CPT 88312: Special Stain, Technical Component for Microorganisms
Medicare pays $76 and commercial payers pay $82 on average nationally for this procedure.
CPT code 88312 describes the technical component provided by a laboratory analyst who performs special staining of a specimen for microorganisms (Group I); the service is a special stain (technical processing) typically performed in a clinical laboratory or hospital pathology lab and results in prepared slides that are subsequently interpreted and reported by a qualified pathologist.
For related coverage guidance, see recent payer policy updates: Destruction of Pre-Malignant Skin Lesions, Onychomycosis diagnostic testing and coverage, Treatment of Capillary Malformations (Port Wine Stains).
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National Reimbursement Benchmarks
National mean rates cluster with BUCA’s average commercial rate at $82.4 and Medicare’s mean at $76.2, placing Medicare slightly below the commercial aggregate. The proximity of these means—only $6.2 apart—suggests moderate alignment between a typical commercial benchmark and Medicare for CPT 88312, while individual commercial payers still have distinct central tendencies around those averages.
Dispersion measured by the interquartile range (P75 minus P25) varies meaningfully: Aetna’s IQR is $77.4, Blue Cross Blue Shield’s is $51.9, Cigna’s is $81.3, UnitedHealth Group’s is $47.5, and BUCA’s is $63.1; Medicare’s IQR is $81. Since UnitedHealth Group and Blue Cross Blue Shield have the tightest IQRs ($47.5 and $51.9 respectively), they exhibit the least mid-range variability, while Cigna, Medicare, and Aetna show the widest mid-range spread (roughly $81–$77).