A52.9

Billable

Late syphilis, unspecified

A52.9 is the ICD-10-CM code for Late syphilis, unspecified. It is a billable, specific code valid for reimbursement.

Status
Billable
Chapter
A00-B99
Parent
A52
Edition
FY2026

A00-B99 Certain infectious and parasitic diseases

What this means — in plain language

MedlinePlus · NIH

Syphilis is a sexually transmitted infection (STI) caused by bacteria. It infects the genital area, lips, mouth, or anus of both men and women. You usually get syphilis from sexual contact with someone who has it. It can also pass from mother to baby during pregnancy. The early stage of syphilis usually causes a single, small, painless sore. Sometimes it causes swelling in nearby lymph nodes. If you do not treat it,…

Read more about Syphilis at MedlinePlus ↗

Source: U.S. National Library of Medicine (MedlinePlus). Informational only — not medical advice.

No additional coding notes for this code.

Frequently asked questions

What is ICD-10 code A52.9?
A52.9 is the ICD-10-CM code for "Late syphilis, unspecified". It falls under A00-B99 Certain infectious and parasitic diseases.
Is A52.9 a billable code?
Yes — A52.9 is a billable, specific ICD-10-CM code valid for reimbursement.

Source: CMS ICD-10-CM FY2026. For informational purposes only — not medical advice. See our medical disclaimer.

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