ICD-10 Code A52.02 – Syphilitic aortitis (2026): Diagnosis, Symptoms & Billing Guide
2026 ICD-10-CM Diagnosis Code A52.02 – Syphilitic aortitis
What it is
A52.02 identifies aortitis caused by syphilis, meaning inflammation of the aorta linked to Treponema pallidum infection. Use it when the record clearly documents syphilitic involvement of the aorta.
Clinical signs
Clinical features vary; refer to documentation. Standard references describe thoracic aortic inflammation, possible aortic root disease, and related cardiovascular findings in late syphilis.
When to use this code
Use this code when the provider documents syphilitic aortitis, syphilitic involvement of the aorta, or cardiovascular syphilis affecting the aorta. It may appear in records describing late syphilis with aortic disease. If the documentation only says aortitis without syphilis, do not assume this code.
Do not use for
Do not use A52.02 for nonsyphilitic aortitis or aortic aneurysm without documented syphilitic cause. Check documentation if the etiology is unclear.
Coding tip
Code the syphilitic cause only when the provider links the aortic inflammation to syphilis in the record.