A53
Non-billableOther and unspecified syphilis
A53 is the ICD-10-CM code for Other and unspecified syphilis. It is a non-billable category code — use a more specific child code such as A53.0 for billing.
- Status
- Header (non-billable)
- Chapter
- A00-B99
- Subcodes
- 2
- Edition
- FY2026
A00-B99 Certain infectious and parasitic diseases
What this means — in plain language
MedlinePlus · NIHSyphilis 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.
Medications indicated for this condition
FDA labelingDrugs whose FDA labeling lists this condition's category among its indications. Informational only — not a treatment recommendation or medical advice.
Conditions mapped to this code
MedlinePlus · NIHPlain-language health-topic references grounded in MedlinePlus (NIH/NLM).
Frequently asked questions
Source: CMS ICD-10-CM FY2026. For informational purposes only — not medical advice. See our medical disclaimer.
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