I36.1 Nonrheumatic tricuspid (valve) insufficiency

Billable ICD-10-CM code, FY2026.

Applicable to

• Nonrheumatic tricuspid (valve) incompetence
• Nonrheumatic tricuspid (valve) regurgitation

Applies from I36 Nonrheumatic tricuspid valve disorders

Excludes1 (never code together)

• tricuspid valve disorders of unspecified cause (I07.-)
• tricuspid valve disorders specified as congenital (Q22.4, Q22.8, Q22.9)
• tricuspid valve disorders specified as rheumatic (I07.-)
• tricuspid valve disorders with aortic and/or mitral valve involvement (I08.-)

MS-DRG index

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

Approximate ICD-9-CM (GEMs)

• 424.2 Tricuspid valve disorders, specified as nonrheumatic (approximate)

Code annotations containing back-references to I36.1

Back-references to I36

• Type 1 Excludes: I07 Rheumatic tricuspid valve diseases ("tricuspid valve disease specified as nonrheumatic (I36.-)")
• Type 2 Excludes: I08 Multiple valve diseases ("multiple valve disease specified as nonrheumatic (I34.-, I35.-, I36.-, I37.-, I38.-, Q22.-, Q23.-, Q24.8-)")

Diagnosis Index entries for I36.1

• Insufficiency, insufficient › tricuspid (valve) (rheumatic) › nonrheumatic

Nearby codes

• I36 Nonrheumatic tricuspid valve disorders
• I36.0 Nonrheumatic tricuspid (valve) stenosis
• I36.1 Nonrheumatic tricuspid (valve) insufficiency (this code)
• I36.2 Nonrheumatic tricuspid (valve) stenosis with insufficiency
• I36.8 Other nonrheumatic tricuspid valve disorders
• I36.9 Nonrheumatic tricuspid valve disorder, unspecified