Mycobacterial Identification and Susceptibility

Test Code

92186

CPT Codes
87118

Includes

If the organism cannot be identified by the original method additional charges will be added for each organism: CPT code(s) 87153: AFB Sequencing

If TB is isolated for the first time or after three months after the first isolate from a patient, susceptibilities will be performed at an additional charge (CPT code(s): 87190 per drug).

If M. avium complex (MAC), M. abscessus complex, M. chelonae, M. fortuitum group, M. kansasii, or M. marinum are isolated, appropriate susceptibilities will automatically be performed at an additional charge (CPT code(s): 87186 per organism).

If other Mycobacteria species are isolated, appropriate susceptibilities can be performed at an additional charge if requested (CPT code(s): 87186 per organism).

Preferred Specimen

Pure isolate on an agar slant in a double-walled container

Other Acceptable Specimens

Minimum 3 mL positive broth bottle or tube

Instructions

Stability of isolates will be determined by the laboratory. Organism must be viable.
For Nocardia identification refer to Bacterial Identification and Susceptibility, Aerobic or Bacteria Identification, Aerobic.

Transport Temperature

Room temperature

Specimen Stability

Room temperature: 30 days
Refrigerated: 30 days
Frozen: Unacceptable

Methodology
Matrix Assisted Laser Desorption Ionization-Time of Flight • Sequencing

Setup Schedule

Set up: Daily; Report available: 6-8 weeks

Reference Range

See Laboratory Report

Clinical Significance

There are more than 70 species of mycobacteria of which the primary pathogen is M. tuberculosis. Tuberculosis is a chronic, granulomatous disease caused by M. tuberculosis.
Identification and, if appropriate, antibiotic susceptibility is required to initiate necessary therapy.

The CPT Codes provided in this document are based on AMA guidelines and are for informational purposes only. CPT coding is the sole responsibility of the billing party. Please direct any questions regarding coding to the payor being billed. Any Profile/panel component may be ordered separately. Reflex tests are performed at an additional charge.