A53.9 - Syphilis, unspecified
- Applicable to Syphilis, unspecified
- The 2025 edition of ICD10-CM A53.9 became effective on October 1, 2024.
- This is the American ICD10-CM version of A53.9 - other international versions of ICD10 A53.9 may differ.
- A53.9 is a Billable / Specific ICD10-CM code that can be used to indicate a diagnosis for reimbursement purposes.
Inclusion Term
- Infection due to Treponema pallidum NOS
- Syphilis (acquired) NOS
Type 1 Excludes
- syphilis NOS under two years of age (A50.2)
The following codes above A53.9 contain annotation back-references that may be applicable to A53.9:
Chapter: A00-B99 Certain infectious and parasitic diseases
Section: A50-A64 Infections with a predominantly sexual mode of transmission
Category: A53 Other and unspecified syphilis
Billable/Specific Code
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Reimbursement claims with a date of service on or after October 1, 2015 require the use of ICD-10-CM codes.
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