A52.03 Syphilitic endocarditis

Billable ICD-10-CM code, FY2026. Acts as a Complication or Comorbidity (CC) as a secondary diagnosis.

Applicable to

• Syphilitic aortic valve incompetence or stenosis
• Syphilitic mitral valve stenosis
• Syphilitic pulmonary valve regurgitation

MS-DRG index

Defines the logic of DRG(s) 288-290 in MDC 05.

Approximate ICD-9-CM (GEMs)

• 093.20 Syphilitic endocarditis of valve, unspecified (approximate)
• 093.21 Syphilitic endocarditis of mitral valve (approximate)
• 093.22 Syphilitic endocarditis of aortic valve (approximate)
• 093.23 Syphilitic endocarditis of tricuspid valve (approximate)
• 093.24 Syphilitic endocarditis of pulmonary valve (approximate)

Code annotations containing back-references to A52.03

Back-references to A52.03

• Type 1 Excludes: I39 Endocarditis and heart valve disorders in diseases classified elsewhere ("syphilis (A52.03)")

Back-references to A52

• Type 2 Excludes: N34 Urethritis and urethral syndrome ("urethritis in diseases with a predominantly sexual mode of transmission (A50-A64)")

Diagnosis Index entries for A52.03

• Disease, diseased › coronary (artery) › ostial, syphilitic (aortic) (mitral) (pulmonary)
• Disease, diseased › heart (organic) › syphilitic › aortic
• Endocarditis (chronic) (marantic) (nonbacterial) (thrombotic) (valvular) › aortic (heart) (nonrheumatic) (valve) › syphilitic
• Endocarditis (chronic) (marantic) (nonbacterial) (thrombotic) (valvular) › pulmonary (chronic) (heart) (valve) › syphilitic
• Endocarditis (chronic) (marantic) (nonbacterial) (thrombotic) (valvular) › syphilitic
• Insufficiency, insufficient › aortic (valve) › syphilitic
• Regurgitation › pulmonary (valve) (heart) › syphilitic
• Stenosis, stenotic (cicatricial) › aortic (valve) › syphilitic
• Stenosis, stenotic (cicatricial) › mitral (chronic) (inactive) (valve) › syphilitic
• Syphilis, syphilitic (acquired) › aortic (insufficiency) (regurgitation) (stenosis)
• Syphilis, syphilitic (acquired) › endocarditis
• Syphilis, syphilitic (acquired) › endocarditis › aortic
• Syphilis, syphilitic (acquired) › endocarditis › pulmonary
• Syphilis, syphilitic (acquired) › heart (block) (decompensation) (disease) (failure) › valve NEC
• Syphilis, syphilitic (acquired) › mitral stenosis
• Syphilis, syphilitic (acquired) › valvulitis NEC

Nearby codes

• A52 Late syphilis
• A52.0 Cardiovascular and cerebrovascular syphilis
• A52.00 Cardiovascular syphilis, unspecified
• A52.01 Syphilitic aneurysm of aorta
• A52.02 Syphilitic aortitis
• A52.03 Syphilitic endocarditis (this code)
• A52.04 Syphilitic cerebral arteritis
• A52.05 Other cerebrovascular syphilis
• A52.06 Other syphilitic heart involvement
• A52.09 Other cardiovascular syphilis
• A52.1 Symptomatic neurosyphilis