Summary & Overview
CPT 82480: Serum Cholinesterase Assay
CPT code 82480 designates a serum cholinesterase assay, a clinical laboratory test that quantifies cholinesterase activity in a patient's blood. This enzyme test is used to evaluate neuromuscular and toxic exposure conditions and can have implications for medication selection, perioperative planning, and occupational or toxicology assessments. Nationally, enzymatic assays like this are part of routine diagnostic and monitoring services provided in hospital and clinical laboratories.
Key payers in the analysis include Aetna, Blue Cross Blue Shield, Cigna Health, UnitedHealthcare, and Medicare. Readers will find a concise overview of clinical context and typical sites of service, plus information relevant to billing workflows: common modifiers associated with laboratory services, where the service is performed, and how the code is used in practice. The publication covers benchmarks and payer coverage patterns where available, notes on documentation and ordering context for cholinesterase testing, and links to related laboratory procedure concepts. Data not available in the input is clearly identified where applicable.
Billing Code Overview
CPT code 82480 measures the level of cholinesterase in a patient's blood serum specimen. Cholinesterase is an enzyme important for proper nervous system function, and this laboratory test quantifies its activity in serum.
Service Type: Clinical laboratory test — enzymatic assay
Typical Site of Service: Clinical laboratory or hospital laboratory
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Clinical & Coding Specifications
Clinical Context
A 34-year-old agricultural worker presents to an outpatient laboratory after acute onset of nausea, dizziness, excessive salivation, and muscle weakness following suspected organophosphate exposure at work. The treating clinician orders measurement of serum cholinesterase activity to assess cholinesterase inhibition. A phlebotomy technician collects a serum specimen, labels it with patient identifiers and collection time, and sends it to the clinical chemistry laboratory. The laboratory analyst performs the quantitative cholinesterase assay (82480) using validated methods, documents specimen integrity and any hemolysis, and reports activity results to the ordering clinician. Results are used with clinical findings to support diagnosis, guide antidotal therapy (for example, atropine/pralidoxime), and monitor recovery or chronic low-level exposure. Typical sites of service include outpatient laboratories, hospital clinical laboratories, emergency departments, urgent care centers, and occupational health clinics.
Coding Specifications
| Modifier | Description | When to Use |
|---|---|---|
26 | Professional component | Use when billing only the professional component (interpretation or professional oversight) if separated from the technical component. |