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 ::Congenital syphilis without clinical manifestations, with positive serological reaction and negative spinal fluid test, less than two years after birth.
 * A50.2 Early congenital syphilis, unspecified
 * Congenital syphilis NOS less than two years after birth.
 * A50.3 Late congenital syphilitic oculopathy
 * Excludes1: Hutchinson's triad (A50.53)
 * A50.30 Late congenital syphilitic oculopathy, unspecified
 * A50.31 Late congenital syphilitic interstitial keratitis
 * A50.32 Late congenital syphilitic chorioretinitis
 * A50.39 Other late congenital syphilitic oculopathy
 * A50.4 Late congenital neurosyphilis [juvenile neurosyphilis]
 * Use additional code to identify any associated mental disorder.
 * Excludes1: Hutchinson's triad (A50.53)
 * A50.40 Late congenital neurosyphilis, unspecified
 * Juvenile neurosyphilis NOS
 * A50.41 Late congenital syphilitic meningitis
 * A50.42 Late congenital syphilitic encephalitis
 * A50.43 Late congenital syphilitic polyneuropathy
 * A50.44 Late congenital syphilitic optic nerve atrophy
 * A50.45 Juvenile general paresis
 * Dementia paralytica juvenilis
 * Juvenile tabetoparetic neurosyphilis
 * A50.49 Other late congenital neurosyphilis
 * Juvenile tabes dorsalis
 * A50.5 Other late congenital syphilis, symptomatic
 * Any congenital syphilitic condition specified as late or manifest two years or more after birth.
 * A50.51 Clutton's joints
 * A50.52 Hutchinson's teeth
 * A50.53 Hutchinson?s triad
 * A50.54 Late congenital cardiovascular syphilis
 * A50.55 Late congenital syphilitic arthropathy
 * A50.56 Late congenital syphilitic osteochondropathy
 * A50.57 Syphilitic saddle nose
 * A50.59 Other late congenital syphilis, symptomatic
 * A50.6 Late congenital syphilis, latent
 * Congenital syphilis without clinical manifestations, with positive serological reaction and negative spinal fluid test, two years or more after birth.
 * A50.7 Late congenital syphilis, unspecified
 * Congenital syphilis NOS two years or more after birth.
 * A50.9 Congenital syphilis, unspecified

A51 Early syphilis

 * A51.0 Primary genital syphilis
 * Syphilitic chancre NOS