ICD-10-CM Book 2025 Edition
Chapters ICD-10-CM Book Table of Content /
A50-A64 Infections with a predominantly sexual mode of transmission /
A53 Other and unspecified syphilis
Billable ICD-10-CM Code A53.9
A53.9
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Syphilis, unspecified 
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Infection due to Treponema pallidum NOS
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Syphilis (acquired) NOS
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excludes1
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syphilis NOS under two years of age (A50.2) |
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