Summary & Overview
CPT 81466: Genome Sequence Analysis for Heritable Disorders
CPT code 81466 represents genome sequence analysis, a critical tool in the diagnosis and management of unexplained constitutional or heritable disorders. This code is increasingly important as genetic testing becomes a cornerstone of precision medicine, enabling clinicians to identify chromosomal abnormalities and congenital syndromes that may not be detectable through traditional methods. The procedure is typically performed in laboratory settings and is relevant for patients presenting with conditions such as chromosomal abnormalities, congenital malformation syndromes, and Down syndrome.
Blue Cross Blue Shield is a key payer covering this service, reflecting broader national trends in payer coverage for advanced genetic testing. Readers will gain insight into the clinical context of genome sequencing, relevant ICD-10 diagnoses, and related CPT codes that may be used in conjunction with or as alternatives to 81466. The publication also addresses common billing modifiers and associated medical genetics taxonomies, providing a comprehensive overview of coding, coverage, and policy considerations for genome sequence analysis. This summary is designed to inform healthcare professionals, laboratory administrators, and policy stakeholders about the evolving landscape of genetic testing reimbursement and clinical application.
CPT Code Overview
CPT code 81466 is used to report genome sequence analysis for patients with unexplained constitutional or heritable disorders or syndromes. This procedure falls under the genetic testing service type and is typically performed in a laboratory setting (Place of Service 81). Genome sequencing provides comprehensive information about a patient's genetic makeup, supporting clinical decision-making for complex or rare conditions.
Clinical & Coding Specifications
Clinical Context
A patient presents with unexplained constitutional or heritable disorders, such as developmental delays, congenital malformations, or suspected chromosomal abnormalities. The clinical workflow involves a referral to a medical genetics specialist, who determines that comprehensive genome sequencing is necessary to identify potential genetic causes. The procedure is performed in a laboratory setting (Place of Service 81), where the patient's DNA is sequenced and analyzed for variants that may explain the clinical presentation. Results are interpreted by a qualified genetics professional and reported back to the referring provider for further management.
Coding Specifications
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Modifiers:
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26: Used when reporting only the professional component (interpretation of results) of the procedure. - Modifier
TC: Used when reporting only the technical component (performance of sequencing and analysis) of the procedure. - Modifier
59: Used to indicate a distinct procedural service when multiple procedures are performed and need to be reported separately.
- Modifier
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Provider Taxonomies:
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