Exhibit 10-1. Classification of TB

ClassTypeDescription
0No TB exposureNo history of exposure; negative skin test for TB
1TB exposure; no evidence of infectionHistory of exposure; negative skin test for TB
2TB infection; no diseasePositive skin test for TB; no clinical, bacteriologic, or radiographic evidence of active TB
3TB infection; clinically active Mycobacterium tuberculosis-positive culture (if done); clinical, bacteriologic, or radiographic evidence of active TB
4TB infection; not clinically active now; clinically active in pastHistory of TB episodes or Abnormal but stable radiographic findings; negative bacteriologic studies (if done); positive skin test for TB and No clinical or radiographic evidence of active disease
5TB suspectedDiagnosis pending

From: Chapter 10. Associated Medical Problems in Patients Who Are Opioid Addicted

Cover of Medication-Assisted Treatment for Opioid Addiction in Opioid Treatment Programs
Medication-Assisted Treatment for Opioid Addiction in Opioid Treatment Programs.
Treatment Improvement Protocol (TIP) Series, No. 43.
Center for Substance Abuse Treatment.

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