CPT code 99001 describes the provider preparing a specimen collected from a patient at a location other than the provider’s office and sending it to an outside laboratory for analysis; this represents a specimen preparation and handling service, typically initiated at an off-site collection site or patient residence and completed by the provider before external laboratory shipment, and is classified as a specimen transport/preparation service with typical sites of service including off-site collection locations, patient homes, or other non-office settings.

For related coverage guidance, see recent payer policy updates: Home Health, Skilled, and Custodial Care Services (for Idaho Only), Private Duty Nursing Services (for Florida Only), Private Duty Nursing Services.