CPT 87169 Parasitology Exam Reimbursement

CPT code 87169 denotes a macroscopic parasitology laboratory examination performed without a microscope to identify parasites associated with human disease, such as tapeworms. This procedural code matters nationally because accurate identification of parasitic infections informs patient management, public health reporting, and laboratory service billing across inpatient and outpatient settings. It is relevant to hospital laboratories, reference labs, and clinical diagnostic services that handle gross parasitic specimens.

Key payers discussed include Aetna, Blue Cross Blue Shield, Cigna Health, UnitedHealthcare, and Medicare. Readers will find an overview of clinical context for macroscopic parasitology exams, common sites of service, and typical use cases. The publication provides benchmarks and billing context where available, clarifies coding scope for laboratory workflows, and notes payer coverage patterns and policy considerations at a national level. Data not available in the input is acknowledged where applicable.

This summary equips laboratory managers, billing professionals, and policy analysts with a concise reference on the purpose and placement of CPT code 87169 within laboratory services, and highlights areas—such as documentation and site of service—that commonly affect coding and reimbursement discussions.

Billing Code Overview

CPT code 87169 describes a laboratory examination of a parasite associated with human disease performed without the use of a microscope. The service involves a laboratory analyst visually inspecting parasite material to identify organisms such as tapeworms or other macroparasites.

Service type: Parasitology examination, macroscopic visual inspection
Typical site of service: Clinical laboratory or laboratory section within a hospital or outpatient facility

Clinical Context

A patient presents to an outpatient infectious disease clinic or hospital laboratory with symptoms suggestive of a parasitic infection (for example, unexplained gastrointestinal pain, diarrhea, weight loss, eosinophilia, or travel history to endemic regions). A clinician collects a stool specimen, expelled tapeworm segment, or other relevant specimen and sends it to the clinical laboratory for identification. Laboratory personnel perform a gross, unaided visual examination of the specimen to identify macroscopic parasites or segments (for example, adult tapeworm proglottids) without the use of a microscope. The workflow includes specimen receipt and accessioning, gross inspection and documentation of parasite morphology, photographic documentation if required, recording of findings in the laboratory information system, and communication of results to the ordering provider. Typical sites of service are hospital laboratories, outpatient reference laboratories, public health laboratories, and some inpatient laboratory services where macroscopic parasite identification is required.

Coding Specifications

Modifier	Description	When to Use
`26`	Professional component	Use when billing only the professional interpretation component performed by a pathologist or laboratory physician reviewing findings.
`TC`

Taxonomy Code	Specialty	Notes
207RX0200X	Infectious Disease	Physicians who order and interpret parasitology testing and manage parasitic infections.
207K00000X	Pathology	Pathologists supervising laboratory parasite identification and interpretation.
207L00000X	Clinical Laboratory	Clinical laboratory technologists and managers performing gross specimen examination.
208D00000X	Pediatrics	Pediatricians who may order parasitology testing for children with suspected parasitic infections.
207P00000X	Microbiology	Laboratory microbiologists involved in parasitology identification and confirmatory testing.

Related Diagnoses

ICD-10 Code	Description	Clinical Relevance
`A07.2`	Enteritis due to protozoa	Used when protozoan parasites are suspected as the cause of enteric symptoms; stool or specimen examination is indicated.
`A08.4`	Viral intestinal infection, unspecified	Not directly parasitic but may be considered in the differential diagnosis for gastroenteritis symptoms; laboratory testing distinguishes causes.
`B76.0`	Ancylostomiasis [hookworm]	Example of helminth infection where macroscopic or microscopic parasite identification may be performed.
`B68.0`	Taeniasis due to Taenia saginata	Directly relevant when tapeworm segments are observed grossly and identified without microscopy.
`B69`	Schistosomiasis	Parasitic infection where identification may begin with gross specimen inspection and proceed to microscopy or serology.
`R19.7`	Diarrhea, unspecified	Symptom code often accompanying parasitic infections prompting stool parasite examination.
`R21`	Rash and other nonspecific skin eruption	Some parasitic infections have cutaneous manifestations that lead to specimen collection and parasitology testing.

Related CPT Codes

CPT Code	Description	Relationship to This Procedure
`87070`	Culture, bacterial; any other source except urine, blood or stool, with isolation and presumptive identification of isolates	May be performed when secondary bacterial infection is suspected or when stool culture is indicated alongside parasite exam.
`87177`	Parasite, wet mount for detection of motile parasites (e.g., trichomonas)	Performed for microscopic detection of motile protozoa; complements gross parasite exam when microscopy is required.
`87186`	Identification, protozoa, by immunoassay techniques	Used when laboratory performs immunoassay-based identification of protozoan parasites following gross exam or when microscopy is insufficient.
`87250`	Scraping or washing for direct smear and microscopic examination of tissue or body fluid for organisms including KOH preps	Performed when microscopic examination of tissue or specimens is required in addition to gross evaluation.
`88305`	Level IV surgical pathology, gross and microscopic examination	Used when tissue containing parasites requires formal pathology evaluation including microscopic analysis after gross identification.

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Summary & Overview

CPT 87169: Parasitology Examination Without Microscope