Summary & Overview
CPT 95864: Needle Electromyography (EMG) Recording of Skeletal Muscle
CPT code 95864 represents a diagnostic needle electromyography (EMG) procedure that records electrical activity of skeletal muscles at rest and during voluntary contraction while the provider inserts needles and listens to the recordings on a loudspeaker. This electrodiagnostic study is a standard tool in neuromuscular evaluation and has national relevance for diagnosing neuropathies, myopathies, and motor neuron disorders. Accurate coding and understanding of 95864 affects clinical documentation, coverage determinations, and utilization measurement across payers. Key payers in this analysis include Aetna, Blue Cross Blue Shield, Cigna Health, UnitedHealthcare, and Medicare.
Readers will learn the clinical context of the service, typical sites of care, and the elements that distinguish this procedure from other electrodiagnostic services. The publication summarizes coding specifics, common payer considerations, and benchmarks where available. It also highlights policy and billing topics that commonly affect needle EMG claims, including documentation requirements and procedural scope. Data not available in the input will be noted where applicable; the focus remains on national clinical and coding clarity for providers, billing staff, and policy analysts.
Billing Code Overview
CPT code 95864 describes an electromyography (needle EMG) procedure in which the provider records electrical activity of skeletal muscle fibers by inserting needles into the muscle during rest and during voluntary contraction. The activity is monitored and can be audibly heard via loudspeaker as recordings are made.
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Service type: Diagnostic electrodiagnostic study (needle electromyography)
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Typical site of service: Ambulatory clinic or hospital outpatient setting (electrodiagnostic laboratory or physician office equipped for EMG)
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Clinical & Coding Specifications
Clinical Context
A 52-year-old patient presents to a neurology clinic with progressive distal limb weakness, intermittent paresthesia, and muscle cramps over several months. The neurologist performs a targeted neuromuscular evaluation including strength testing, reflex assessment, and focused history to localize possible peripheral neuropathy versus myopathy. After clinical examination suggests a primary muscle or motor neuron disorder, the provider schedules an electrodiagnostic study with needle electromyography.
During the visit the patient is positioned comfortably on an exam table. The provider informs the patient about the procedure, obtains consent, and selects specific muscles for study based on the clinical localization (for example, tibialis anterior, gastrocnemius, biceps brachii). Using sterile technique, the provider inserts concentric needle electrodes into muscles at rest and during voluntary activation while recording electrical activity on the electromyograph. Sounds are monitored on a loudspeaker and waveforms are displayed to assess insertional activity, spontaneous activity (fibrillations, positive sharp waves), motor unit potential morphology, and recruitment patterns. Findings are interpreted in real time and documented in the medical record. The session may include multiple muscles and limbs; testing duration and complexity vary by clinical question.
Typical site of service: outpatient neurology clinic, hospital outpatient department, or ambulatory surgical center equipped for electrodiagnostic testing. Typical service type: diagnostic electrodiagnostic procedure (needle EMG) billed by the performing physician or qualified provider using 95864 for needle EMG of limb(s) with stimulus and auditory monitoring as described.
Coding Specifications
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