[Date] [Insurance Company] [Address 1] [Address 2] [City State Zip] Re: [Patient Name] Insurance ID: [ID #] DOB: XX/XX/XXXX To whom it may concern, I have given serious consideration towards this patient’s underlying diagnosis and while I think that it is highly likely that [he/she] has a genetic syndrome, at the present time I cannot recognize a specific entity. The overall clinical picture of an individual with [symptomatology, such as developmental disabilities and dysmorphic features] raises concern for a multi-gene disorder such as would be found in a structural chromosome aberration (e.g., a chromosome deletion or duplication). Currently, the most comprehensive and cost-effective method for detecting deletions and duplications of genetic material is via the whole genome chromosomal microarray analysis. Supporting this, the American Society of Human Genetics recently published a policy statement recommending that microarray analysis be performed as a first-tier diagnostic test for individuals, such as my patient, with developmental disabilities or congenital anomalies1. In addition, the results of chromosomal microarray analysis have been shown to significantly impact medical management2. I feel that the microarray test is necessary for my patient to determine the nature of [his/her] condition and appropriate medical management and therapies in a timely fashion. In the absence of this testing, I will not be able to provide a diagnosis or appropriate management recommendations for this patient’s care. Please note that this test is performed for clinical management in a laboratory that is CLIA approved for high complexity testing. Please take these factors into consideration and provide the coverage for the microarray test that I am recommending for this patient. Authorization should be obtained for: Test name: Cytogenomic SNP Microarray Facility: ARUP Laboratories CPT codes: [CPT codes] Diagnosis code: [Diagnosis code] Thank you for your time and attention to this matter. Sincerely, From www.aruplab.com Revision 1 Created: 09/30/2011 [Name of Ordering Physician] References: 1. Miller DT, et al. Consensus statement: chromosomal microarray is a first-tier clinical diagnostic test for individuals with developmental disabilities or congenital anomalies. Am J Hum Genet 2010;86(5): 749-764. 2. Coulter BA, et al. Chromosomal microarray testing influences medical management. Genet Med 2011;13(9): 770-776. From www.aruplab.com Revision 1 Created: 09/30/2011