88314 Histochemical stains add-on
Also known as: histochemical stains add-on, immunochemistry add-on
Histochemical stain, immunochemical analysis, or immunologic procedure performed on tissue as an add-on to base pathology examination.
In Plain Language
special staining added to pathology; immune marker staining
Clinical Context
Add-on procedure when additional specialized staining beyond standard examination is needed for diagnostic confirmation.
RVU Breakdown
| Work RVU | 0.44 |
| Total RVU | 0.44 |
Est. Medicare Payment
National estimate based on 2026 CMS PFS Conversion Factor ($33.40). Actual payment varies by locality (GPCI adjustment).
Billing & Documentation
Lab and pathology codes require an order from the treating provider with clinical indication. For molecular pathology and genetic testing, document the specific analytes tested and clinical rationale.
How This Code Compares
With a work RVU of 0.44, this code ranks in the 34th percentile among Pathology & Lab codes — 1.5x below the median (0.68). The highest wRVU in this category is 2.78.
Specialties
Frequently Asked Questions
What is CPT code 88314?
CPT 88314 (Histochemical stains add-on) is a Pathology & Lab code. Histochemical stain, immunochemical analysis, or immunologic procedure performed on tissue as an add-on to base pathology examination.
Who uses CPT code 88314?
CPT 88314 is used by Pathology, Laboratory. Add-on procedure when additional specialized staining beyond standard examination is needed for diagnostic confirmation.
When is CPT 88314 used?
Add-on procedure when additional specialized staining beyond standard examination is needed for diagnostic confirmation.
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CPT® is a registered trademark of the American Medical Association. Data sourced from CMS Physician Fee Schedule RVU26A. Descriptions, synonyms, and clinical context are original content by RVU Edge.