Summary & Overview
CPT 88314: Special Stain Interpretation on Frozen Tissue Block
CPT code 88314 represents the special stain procedure, including interpretation and report, for histochemical stains on frozen tissue blocks. This code is a critical component of surgical pathology, enabling pathologists to identify specific cellular features and disease markers that are not visible with standard staining techniques. The procedure is typically performed in laboratory settings and is essential for diagnosing a range of conditions, including various neoplasms and melanomas.
Major national payers covering this code include Aetna, Blue Cross Blue Shield, Cigna Health, UnitedHealthcare, and Medicare. The publication provides a comprehensive overview of payer coverage, billing practices, and clinical context for 88314. Readers will gain insights into current policy updates, reimbursement benchmarks, and the role of special stains in surgical pathology. The analysis also highlights relevant modifiers and associated taxonomies, offering a clear understanding of how this code fits into broader laboratory medicine and pathology workflows.
This summary serves as a resource for healthcare professionals, laboratory administrators, and policy analysts seeking to understand the national landscape for CPT code 88314, including payer coverage, clinical applications, and billing considerations.
CPT Code Overview
CPT code 88314 is used to report a special stain procedure, including interpretation and report, specifically for a histochemical stain performed on a frozen tissue block. This code is listed separately in addition to the code for the primary procedure. The service falls under surgical pathology procedures and is typically performed in a laboratory setting (Place of Service 81). Special stains are essential for identifying specific cellular components or microorganisms, aiding in accurate diagnosis and treatment planning.
Clinical & Coding Specifications
Clinical Context
A patient presents with a suspicious skin lesion, and a surgical excision is performed. During the procedure, a frozen tissue block is prepared in the laboratory for immediate evaluation. To aid in diagnosis, a histochemical special stain is applied to the frozen tissue block. The pathologist interprets the stained slide and provides a report, which assists in determining the nature of the lesion, such as distinguishing between benign and malignant neoplasms or identifying melanoma. This workflow is typical in surgical pathology when rapid intraoperative decisions are needed.
Coding Specifications
-
Modifier
26: Used to indicate the professional component, which covers the pathologist's interpretation and report of the special stain. -
Modifier
TC: Used to indicate the technical component, which covers the laboratory's performance of the special stain on the frozen tissue block.
| Modifier Code | Description |
|---|---|
26 | Professional Component |
TC | Technical Component |
- Associated Provider Taxonomies:
| Taxonomy Code | Specialty Name |
|---|---|
207ZP0102X | Anatomic Pathology |
207ZP0105X | Cytopathology |
207ZP0104X | Clinical Pathology/Laboratory Medicine |
These taxonomies represent providers specializing in pathology, including anatomic, cytopathology, and clinical laboratory medicine.
Related Diagnoses
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C44.99: Other specified malignant neoplasm of skin- Relevant for cases where a skin lesion is suspected to be a malignant neoplasm, requiring special stains for diagnosis.
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D49.2: Neoplasm of unspecified behavior of bone, soft tissue, and skin- Used when the behavior of a neoplasm is unclear, and special stains help clarify the diagnosis.
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D03.9: Melanoma in situ, unspecified- Indicates early-stage melanoma, where special stains assist in confirming the diagnosis on frozen tissue.
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C43.9: Malignant melanoma of skin, unspecified- Applied when melanoma is suspected or confirmed, and special stains are used to identify melanoma cells.
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D48.5: Neoplasm of uncertain behavior of skin- Used for skin lesions with uncertain malignant potential, where histochemical stains aid in further characterization.
Related CPT Codes
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88314: Special stain including interpretation and report; histochemical stain on frozen tissue block (List separately in addition to code for primary procedure)- This is the primary code for the special stain procedure performed on frozen tissue blocks during surgical pathology.
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0758T: Digitization of slides prepared for a frozen tissue histochemical special stain exam (+88314)- This code is used when slides prepared for a frozen tissue histochemical special stain exam are digitized. It is commonly used in conjunction with
88314to document the digitization process as an add-on service.
- This code is used when slides prepared for a frozen tissue histochemical special stain exam are digitized. It is commonly used in conjunction with
In clinical workflow, 88314 is used for the special stain procedure, and 0758T may be used together when digitization of the stained slides is performed. These codes are not alternatives but are often billed together when both services are provided.
National Reimbursement Benchmarks
Medicare's national mean rate for CPT code 88314 is $56.85, which is slightly lower than the BUCA (average commercial) mean rate of $61.33. Commercial payers such as Blue Cross Blue Shield and UnitedHealth Group report higher mean rates, with Blue Cross Blue Shield at $68.93 and UnitedHealth Group at $65.05.
Rate dispersion, measured by the difference between the 75th and 25th percentiles, varies across payers. Aetna and BUCA exhibit tighter ranges ($24.12 and $34.17, respectively), while Blue Cross Blue Shield and Medicare show the widest dispersions ($58.00 and $61.00, respectively). This indicates that Blue Cross Blue Shield and Medicare have greater variability in reimbursement rates for this code compared to other payers.
The table and chart below present the full breakdown of national benchmarks for CPT code 88314 across all major payers.
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