Summary & Overview
CPT 83088: Histamine Assay in Blood, Serum, Plasma, or Urine
CPT code 83088 identifies a clinical laboratory assay that measures histamine in whole blood, serum, plasma, or urine. This test supports evaluation of allergic reactions, mast cell activation disorders, and other conditions where histamine release is clinically relevant. As a specialized laboratory measure, CPT code 83088 is used across ambulatory and hospital laboratory settings and factors into diagnostic pathways where biochemical confirmation of histamine elevation is sought.
Key payers discussed include Aetna, Blue Cross Blue Shield, Cigna Health, UnitedHealthcare, and Medicare. Readers will find a national-level overview of what CPT code 83088 represents, how it is typically ordered and processed in clinical practice, and the payer context for coverage considerations. The publication covers benchmarking of service utilization patterns, coding and billing considerations for laboratory services, and the clinical context that informs test ordering.
The report provides practical reference material rather than clinical guidance: it outlines where CPT code 83088 fits within laboratory service lines, typical sites of service, and the kinds of clinical scenarios that prompt histamine testing. Data not available in the input is noted where relevant.
Billing Code Overview
CPT code 83088 describes a laboratory test that measures histamine levels in biological specimens such as whole blood, serum, plasma, or urine. Histamine is a biogenic amine stored in mast cells and basophils and is released during tissue injury and allergic or inflammatory responses. The test quantifies circulating or excreted histamine to aid clinical assessment of conditions associated with mast cell activation or abnormal histamine metabolism.
Service Type: Clinical laboratory testing — histamine assay
Typical Site of Service: Clinical laboratory or hospital laboratory; specimens may be collected in outpatient clinics, emergency departments, or inpatient settings and sent to a laboratory for analysis.
Clinical & Coding Specifications
Clinical Context
A 38-year-old outpatient presents to an allergy clinic with recurrent episodes of flushing, pruritus, and suspected mast cell activation after a recent insect sting. The clinician orders a laboratory histamine level to evaluate systemic histamine release and help differentiate allergic reactions or mast cell disorders from other causes. A phlebotomy technician collects whole blood into the appropriate tube (typically EDTA or heparin, per lab protocol) and immediately places the sample on ice or refrigerates it, then courier transports it to the clinical laboratory for processing. The laboratory analyst performs 83088—quantitative histamine measurement in whole blood or plasma using validated analytical methods (e.g., HPLC, immunoassay). Results are reported to the ordering clinician, who integrates the value with clinical history, tryptase levels, and other allergy testing to inform diagnosis and management.
Coding Specifications
| Modifier | Description | When to Use |
|---|---|---|
26 | Professional component | When reporting only the professional interpretation component if separated billing applies and the lab provides interpretive consultation distinct from the technical test. |
59 |