ICD-10 Code A52.05 – Other cerebrovascular syphilis (2026): Diagnosis, Symptoms & Billing Guide
2026 ICD-10-CM Diagnosis Code A52.05 – Other cerebrovascular syphilis
What it is
This code identifies cerebrovascular disease caused by syphilis that does not fit a more specific cerebrovascular syphilis category. Use it when documentation links syphilis to brain or vessel involvement.
Clinical signs
Clinical features vary; refer to documentation. Findings may include stroke-like deficits, headache, or other neurologic changes when syphilitic involvement of cerebral vessels is described.
When to use this code
Use A52.05 when the provider documents cerebrovascular involvement due to syphilis and no more specific code applies. It is appropriate for confirmed syphilitic vasculopathy, meningovascular disease, or similar documented presentations. Check documentation if the record only says neurosyphilis without vascular involvement.
Do not use for
Do not use this code for nonspecific neurologic symptoms without a documented cerebrovascular link to syphilis. Do not assign it when a different syphilis manifestation is clearly documented.
Coding tip
Look for explicit provider wording connecting syphilis to cerebrovascular disease before assigning A52.05.