Summary & Overview
CPT 87209: Complex Special Stain for Ova and Parasites
CPT code 87209 represents a complex laboratory staining and evaluation procedure used to detect ova and parasites in primary source specimens, commonly stool. This diagnostic service is important nationally for identifying parasitic infections that affect public health, guide clinical management, and inform infection control and surveillance efforts. Laboratories performing this procedure play a key role in timely diagnosis of gastrointestinal parasitic disease.
Key payers covered in this overview include Aetna, Blue Cross Blue Shield, Cigna Health, UnitedHealthcare, and Medicare. Readers will find a concise explanation of the clinical purpose of the code, typical sites of service, and the kinds of reporting and billing contexts where the procedure is used. The publication provides benchmarks and coding context relevant to laboratory service lines, summarizes common modifiers used with laboratory procedures (input provided), and highlights clinical circumstances that prompt ordering of ova and parasite stains. Policy updates, payer coverage patterns, and local coverage determinations are noted where available; if specific payer policies are not provided, the text flags that data is not available in the input.
This summary is intended for laboratory directors, billing professionals, and clinicians seeking a national overview of the procedural code, its clinical implications, and the operational settings where it is performed.
Billing Code Overview
CPT code 87209 describes a laboratory procedure in which a medical technologist or lab analyst performs and interprets a complex special stain on a primary source specimen (for example, stool) to detect ova and parasites. The service focuses on identifying parasitic organisms or their eggs that may be present in or on a host and derives diagnostic information from morphological staining patterns.
Service type: Complex special stain and microscopic evaluation for ova and parasites
Typical site of service: Clinical laboratory or hospital laboratory, including outpatient laboratory facilities where primary source specimens such as stool are processed and examined.
Clinical & Coding Specifications
Clinical Context
A symptomatic outpatient presents with persistent diarrhea, abdominal cramping, and intermittent low-grade fever after recent international travel. A stool specimen is collected in the clinic and sent to the laboratory. The clinical laboratory performs a complex special stain on the primary stool specimen to identify ova and parasites. The lab analyst prepares and processes the specimen, applies the stain method appropriate for helminth ova or protozoan cysts, examines microscopic slides, documents findings, and issues a report to the ordering clinician. Typical sites of service include hospital laboratories, reference microbiology laboratories, and outpatient clinic or ambulatory surgical center labs that receive primary stool specimens for parasitology testing. Turnaround time depends on lab workflow and urgency; the test may be ordered concurrently with routine ova and parasite microscopy or as a targeted special stain when initial testing is inconclusive or specific organisms are suspected.
Coding Specifications
| Modifier | Description | When to Use |
|---|---|---|
25 | Significant, separately identifiable evaluation and management service by the same physician on the same day of the procedure | Use when an E/M service is rendered on the same day as the lab test and meets E/M documentation requirements |
26 |