Summary & Overview
CPT 0842T: Digital Pathology Slide Digitization for Intraoperative Consultation
CPT code 0842T is an add-on code for clinical staff work to scan and digitize whole–slide images from glass microscope slides to support pathologic diagnosis, most commonly used with intraoperative frozen-section consultations. The code enables reporting of the digitization task performed for one unit of the consultation code +88332 when additional tissue blocks require imaging. Nationally, the code reflects the growing integration of digital pathology into surgical workflows, supporting rapid remote or local diagnosis and documentation of intraoperative findings.
Key payers addressed in this analysis include Aetna, Blue Cross Blue Shield, Cigna Health, UnitedHealthcare, and Medicare. Readers will find a concise overview of the code’s clinical purpose and service setting, how it interacts with intraoperative pathology consultation billing, and what to expect in payer coverage discussions. The publication outlines benchmarks for use and reporting expectations, summarizes relevant policy and coding updates affecting digital pathology add-on services, and provides clinical context for when digitization is reported alongside frozen-section consultations.
This summary is designed for national audiences including billing professionals, pathology department managers, and health policy analysts seeking clear guidance on the role and reporting of 0842T in perioperative pathology workflows. Data not available in the input.
Billing Code Overview
CPT code 0842T describes clinical staff work to scan and digitize whole–slide images from glass microscope slides for immediate or later pathologic diagnosis. This is reported as an add-on code that accompanies an intraoperative consultation on frozen-section slides from an additional tissue block.
Service type: Digital pathology digitization for intraoperative consultation
Typical site of service: Hospital or ambulatory surgical settings where intraoperative frozen-section consultations occur, including operating rooms, pathology laboratories adjacent to surgical suites, and other procedural areas where rapid pathology support is required.
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Clinical & Coding Specifications
Clinical Context
A 62-year-old patient undergoes a breast excision for a suspicious mass. During the operative procedure, the surgeon requests an intraoperative pathology consultation to determine margin status. A tissue block is frozen, sections are prepared on glass slides, and a pathology assistant performs rapid scanning and digitization of the whole-slide images so the pathologist can review images remotely or immediately for diagnosis. The clinical workflow: specimen arrives in frozen section lab → technologist prepares frozen-section slides → clinical staff perform whole-slide scanning/digitization using a slide scanner (+0842T) → pathologist reviews the digitized images for an intraoperative consultation documentable with consultation code +88332 → results communicated to the surgical team for intraoperative decision-making. Typical site of service: hospital operating room, hospital pathology frozen section laboratory, or an on‑site surgical pathology suite supporting immediate intraoperative diagnosis. Typical patient scenario: an operative case requiring frozen-section evaluation for margin assessment, sentinel lymph node evaluation, or confirmation of tissue type where rapid intraoperative diagnosis is needed.
Coding Specifications
| Modifier | Description | When to Use |
|---|---|---|
22 | Increased procedural services | Use when the digitization service required substantially greater effort, time, or technical complexity than usual (document rationale and time). |
52 | Reduced services | Use when the scanning/digitization was partially performed or limited relative to standard service. |
53 | Discontinued procedure | Use when the scanning/digitization process was started but terminated early for patient- or procedure-related reasons. |
XS | Separate structure | Use to indicate that the digitization service was performed on a separate organ/structure from the primary procedure when reporting bundling-sensitive services. |
RT | Right side | Use if laterality reporting is required and the service pertains to the right-sided specimen. |
LT | Left side | Use if laterality reporting is required and the service pertains to the left-sided specimen. |
59 | Distinct procedural service | Use when reporting an identifiable separate service that is not normally reported with the primary procedure (if appropriate per payer guidance). |
76 | Repeat procedure by same physician | Use when the scanning/digitization is repeated by the same group on the same day. |
77 | Repeat procedure by another physician | Use when the scanning/digitization is repeated by a different group/provider on the same day. |
90 | Reference (outside) laboratory | Use when the digitization service is performed by an outside laboratory and billed by the ordering provider. |
| Taxonomy Code | Specialty | Notes |
|---|---|---|
207P00000X | Anatomic Pathology | Pathologists overseeing frozen section and interpretation. |
2080P0002X | Histotechnology | Clinical laboratory/histotechnology staff performing slide preparation and digitization. |
207L00000X | Pathology Assistant | Pathology assistants participating in frozen section workflow and slide handling. |
208D00000X | Clinical Laboratory | Laboratory services staff operating scanning equipment; administrative billing role. |
2086S0122X | Surgical Pathology | Physicians focused on intraoperative consultative surgical pathology. |
Related Diagnoses
| ICD-10 Code | Description | Clinical Relevance |
|---|---|---|
C50.911 | Malignant neoplasm of unspecified site of right female breast | Breast cancer cases frequently require intraoperative frozen sections for margin or sentinel node evaluation; digitized frozen slides facilitate rapid consult. |
C50.912 | Malignant neoplasm of unspecified site of left female breast | Same clinical relevance for left-sided breast malignancies. |
N63 | Unspecified lump in breast | Benign or indeterminate breast masses may undergo excision with intraoperative consultation; digitization supports immediate pathologic assessment. |
R91.8 | Other nonspecific abnormal findings of lung field | Pulmonary wedge resections or nodules may require frozen-section diagnosis intraoperatively; digitization can be used for rapid review. |
C61 | Malignant neoplasm of prostate gland | Prostate surgical specimens occasionally require intraoperative assessment; digitized frozen sections can assist intraoperative decisions. |
Related CPT Codes
| CPT Code | Description | Relationship to This Procedure |
|---|---|---|
+88332 | Intraoperative pathology consultation on frozen section from an additional block (add-on) | Primary associated consultation code: report one unit of +0842T for digitizing slides corresponding to one unit of +88332 when a frozen-section from an additional tissue block is digitized. |
88331 | Intraoperative consultation, frozen section for margin or preliminary diagnosis (first block) | Often reported for the initial frozen-section consultation; +0842T may be reported when digitization is performed in addition to these intraoperative services. |
88342 | Immunohistochemistry, initial single antibody stain | May be ordered intraoperatively or postoperatively to assist diagnosis; performed separately from digitization. |
88305 | Level IV surgical pathology, gross and microscopic examination | Definitive surgical pathology performed after frozen sections; digitized frozen slides (+0842T) support immediate intraoperative decisions but final diagnosis typically involves permanent sections like 88305. |
0001M | Digital pathology whole slide imaging (hypothetical example) | Data not available in the input. |