Summary & Overview
CPT 99000: Specimen Preparation and Transport from Office
CPT code 99000 designates the in-office preparation and/or transport of a clinical specimen to an outside testing laboratory. This administrative and logistical service supports diagnostic workflows by ensuring specimens are properly packaged, labeled, and sent for analysis. As a nationally recognized CPT code, 99000 affects billing for outpatient and office-based practices that rely on external laboratories for diagnostic testing, influencing practice operations and claims submission.
Key payers in this overview include Aetna, Blue Cross Blue Shield, Cigna Health, UnitedHealthcare, and Medicare. Readers will find a concise explanation of the code's clinical and operational role, common billing contexts, and the typical sites of service where the code is used. The publication summarizes available benchmarks and payer coverage considerations where present and highlights areas where input data is not available.
The article provides practical context for coding staff, billing professionals, and practice managers seeking to classify specimen handling services correctly. It does not offer clinical guidance or directives for providers. Data not available in the input is explicitly noted where applicable.
Billing Code Overview
CPT code 99000 covers the in-office preparation and/or transport of a specimen to an outside testing laboratory. This procedure code is used when clinical office staff perform tasks such as labeling, packaging, and arranging transport for specimens collected during a patient visit.
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Service type: Specimen preparation and transport services
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Typical site of service: Office-based settings where specimens are collected and sent to external laboratories, including physician offices, outpatient clinics, and other ambulatory care locations.
Data not available in the input.
Clinical & Coding Specifications
Clinical Context
A typical patient scenario involves a patient visiting a primary care or outpatient specialty clinic who requires laboratory testing for diagnosis or monitoring. The clinician collects a blood, urine, swab, or other specimen in the office, prepares the specimen per laboratory requirements (labeling, aliquoting, adding preservative or transport medium), and either ships or transports the specimen to an external reference laboratory the same day. Example: a 45-year-old patient presents with symptoms of urinary tract infection; the clinician performs a midstream urine collection, documents patient identifiers and collection time, prepares the urine specimen in an appropriate transport container with preservative, places it in a courier bag with requisition, and sends it to an outside microbiology laboratory for culture and sensitivity testing. Typical workflow steps include patient identification and consent, specimen collection, proper labeling and documentation, specimen stabilization or preservation, completion of laboratory requisition, packaging per shipping regulations, and handoff to office courier or external transport.
Coding Specifications
| Modifier | Description | When to Use |
|---|---|---|
90 | Reference (Outside) Laboratory | When the laboratory analysis is performed by an outside/reference laboratory rather than the billing provider’s lab. |
TC |