Summary & Overview
CPT 82365: Infrared Spectroscopic Analysis of Stone Composition
CPT code 82365 defines an infrared spectroscopic analysis performed by a laboratory analyst to determine the chemical composition of a calculus or stone from the kidney, ureter, bladder, or gall bladder. Accurate stone analysis supports targeted clinical management, informs recurrence prevention strategies, and affects downstream diagnostic and therapeutic decisions, making this test nationally relevant for urology, nephrology, and gastroenterology care pathways.
Key payers covered include Aetna, Blue Cross Blue Shield, Cigna Health, UnitedHealthcare, and Medicare. Readers will find a concise national overview of the code’s clinical use and operational context, including typical sites of service and the laboratory nature of the procedure. The publication outlines benchmarking considerations, payer coverage landscape, and clinical context for interpreting results, including common stone constituents such as calcium oxalate, urates, and cystine.
This material provides a practical reference for billing, coding, and policy staff to understand where CPT code 82365 fits into diagnostic workflows and payer interactions. Data not available in the input: specific payer policy details, reimbursement rates, associated taxonomies, and ICD-10 diagnoses.
Billing Code Overview
CPT code 82365 describes an infrared spectroscopic analysis of a calculus or stone to determine its chemical composition. The analysis applies to stones originating from the kidney, ureter, bladder, or gall bladder and identifies constituents such as calcium, carbonate, cystine, magnesium, oxalate, phosphates, and urates, with calcium oxalate noted as the most common component.
Service Type: Laboratory analysis — qualitative/quantitative composition testing using infrared spectroscopy
Typical Site of Service: Clinical laboratory, hospital laboratory, or reference diagnostic laboratory
Data not available in the input for associated taxonomies, specific ICD-10 diagnoses, and related codes.
Clinical & Coding Specifications
Clinical Context
A 45-year-old adult presents to the emergency department with acute flank pain, hematuria, and nausea. Non-contrast CT of the abdomen/pelvis identifies a 6 mm radiopaque calculus within the proximal ureter and the patient undergoes ureteroscopy with stone extraction. Retrieved stone fragments are submitted to the clinical laboratory for composition analysis. In the laboratory, a trained analyst performs infrared spectroscopic analysis to determine stone composition (for example, calcium oxalate, calcium phosphate, uric acid, cystine, or struvite). Results are reported to the ordering urologist and included in the patient record to guide metabolic evaluation and future prevention strategies. Typical site of service is the hospital outpatient laboratory, hospital inpatient laboratory, or an independent clinical laboratory receiving surgical specimens from urology or general surgery procedures.
Coding Specifications
| Modifier | Description | When to Use |
|---|---|---|
26 | Professional component | Use when reporting only the professional (interpretation) portion if the laboratory separates technical and professional components. |
TC | Technical component | Use when reporting only the technical component (equipment, labor) if billed separately by the performing laboratory. |