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v1.0.0
ICD-10 Guide
ICD-10 CodesZ22.330

Z22.330

Carrier of Group B streptococcus

BILLABLE STATUSYes
IMPLEMENTATION DATEOctober 1, 2015
LAST UPDATED09/12/2025

Code Description

ICD-10 Z22.330 is a billable code used to indicate a diagnosis of carrier of group b streptococcus.

Key Diagnostic Point:

Z22.330 identifies individuals who are carriers of Group B streptococcus (GBS), a bacterium that can be found in the intestines and the lower genital tract. While GBS is typically harmless in adults, it can pose significant risks during pregnancy, potentially leading to serious infections in newborns. Understanding the social determinants of health is crucial, as factors such as access to healthcare, socioeconomic status, and education can influence screening and preventive measures. Preventive care for GBS carriers includes routine screenings during pregnancy, particularly in the third trimester, to assess the risk of transmission to the infant. Screening protocols and aftercare strategies are essential to mitigate risks associated with GBS, especially in vulnerable populations. Documentation of carrier status is vital for ensuring appropriate management and follow-up care, which may include antibiotic prophylaxis during labor to prevent neonatal infection.

Code Complexity Analysis

Complexity Rating: Medium

Medium Complexity

Complexity Factors

  • Need for thorough documentation of carrier status and risk factors.
  • Potential for misclassification if not properly documented.
  • Variability in screening practices across different healthcare settings.
  • Importance of understanding social determinants affecting health outcomes.

Audit Risk Factors

  • Inadequate documentation of carrier status.
  • Failure to document screening results or follow-up care.
  • Misuse of Z codes in the absence of a confirmed diagnosis.
  • Inconsistent application of preventive measures across providers.

Specialty Focus

Medical Specialties

Primary Care

Documentation Requirements

Documentation should include screening results, risk factors, and any preventive measures taken.

Common Clinical Scenarios

Routine prenatal visits where GBS screening is performed.

Billing Considerations

Consideration of social determinants such as access to prenatal care and education about GBS.

Public Health

Documentation Requirements

Population-level data on GBS prevalence and outcomes, including tracking of screening rates.

Common Clinical Scenarios

Public health initiatives aimed at increasing awareness and screening for GBS in pregnant populations.

Billing Considerations

Focus on health equity and access to care for diverse populations.

Coding Guidelines

Inclusion Criteria

Use Z22.330 When
  • Z codes are used to indicate factors influencing health status and contact with health services
  • 330 should be used when a patient is identified as a carrier of GBS, particularly in the context of pregnancy
  • It is important to sequence this code appropriately, often as a secondary diagnosis when the primary diagnosis relates to pregnancy or delivery
  • Payer requirements may vary, so it is essential to verify coverage for preventive screenings

Exclusion Criteria

Do NOT use Z22.330 When
No specific exclusions found.

Related CPT Codes

87491CPT Code

Group B Streptococcus screening

Clinical Scenario

Used during routine prenatal visits to screen for GBS.

Documentation Requirements

Document the screening results and any follow-up care provided.

Specialty Considerations

Primary care providers should ensure proper education on GBS risks.

ICD-10 Impact

Diagnostic & Documentation Impact

Enhanced Specificity

ICD-10 Improvements

The transition to ICD-10 has allowed for greater specificity in coding carrier status, improving the ability to track and manage GBS in pregnant populations.

ICD-9 vs ICD-10

The transition to ICD-10 has allowed for greater specificity in coding carrier status, improving the ability to track and manage GBS in pregnant populations.

Reimbursement & Billing Impact

The transition to ICD-10 has allowed for greater specificity in coding carrier status, improving the ability to track and manage GBS in pregnant populations.

Resources

Clinical References

  • •
    CDC Guidelines for Group B Streptococcus

Coding & Billing References

  • •
    CDC Guidelines for Group B Streptococcus

Frequently Asked Questions

What is the significance of being a carrier of Group B streptococcus?

Being a carrier of GBS is significant, especially during pregnancy, as it can lead to serious infections in newborns. Screening and appropriate management are crucial to prevent transmission.