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ICD-10 Guide
ICD-10 CodesZ22.358

Z22.358

Carrier of other Enterobacterales

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

Code Description

ICD-10 Z22.358 is a billable code used to indicate a diagnosis of carrier of other enterobacterales.

Key Diagnostic Point:

Z22.358 identifies individuals who are carriers of Enterobacterales, a family of bacteria that includes pathogens such as Escherichia coli and Klebsiella pneumoniae. Carriers may not exhibit symptoms but can transmit these bacteria to others, posing a public health risk. Understanding the social determinants of health, such as access to healthcare, socioeconomic status, and community health resources, is crucial for managing carriers. Preventive care strategies include education on hygiene practices, screening for infections, and monitoring for potential outbreaks. Screening may involve laboratory tests to identify carriers, especially in high-risk populations or settings such as hospitals and nursing homes. Aftercare focuses on monitoring and managing any potential infections that may arise from these carriers, ensuring that they receive appropriate follow-up care. Documentation must reflect the carrier status and any related health services provided, emphasizing the importance of thorough clinical records to support coding accuracy.

Code Complexity Analysis

Complexity Rating: Medium

Medium Complexity

Complexity Factors

  • Need for precise documentation of carrier status and related health services.
  • Potential for misclassification if symptoms are present.
  • Variability in screening practices across different healthcare settings.
  • Importance of understanding social determinants affecting carrier transmission.

Audit Risk Factors

  • Inadequate documentation of carrier status.
  • Failure to link Z code with appropriate preventive or screening services.
  • Misuse of Z code when symptoms are present.
  • Lack of follow-up documentation for aftercare.

Specialty Focus

Medical Specialties

Primary Care

Documentation Requirements

Documentation should include patient history, screening results, and any preventive measures taken.

Common Clinical Scenarios

Routine checkups where carrier status is identified, screenings for high-risk patients, and aftercare for those with potential infections.

Billing Considerations

Consideration of social determinants such as living conditions, access to healthcare, and community health resources.

Public Health

Documentation Requirements

Documentation must include population-level data, surveillance reports, and outbreak tracking.

Common Clinical Scenarios

Epidemiological studies, community health screenings, and preventive health initiatives targeting carriers.

Billing Considerations

Focus on reporting and tracking health status in communities to prevent outbreaks.

Coding Guidelines

Inclusion Criteria

Use Z22.358 When
  • Z codes are used to indicate a patient's health status or contact with health services
  • When coding Z22
  • 358, ensure it is sequenced correctly, typically following any primary diagnosis
  • Payer requirements may vary, so confirm with specific insurance guidelines regarding the use of Z codes in preventive and screening contexts

Exclusion Criteria

Do NOT use Z22.358 When
No specific exclusions found.

Related CPT Codes

87430CPT Code

Infectious agent detection by nucleic acid (DNA or RNA); Enterobacterales

Clinical Scenario

Used in conjunction with Z22.358 when screening for carrier status.

Documentation Requirements

Document the reason for testing and the carrier status.

Specialty Considerations

Primary care providers should ensure linkage to preventive care.

ICD-10 Impact

Diagnostic & Documentation Impact

Enhanced Specificity

ICD-10 Improvements

The transition to ICD-10 has allowed for greater specificity in coding carrier statuses, improving the ability to track and manage public health risks associated with Enterobacterales.

ICD-9 vs ICD-10

The transition to ICD-10 has allowed for greater specificity in coding carrier statuses, improving the ability to track and manage public health risks associated with Enterobacterales.

Reimbursement & Billing Impact

The transition to ICD-10 has allowed for greater specificity in coding carrier statuses, improving the ability to track and manage public health risks associated with Enterobacterales.

Resources

Clinical References

  • •
    CDC Guidelines on Enterobacterales

Coding & Billing References

  • •
    CDC Guidelines on Enterobacterales

Frequently Asked Questions

What should be documented when coding Z22.358?

Documentation should include the patient's carrier status, any related health services provided, and the context of the screening or preventive care. Consideration of social determinants of health is also important.