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v1.0.0
ICD-10 Guide
ICD-10 CodesChapter 1: Certain infectious and parasitic diseasesA50.0

A50.0

Billable

Congenital syphilis, symptomatic

Chapter 1:Certain infectious and parasitic diseases

BILLABLE STATUSYes
IMPLEMENTATION DATEOctober 1, 2015
LAST UPDATED09/05/2025

Code Description

ICD-10 A50.0 is a billable code used to indicate a diagnosis of congenital syphilis, symptomatic.

Key Diagnostic Point:

Congenital syphilis is a serious condition resulting from the transmission of Treponema pallidum from an infected mother to her fetus during pregnancy. Symptomatic congenital syphilis manifests with a variety of clinical signs and symptoms, which may include skin rashes, mucous membrane lesions, hepatosplenomegaly, and skeletal abnormalities. Infants may present with a characteristic 'snuffles' (nasal discharge), bone deformities, and neurological impairment. The severity of symptoms can vary widely, and early diagnosis and treatment are crucial to prevent long-term complications. Congenital syphilis can lead to significant morbidity and mortality if left untreated, making it essential for healthcare providers to recognize the signs and symptoms promptly. The condition is preventable through effective prenatal screening and treatment of syphilis in pregnant women, emphasizing the importance of routine screening for sexually transmitted infections (STIs) during pregnancy.

Code Complexity Analysis

Complexity Rating: Medium

Medium Complexity

Complexity Factors

  • Differentiating between symptomatic and asymptomatic congenital syphilis.
  • Need for comprehensive maternal history to establish transmission.
  • Variability in clinical presentation among affected infants.
  • Potential for co-infection with other STIs complicating diagnosis.

Audit Risk Factors

  • Inadequate documentation of maternal syphilis status.
  • Failure to document specific symptoms in the infant.
  • Misclassification of congenital syphilis as acquired syphilis.
  • Lack of follow-up documentation for treatment outcomes.

Specialty Focus

Medical Specialties

Pediatrics

Documentation Requirements

Detailed clinical notes on infant symptoms, maternal history, and treatment plans.

Common Clinical Scenarios

Infants presenting with rashes, respiratory distress, or neurological symptoms.

Billing Considerations

Consideration of maternal health and STI screening during pregnancy.

Obstetrics

Documentation Requirements

Thorough prenatal screening records, treatment history for syphilis, and delivery notes.

Common Clinical Scenarios

Pregnant women diagnosed with syphilis requiring treatment and monitoring.

Billing Considerations

Importance of timely treatment to prevent transmission to the fetus.

Coding Guidelines

Inclusion Criteria

Use A50.0 When
  • Follow the official ICD
  • CM coding guidelines for congenital infections
  • Ensure accurate documentation of maternal syphilis status and infant symptoms
  • Include any relevant laboratory findings and treatment details

Exclusion Criteria

Do NOT use A50.0 When
No specific exclusions found.

Related ICD-10 Codes

Related CPT Codes

86592CPT Code

Syphilis serology test

Clinical Scenario

Used for screening pregnant women for syphilis.

Documentation Requirements

Document the reason for testing and results.

Specialty Considerations

Obstetricians should ensure routine screening is performed.

ICD-10 Impact

Diagnostic & Documentation Impact

Enhanced Specificity

ICD-10 Improvements

The transition to ICD-10 has allowed for more specific coding of congenital syphilis, improving data accuracy and facilitating better tracking of cases and treatment outcomes.

ICD-9 vs ICD-10

The transition to ICD-10 has allowed for more specific coding of congenital syphilis, improving data accuracy and facilitating better tracking of cases and treatment outcomes.

Reimbursement & Billing Impact

The transition to ICD-10 has allowed for more specific coding of congenital syphilis, improving data accuracy and facilitating better tracking of cases and treatment outcomes.

Resources

Clinical References

  • •
    CDC Syphilis Fact Sheet

Coding & Billing References

  • •
    CDC Syphilis Fact Sheet

Frequently Asked Questions

What are the common symptoms of congenital syphilis?

Common symptoms include skin rashes, nasal discharge (snuffles), hepatosplenomegaly, and skeletal abnormalities. Neurological symptoms may also be present.