I37.9 Nonrheumatic pulmonary valve disorder, unspecified

Billable ICD-10-CM code, FY2026.

Applies from I37 Nonrheumatic pulmonary valve disorders

Excludes1 (never code together)

• pulmonary valve disorder specified as congenital (Q22.1, Q22.2, Q22.3)
• pulmonary valve disorder specified as rheumatic (I09.89)

MS-DRG index

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

Approximate ICD-9-CM (GEMs)

• 424.3 Pulmonary valve disorders (approximate)

Code annotations containing back-references to I37.9

Back-references to I37

• 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 I37.9

• Disease, diseased › pulmonary › valve
• Lesion (s) (nontraumatic) › pulmonary › valve

Nearby codes

• I37 Nonrheumatic pulmonary valve disorders
• I37.0 Nonrheumatic pulmonary valve stenosis
• I37.1 Nonrheumatic pulmonary valve insufficiency
• I37.2 Nonrheumatic pulmonary valve stenosis with insufficiency
• I37.8 Other nonrheumatic pulmonary valve disorders
• I37.9 Nonrheumatic pulmonary valve disorder, unspecified (this code)