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Official Description

Quantitative sensory testing (QST), testing and interpretation per extremity; using touch pressure stimuli to assess large diameter sensation

© Copyright 2026 American Medical Association. All rights reserved.

Common Language Description

Quantitative sensory testing (QST) is a diagnostic procedure that evaluates the sensory response of a patient's extremities by applying specific sensory stimuli. This testing is particularly focused on assessing large diameter sensation, which is crucial for understanding the functionality of sensory pathways in the nervous system. During the procedure, a specialized device is utilized to deliver controlled touch pressure stimuli to the patient's limb, allowing the physician to gauge the sensory response accurately. The results of this testing can provide valuable insights into the patient's sensory nerve function and help in diagnosing various neurological conditions. It is important to note that different codes are designated for testing various types of sensory stimuli: for pressure stimulation, the code 0106T is used; for vibration sensation, 0107T; for cool temperature response, 0108T; for heat and/or pain stimuli, 0109T; and for any other stimuli not covered by these codes, 0110T is applicable. This structured approach to sensory testing allows for a comprehensive assessment of the patient's sensory capabilities and aids in the formulation of an appropriate treatment plan.

© Copyright 2026 Coding Ahead. All rights reserved.

1. Indications

The quantitative sensory testing (QST) procedure is indicated for various clinical scenarios where assessment of sensory nerve function is necessary. The following conditions may warrant the use of this testing:

  • Neuropathy - Patients presenting with symptoms of peripheral neuropathy, which may include numbness, tingling, or pain in the extremities.
  • Diabetes Mellitus - Individuals with diabetes may require sensory testing to evaluate for diabetic neuropathy, a common complication of the disease.
  • Multiple Sclerosis - Patients with multiple sclerosis may undergo QST to assess sensory pathway integrity and monitor disease progression.
  • Radiculopathy - Individuals experiencing radiculopathy may benefit from sensory testing to determine the extent of nerve root involvement.
  • Post-Surgical Assessment - Following surgical procedures that may impact nerve function, QST can be used to evaluate recovery and sensory restoration.

2. Procedure

The quantitative sensory testing procedure involves several key steps to ensure accurate assessment of sensory response. The following outlines the procedural steps:

  • Step 1: Patient Preparation - The patient is positioned comfortably, and the limb to be tested is exposed. The physician explains the procedure to the patient, ensuring they understand what to expect during the testing process.
  • Step 2: Calibration of the Device - A specialized device designed for quantitative sensory testing is calibrated to deliver precise touch pressure stimuli. This calibration is crucial for obtaining reliable and reproducible results.
  • Step 3: Application of Stimuli - The physician applies touch pressure stimuli to the designated extremity. The intensity and duration of the stimuli are controlled and documented to ensure consistency throughout the testing.
  • Step 4: Assessment of Sensory Response - The patient's sensory response to the applied stimuli is carefully monitored and recorded. The physician may ask the patient to report their sensations, including any discomfort or pain experienced during the testing.
  • Step 5: Interpretation of Results - After completing the testing, the physician interprets the results based on the patient's responses. This interpretation aids in diagnosing potential sensory nerve dysfunction and guides further clinical decision-making.

3. Post-Procedure

After the quantitative sensory testing is completed, the patient may be advised on any necessary follow-up actions based on the results obtained. Typically, there are no specific post-procedure care requirements, and patients can resume their normal activities immediately. However, the physician may schedule a follow-up appointment to discuss the findings and any further diagnostic or therapeutic interventions that may be needed. It is essential for the physician to document the results of the testing thoroughly, as this information will be critical for ongoing patient management and treatment planning.

Short Descr TOUCH QUANT SENSORY TEST
Medium Descr QUANT SENSORY TEST&INTERPJ/XTR W/TOUCH STIMULI
Long Descr Quantitative sensory testing (QST), testing and interpretation per extremity; using touch pressure stimuli to assess large diameter sensation
Status Code Carriers Price the Code
Global Days XXX - Global Concept Does Not Apply
PC/TC Indicator (26, TC) 0 - Physician Service Code
Multiple Procedures (51) 0 - No payment adjustment rules for multiple procedures apply.
Bilateral Surgery (50) 0 - 150% payment adjustment for bilateral procedures does NOT apply.
Physician Supervisions 09 - Concept does not apply.
Assistant Surgeon (80, 82) 0 - Payment restriction for assistants at surgery applies to this procedure...
Co-Surgeons (62) 0 - Co-surgeons not permitted for this procedure.
Team Surgery (66) 0 - Team surgeons not permitted for this procedure.
Diagnostic Imaging Family 99 - Concept Does Not Apply
APC Status Indicator STV-Packaged Codes
Type of Service (TOS) 9 - Other Medical Items or Services
Berenson-Eggers TOS (BETOS) P5E - Ambulatory procedures - other
MUE 4
CCS Clinical Classification 7 - Other diagnostic nervous system procedures
GC This service has been performed in part by a resident under the direction of a teaching physician
Date
Action
Notes
2006-01-01 Added First appearance in code book in 2006.
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Description
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