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2025 CPT code 95872

Single-fiber needle electromyography (EMG) with quantitative measurement of jitter, blocking, and/or fiber density at any/all sites of each muscle studied.

Adhere to the official CPT coding guidelines for electromyography and nerve conduction studies.Appropriate modifiers (e.g., 26 for professional component, TC for technical component) should be appended as necessary.

Modifiers 26 (professional component) and TC (technical component) may be applicable depending on who performs each component of the service.Refer to the CPT manual for appropriate modifier use.

Medical necessity for SFEMG is established when the physician has a clinical indication suggesting a neuromuscular junction disorder (e.g., myasthenia gravis, Lambert-Eaton myasthenic syndrome). The test provides crucial information to differentiate between various disorders.

The physician or qualified healthcare professional inserts the needle electrode, records the electrical signals, interprets the waveforms, and generates a report detailing the findings.This includes assessing jitter, blocking, and fiber density to diagnose neuromuscular junction disorders.

IMPORTANT:May be used in conjunction with other EMG codes (95860-95870, 95885-95887) depending on the number of muscles tested and whether nerve conduction studies are performed on the same day.Refer to CPT guidelines for specific coding rules.

In simple words: This test uses a tiny needle electrode inserted into a muscle to measure its electrical activity.It helps diagnose muscle and nerve problems, especially myasthenia gravis, by checking for irregularities in how the nerve signals the muscle.

Single-fiber needle electromyography (SFEMG) involves recording and analyzing electrical signals from individual muscle fibers within motor units, both at rest and during voluntary contraction.A specialized needle electrode with a small recording surface is inserted into the muscle to isolate the electrical activity of specific muscle fibers.The procedure quantifies parameters such as jitter (irregularity of neuromuscular transmission), blocking (transmission failure), and fiber density.These measurements help diagnose neuromuscular disorders, particularly myasthenia gravis.

Example 1: A patient presents with fluctuating muscle weakness and fatigue, suggestive of myasthenia gravis.SFEMG of the facial muscles (orbicularis oculi, orbicularis oris) is performed to assess neuromuscular transmission.Elevated jitter and/or blocking would support the diagnosis., A patient with suspected Lambert-Eaton myasthenic syndrome undergoes SFEMG of the limb muscles to evaluate presynaptic dysfunction.The test measures changes in the amplitude and waveform characteristics of the muscle action potentials., A patient presents with a progressive muscle disorder of unknown etiology. SFEMG of various muscles (extremities, paraspinal muscles) provides detailed assessment of muscle fiber function and helps differentiate various forms of muscle diseases.

* Detailed patient history including symptoms and duration of symptoms* Thorough neurological examination findings* Identification of muscles tested and location of needle electrode insertions* Quantitative measurement of jitter, blocking, and/or fiber density for each muscle tested* Detailed interpretation of the results, correlating with the clinical presentation.

** Specific documentation requirements and coding rules may vary by payer. Always refer to payer-specific guidelines for accurate billing and reimbursement.

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