Ordering Recommendation

Identify M. tuberculosis complex species and susceptibility.

New York DOH Approval Status

This test is New York state approved.

Specimen Required

Patient Preparation

Actively growing organism, in pure culture.

Specimen Preparation

Transport sealed container with pure culture on solid or in liquid media. Place each specimen in an individually sealed bag.

Storage/Transport Temperature

Room temperature. If culture is suspected of being a microorganism identified on the IATA list as an infectious substance affecting humans, submit specimen according to Infectious Substance, Category A, shipping guidelines.

Unacceptable Conditions

Mixed cultures or non-viable organisms. Organisms submitted on agar plate.


Indicate source of organism and any other pertinent information such as growth rate of the organism or DNA probe results.


Ambient: 2 weeks; Refrigerated: 2 weeks; Frozen: 2 weeks


Methods may include biochemical, mass spectrometry, or sequencing.
Susceptibility Testing




Depends on organism growth.

Reference Interval

Complete identification and susceptibility of clinically significant isolates of M. tuberculosis complex, M. kansasii, M. avium-intracellulare complex, M. fortuitum complex, M. abscessus complex, M. chelonae, M. immunogenum and any isolate from a significant source.

Interpretive Data

For identification by DNA sequencing and MALDI-TOF

Compliance Category

Depends on Specimen/Source/Method


If a significant organism listed above is identified, then the appropriate susceptibility panel will be added. Additional charges apply. For other organisms, contact ARUP if susceptibility testing is clinically indicated.

A processing fee will be billed for all organisms submitted that are not in pure culture as requested in the specimen requirements. Identification of AFB isolates is billed by individual tests performed.

Hotline History


CPT Codes

CPT codes for identification and susceptibility vary based on method.


Component Test Code* Component Chart Name LOINC
0060997 AFB Identification/Susceptibility 29579-0
* Component test codes cannot be used to order tests. The information provided here is not sufficient for interface builds; for a complete test mix, please click the sidebar link to access the Interface Map.


  • ID by sequencing
  • M. tuberculosis identification
  • MA AFB
  • Mycobacteria identification
  • Mycobacterium tuberculosis identification
  • Primary Anti-tuberculosis agents
  • Primary Panel
Acid-Fast Bacillus (AFB) Identification with Reflex to Susceptibility