Summary & Overview
CPT 0841T: Whole-Slide Image Digitization for Intraoperative Pathology
CPT code 0841T is an add‑on code for clinical staff work to scan and digitize whole‑slide images from glass microscope slides used for immediate or subsequent pathologic diagnosis. It is reported one unit per corresponding intraoperative consultation represented by CPT code 88331, which covers frozen‑section analysis of an initial tissue block. The code clarifies billing for the digitization step that supports intraoperative pathology workflows and emerging digital pathology practices.
Key payers covered in this analysis include Aetna, Blue Cross Blue Shield, Cigna, UnitedHealthcare, and Medicare. The summary presents a national perspective on how the code defines the service, the clinical context in which it is used (intraoperative frozen‑section consultations in hospital or pathology lab settings), and the administrative implications for billing add‑on digitization work.
Readers will find benchmarks and policy context relevant to adoption of digital pathology workflows, an explanation of how the code maps to the intraoperative consultation process, and the operational settings where the service is performed. The content also covers payer coverage considerations and coding alignment with existing intraoperative pathology codes. Data not available in the input for specific modifiers, taxonomies, ICD‑10 pairings, and related codes are noted where applicable.
Billing Code Overview
CPT code 0841T describes clinical staff work performed to scan and digitize whole–slide images from glass microscope slides for immediate or later pathologic diagnosis. This is an add-on clinical digitization service reported in conjunction with intraoperative pathology consultation on frozen‑section slides.
Service Type: Pathology digital imaging / clinical staff digitization work
Typical Site of Service: Hospital or surgical pathology laboratory during intraoperative frozen‑section consultations
Data not available in the input.
Clinical & Coding Specifications
Clinical Context
A 62-year-old patient undergoes excision of a suspicious skin lesion in the operating room. An intraoperative pathology consultation (frozen section) is requested to determine margin status and guide immediate surgical management. Clinical staff scan and digitize the frozen-section slides to generate whole-slide images that the pathologist reviews on a workstation or transmits to a remote pathologist for rapid interpretation. The workflow: specimen collection → frozen-section processing by clinical laboratory staff → slide creation and staining → digitization of the frozen slides using a whole-slide scanner (billing add-on 0841T reported per unit linked to one unit of consultation code 88331) → pathologist review of digital images for an immediate diagnosis → communication of results to the surgical team to guide further resection or closure. Typical site of service is an operating room or hospital-based pathology laboratory supporting intraoperative consultations.
Coding Specifications
| Modifier | Description | When to Use |
|---|---|---|
22 | Increased procedural services | When work required to scan/digitize slides is substantially greater than typical and documentation supports increased complexity or time. |