Summary & Overview
CPT 88172: Immediate Cytologic Evaluation of FNA Specimen
CPT code 88172 covers immediate cytologic evaluation of fine-needle aspiration specimens performed by a laboratory analyst to assess specimen adequacy at the time of aspiration. This point-of-care procedure helps determine whether sufficient diagnostic material was collected, which can reduce repeat procedures and expedite diagnosis for patients undergoing FNA for mass lesions or nodules. Nationally, rapid onsite evaluation is an important adjunct to cytopathology workflows and affects utilization patterns across outpatient and ambulatory procedure settings.
Key payers discussed include Aetna, Blue Cross Blue Shield, Cigna Health, UnitedHealthcare, and Medicare. The overview addresses common payer coverage considerations and how this service is categorized across outpatient clinics, physician offices, and radiology procedure suites.
Readers will learn the clinical context for use of 88172, the typical sites of service, the role this immediate evaluation plays in specimen adequacy, and where to find additional billing and coding guidance. Data not available in the input for associated taxonomies, ICD-10 diagnoses, and related codes is noted where relevant. This summary is intended as a national reference for stakeholders seeking concise code-level context, payer scope, and service definition.
Billing Code Overview
CPT code 88172 describes the performance of immediate cytologic evaluation of a specimen obtained by fine-needle aspiration (FNA). A laboratory analyst examines the aspirate at the point of collection to determine whether an adequate sample for diagnosis has been obtained.
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Service type: Immediate cytologic evaluation of FNA specimen (rapid onsite evaluation)
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Typical site of service: Outpatient clinics, physician offices, interventional radiology suites, and procedure areas where fine-needle aspiration is performed
Clinical & Coding Specifications
Clinical Context
A 56-year-old patient presents to an outpatient clinic with a palpable thyroid nodule. The endocrinologist performs an ultrasound-guided fine needle aspiration (FNA) to obtain cellular material for cytologic diagnosis. Immediately after each pass, a cytotechnologist in the procedure room prepares and performs a rapid on-site evaluation (ROSE) of the FNA smear to determine specimen adequacy and whether additional passes are needed. The procedure is performed in an ambulatory surgical center or outpatient clinic procedure room; specimens that are satisfactory are placed in appropriate fixative and sent to the pathology laboratory for formal cytopathology reporting. The documentation includes the number of passes, on-site adequacy assessment, and communication between the pathologist/cytotechnologist and the proceduralist regarding the need for additional sampling.
Coding Specifications
| Modifier | Description | When to Use |
|---|---|---|
26 | Professional component | Use when reporting only the professional interpretation component if the laboratory technical component is billed separately. |
TC | Technical component | Use when reporting only the technical component (laboratory performance) of a service. |