excludes: I01 Rheumatic fever with heart involvement ("chronic diseases of rheumatic origin (I05-I09) unless rheumatic fever is also present or there is evidence of reactivation or activity of the rheumatic process.")
• Type 1 Excludes: I05 Rheumatic mitral valve diseases ("mitral valve disease with aortic and/or tricuspid valve involvement (I08.-)")
• Type 1 Excludes: I06 Rheumatic aortic valve diseases ("aortic valve disease with mitral and/or tricuspid valve involvement (I08.-)")
• Type 1 Excludes: I07 Rheumatic tricuspid valve diseases ("tricuspid valve disease with aortic and/or mitral valve involvement (I08.-)")
• Code Also: I27.22 Pulmonary hypertension due to left heart disease ("multiple valve disease (I08.-)")
• Type 1 Excludes: I34 Nonrheumatic mitral valve disorders ("mitral valve disorder of unspecified cause with diseases of aortic and/or tricuspid valve(s) (I08.-)")
• Type 2 Excludes: I35 Nonrheumatic aortic valve disorders ("aortic valve disorder of unspecified cause but with diseases of mitral and/or tricuspid valve(s) (I08.-)")
• Type 1 Excludes: I36 Nonrheumatic tricuspid valve disorders ("tricuspid valve disorders with aortic and/or mitral valve involvement (I08.-)")
• Type 2 Excludes: I51 Complications and ill-defined descriptions of heart disease ("heart disease specified as rheumatic (I00-I09)")

Diagnosis Index entries for I08.1

• Endocarditis (chronic) (marantic) (nonbacterial) (thrombotic) (valvular) › mitral (chronic) (double) (fibroid) (heart) (inactive) (valve) (with chorea) › with › tricuspid (valve) disease
• Endocarditis (chronic) (marantic) (nonbacterial) (thrombotic) (valvular) › tricuspid (chronic) (heart) (inactive) (rheumatic) (valve) (with chorea) › with › mitral (valve) disease
• Insufficiency, insufficient › mitral (valve) › with › tricuspid (valve) disease
• Insufficiency, insufficient › mitral (valve) › rheumatic › with › tricuspid (valve) disease
• Insufficiency, insufficient › tricuspid (valve) (rheumatic) › with › mitral (valve) disease
• Stenosis, stenotic (cicatricial) › tricuspid (valve) › with › mitral (valve) disease

Nearby codes

• I08 Multiple valve diseases
• I08.0 Rheumatic disorders of both mitral and aortic valves
• I08.1 Rheumatic disorders of both mitral and tricuspid valves (this code)
• I08.2 Rheumatic disorders of both aortic and tricuspid valves
• I08.3 Combined rheumatic disorders of mitral, aortic and tricuspid valves
• I08.8 Other rheumatic multiple valve diseases
• I08.9 Rheumatic multiple valve disease, unspecified