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Test ID: TUMOR    
Chromosome Analysis, Solid Tumors

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Test Classification Provides information regarding the medical device classification for laboratory test kits and reagents. Tests may be classified as cleared or approved by the US Food and Drug Administration (FDA) and used per manufacturer's instructions, or as products that do not undergo full FDA review and approval, and are then labeled as an Analyte Specific Reagent (ASR), Investigation Use Only (IUO) product, or a Research Use Only (RUO) product.

This test was developed and its performance characteristics determined by Mayo Clinic in a manner consistent with CLIA requirements. This test has not been cleared or approved by the U.S. Food and Drug Administration.

CPT Code Information Provides guidance in determining the appropriate Current Procedural Terminology (CPT) code(s) information for each test or profile. The listed CPT codes reflect Mayo Medical Laboratories interpretation of CPT coding requirements. It is the responsibility of each laboratory to determine correct CPT codes to use for billing.

88239-Tissue culture for tumor

88291-Interpretation and report

88299-Unlisted cytogenetic study (Refer to patient report to apply the appropriate CPT code below in place of this unlisted cytogenetic study CPT code)

Based on the total number of cells analyzed and counted, MML would recommend the following:

Chromosome analysis with less than 5 cells; CPT Code 88261 w/ modifier 52

Chromosome analysis with 5 to 14 cells; CPT Codes 88261, 88285

Chromosome analysis with 15 to 19 cells; CPT Code 88262

Chromosome analysis with 20 to 25 cells; CPT Code 88264

Chromosome analysis with more than 25 cells; CPT Codes 88264, 88285

LOINC® Code Information Provides guidance in determining the Logical Observation Identifiers Names and Codes (LOINC) values for the result codes returned for this test or profile.

Result IDReporting NameLOINC Code
16336Specimen IDN/A
16156Order DateN/A
G_471Reason for Referral42349-1
50476Banding Methods62359-5
16166Report DateN/A

LOINC and CPT codes are provided by the performing laboratory.