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v1.0.0
ICD-10 Guide
DiagnosesPositive Tuberculosis Test

Positive Tuberculosis Test

ICD-10 Coding for Positive Tuberculosis Test(R76.11, Z11.1)

PRIMARY SPECIALTYOccupational Medicine
COMPLEXITYHigh
LAST UPDATED09/15/2025
Sam Tuffun, PT, DPT
Physical Therapist | Medical Coding & Billing Contributor

Diagnosis Overview

What is Positive Tuberculosis Test?
Essential facts and insights about Positive Tuberculosis Test

Key Clinical Considerations:

  • Cough lasting more than three weeks
  • Unexplained weight loss
  • Night sweats
  • Fever and chills
  • Fatigue
  • Positive tuberculin skin test (TST) or interferon-gamma release assay (IGRA)

Clinical Information

Clinical Criteria & Documentation Requirements

  • Patient history including exposure risk
  • Results of TST or IGRA
  • Chest X-ray findings
  • Symptoms and duration
  • Follow-up plan and treatment considerations

Coding Guidelines

Usage Guidelines & Examples

  • Use A15.0 for confirmed cases; Z11.1 for screening.
  • Common errors include using non-specific codes or omitting test results.

Code Exclusions

Important Exclusions

  • Active pulmonary tuberculosis (A15.0) should not be coded with Z11.1.
  • Do not use codes for latent TB infection when active TB is present.

Related ICD-10 Codes

Primary Codes
A15.0
Tuberculosis of the lung, confirmed by culture
Z11.1
Encounter for screening for tuberculosis
Ancillary Codes
Z11.1
Differential Codes
Z22.7
Z22.7
when latent TB infection is confirmed.

Related CPT Codes

CPT codes will be available in a future update.

Specialty Focus

Primary Specialty

Occupational Medicine

Specialty Applications

  • High-risk populations (e.g., healthcare workers, immunocompromised patients)
  • Occupational health settings, public health screenings

Coding Complexity

High Complexity

This diagnosis requires careful attention to:

  • Comprehensive clinical documentation
  • Accurate code selection based on clinical criteria
  • Proper exclusion considerations
  • Specialty-specific coding guidelines

Documentation

Documentation Templates

Billing Information

Billing Considerations

  • Ensure proper documentation for billing
  • Verify code specificity requirements
  • Check for any additional codes needed
  • Review payer-specific guidelines

Common Issues

  • Insufficient clinical documentation
  • Incorrect code selection
  • Missing supporting diagnoses
  • Timing and frequency documentation

Frequently Asked Questions

Documentation requirements?

Include patient history, test results, and treatment plan.

Billing considerations?

Ensure correct ICD codes are used for accurate reimbursement.