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ICD-10 Guide
ICD-10 CodesZ22.340

Z22.340

Carrier of carbapenem-resistant Acinetobacter baumannii

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

Code Description

ICD-10 Z22.340 is a billable code used to indicate a diagnosis of carrier of carbapenem-resistant acinetobacter baumannii.

Key Diagnostic Point:

Z22.340 identifies individuals who are carriers of carbapenem-resistant Acinetobacter baumannii (CRAB), a significant pathogen associated with healthcare-associated infections. Carriers may not exhibit symptoms but can transmit the bacteria to others, posing a risk in healthcare settings. Understanding the social determinants of health, such as access to healthcare, socioeconomic status, and living conditions, is crucial for managing these carriers. Preventive care strategies include screening high-risk populations, implementing infection control measures, and educating patients about hygiene practices. Regular follow-ups and aftercare are essential to monitor potential outbreaks and ensure carriers receive appropriate care, reducing transmission risks.

Code Complexity Analysis

Complexity Rating: Medium

Medium Complexity

Complexity Factors

  • Need for thorough documentation of carrier status and risk factors.
  • Understanding of infection control protocols and their implications.
  • Potential for misclassification if symptoms develop.
  • Variability in carrier prevalence across different populations.

Audit Risk Factors

  • Inadequate documentation of carrier status.
  • Failure to link Z code with appropriate clinical scenarios.
  • Misuse of Z code in symptomatic patients.
  • Lack of follow-up documentation for carriers.

Specialty Focus

Medical Specialties

Primary Care

Documentation Requirements

Document patient history, risk factors, and preventive measures taken.

Common Clinical Scenarios

Routine checkups for carriers, screenings for at-risk populations, and aftercare follow-ups.

Billing Considerations

Consider social determinants such as housing conditions and access to healthcare services.

Public Health

Documentation Requirements

Maintain records for surveillance, outbreak tracking, and population health assessments.

Common Clinical Scenarios

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

Billing Considerations

Focus on reporting and tracking health status in vulnerable populations.

Coding Guidelines

Inclusion Criteria

Use Z22.340 When
  • Z codes are used to indicate a patient's health status or contact with health services
  • 340 should be used when documenting a carrier status without active disease
  • It is important to sequence this code appropriately, often following a primary diagnosis related to infection or screening
  • Payer requirements may vary, so it is essential to verify coverage for preventive services

Exclusion Criteria

Do NOT use Z22.340 When
No specific exclusions found.

Related CPT Codes

87481CPT Code

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

Clinical Scenario

Used when screening for CRAB in a patient identified as a carrier.

Documentation Requirements

Document the reason for the test, patient history, and risk factors.

Specialty Considerations

Primary care providers should ensure comprehensive documentation to support the necessity of testing.

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 concerns related to antibiotic-resistant organisms.

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 concerns related to antibiotic-resistant organisms.

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 concerns related to antibiotic-resistant organisms.

Resources

Clinical References

  • •
    CDC Guidelines for Infection Control

Coding & Billing References

  • •
    CDC Guidelines for Infection Control

Frequently Asked Questions

When should Z22.340 be used?

Z22.340 should be used when documenting a patient as a carrier of carbapenem-resistant Acinetobacter baumannii without active disease. It is important to ensure that the patient is asymptomatic and that appropriate preventive measures are in place.