Early syphilis

Definition

A disease caused by an infection with the gram-negative bacteria Treponema pallidum pallidum, including primary and secondary stages of syphilis, and early latent syphilis of less than 2 years duration. This disease is characterised by a single chancre in the primary stage, and diffuse rash in the secondary stage. Transmission is commonly by sexual contact.

Exclusions

• Early congenital syphilis (4B4Z)

8 subordinate codes

• 1A61.0Primary genital syphilis
• 1A61.1Primary anal syphilis
• 1A61.2Primary syphilis of other sites
• 1A61.3Secondary syphilis of skin or mucous membranes
• 1A61.4Secondary syphilis of other sites
• 1A61.5Latent early syphilis
• 4B4YOther specified diseases of the immune system
• 4B4ZDiseases of the immune system, unspecified

Nearby in Syphilis

• 1A60Congenital syphilis
• 1A62Late syphilis
• 1A63Latent syphilis, unspecified as early or late
• 4B4ZDiseases of the immune system, unspecified