Late congenital neurosyphilis, unspecified

This code signifies a chronic, non-specific manifestation of syphilis acquired congenitally, affecting the central nervous system, and presenting in later childhood or adulthood. It encompasses neurological damage resulting from untreated or inadequately treated congenital syphilis that was not specified as meningovascular, tabes dorsalis, or general paresis.

Use this code when documentation indicates a diagnosis of late congenital neurosyphilis without further specification of the particular neurological syndrome. This diagnosis is typically supported by a history of congenital syphilis, positive serological tests for syphilis, and neurological symptoms or signs not attributable to other causes.

• Always seek further specificity if the documentation allows for a more precise diagnosis of late congenital neurosyphilis (e.g., meningovascular, tabes dorsalis, general paresis).
• Ensure the documentation clearly links the neurosyphilis to a congenital origin, as acquired neurosyphilis codes are distinct.
• Code any associated neurological manifestations or complications separately, if documented.