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Early syphilis, latent

ICD10CM code

Name of the Condition

  • Early Syphilis, Latent
  • Technical term: A51.5

Summary

  • Early latent syphilis is a stage of syphilis infection where the individual is infected with the causative bacterium Treponema pallidum but exhibits no symptoms. This stage occurs within the first year after infection.

Causes

  • Syphilis is caused by the bacterium Treponema pallidum. It is primarily transmitted through sexual contact with an infected person.

Risk Factors

  • Engaging in unprotected sex.
  • Having multiple sexual partners.
  • Being sexually active with a partner who has syphilis.
  • Having a history of sexually transmitted infections (STIs).

Symptoms

  • During the latent stage of syphilis, there are no noticeable symptoms. Diagnosis typically occurs prior to this stage due to symptoms in the earlier primary or secondary stages.

Diagnosis

  • Blood tests such as the rapid plasma reagin (RPR) or the Venereal Disease Research Laboratory (VDRL) test, followed by more specific tests like the fluorescent treponemal antibody absorption (FTA-ABS) test.

Treatment Options

  • The standard treatment for latent syphilis, including early latent, is an intramuscular injection of benzathine penicillin G.
  • The antibiotic eradicates the bacteria, halting disease progression but does not reverse any damage already caused.

Prognosis and Follow-Up

  • With appropriate treatment, the prognosis is excellent, and the infection can be completely cured.
  • Regular follow-ups and blood tests are recommended to ensure the effectiveness of treatment and the infection's resolution.

Complications

  • If untreated, latent syphilis can progress to late latent syphilis and eventually to tertiary syphilis, leading to severe complications affecting the heart, brain, nerves, eyes, and bones.

Lifestyle & Prevention

  • Consistent use of condoms during sex and regular STI screenings can help prevent syphilis.
  • Limiting the number of sexual partners and ensuring partners are tested and free of STIs.

When to Seek Professional Help

  • Seek medical advice if you suspect exposure to syphilis or if a sexual partner is diagnosed with syphilis, even in the absence of symptoms.

Additional Resources

  • Centers for Disease Control and Prevention (CDC) - Syphilis information: CDC Syphilis webpage
  • American Sexual Health Association (ASHA) - Information and support for STIs: ASHA website

Tips for Medical Coders

  • Ensure accurate coding by confirming through laboratory tests that the syphilis is in the early latent stage.
  • Avoid confusion with other stages of syphilis by reviewing patient records for timing and symptoms prior to coding.

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