Early syphilis A51

The ICD10 code for the diagnosis "Early syphilis" is "A51". A51 is NOT a 'valid' or 'billable' ICD10 code. Please select a more specific diagnosis below.

• A51 should not be used for reimbursement purposes. Please select a more specific diagnosis below.
• The 2019 edition of ICD-10-CM A51 became effective on October 1, 2018.
• This is the American ICD-10-CM version of A51 - other international versions of ICD-10 A51 may differ.

Codes: = Billable

• A51 Early syphilis
  • A51.0 Primary genital syphilis
  • A51.1 Primary anal syphilis
  • A51.2 Primary syphilis of other sites
  • A51.3 Secondary syphilis of skin and mucous membranes
  • A51.4 Other secondary syphilis
  • A51.5 Early syphilis, latent
  • A51.9 Early syphilis, unspecified

Reimbursement claims with a date of service on or after October 1, 2015 require the use of ICD-10-CM codes.