Summary & Overview
CPT 84377: Multiple Sugars (Saccharide) Detection in Urine or Stool
CPT code 84377 denotes a laboratory diagnostic test to detect the presence of multiple sugars or saccharides in patient specimens, most commonly urine or stool. Nationally, this code is relevant for clinical laboratories, hospital labs, and outpatient testing sites where screening for reducing sugars informs diagnosis and treatment of metabolic, infectious, and gastrointestinal conditions. Reporting is per specimen tested.
Key payers covered in this analysis include Aetna, Blue Cross Blue Shield, Cigna Health, UnitedHealthcare, and Medicare. Readers will find a concise overview of clinical context for the test, typical sites of service, and the operational implications of per-specimen reporting. The publication also summarizes available benchmarks, common modifier usage (listed separately), and policy considerations affecting coverage and billing for laboratory diagnostic services.
This summary serves clinicians, billing professionals, and policy analysts seeking a clear national perspective on CPT code 84377, including what the code represents, where it is performed, and what to expect in payer coverage and billing workflows. Data not available in the input is noted as such in relevant sections.
Billing Code Overview
CPT code 84377 reports a laboratory test performed by a lab analyst to determine the presence of multiple sugars (saccharides) in a patient specimen. The test is typically applied to urine or stool specimens and is reported once for each specimen analyzed. This code describes a laboratory diagnostic service that screens for the presence of reducing sugars or other saccharides in body fluids.
Service Type: Laboratory diagnostic test
Typical Site of Service: Clinical laboratory, hospital laboratory, or outpatient specimen collection site
Clinical & Coding Specifications
Clinical Context
A 6-year-old child presents to a pediatric clinic with a 2-week history of loose, foul-smelling stools and failure to gain expected weight. The clinician suspects a carbohydrate malabsorption disorder (such as lactose intolerance) and collects a fresh stool specimen for a qualitative reducing substances test to detect multiple sugars. The specimen is sent to the outpatient clinical laboratory. A medical technologist or lab analyst performs 84377 on the stool specimen to determine the presence of reducing sugars. Results are reported in the electronic laboratory information system and communicated to the ordering clinician for correlation with clinical findings and potential dietary management. Billing is reported per specimen tested using 84377; if multiple stool samples are analyzed on separate days, each specimen is reported separately.
Coding Specifications
| Modifier | Description | When to Use |
|---|---|---|
00 | No modifier applicable/unspecified | Use when no specific modifier applies and payer requires a neutral placeholder. |
11 |