81329 Smn1 gene dos/deletion alys
Also known as: SMN1 copy number test, spinal muscular atrophy screening
Survival Motor Neuron 1 (SMN1) gene dosage and deletion analysis to detect homozygous or compound heterozygous deletions in spinal muscular atrophy.
In Plain Language
Muscle weakness genetic test; Spinal muscular atrophy screening
Clinical Context
Detects SMN1 deletions and copy number reductions causing spinal muscular atrophy. Critical for newborn screening and carrier detection.
RVU Information
CPT 81329 does not have a physician work RVU assigned by CMS. Reimbursement for this code is determined by payer-specific fee schedules.
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
This code has a work RVU of 0.00, meaning it does not have a physician work component assigned by CMS. In the Pathology & Lab category, 94% of codes share this characteristic.
Specialties
Frequently Asked Questions
What is CPT code 81329?
CPT 81329 (Smn1 gene dos/deletion alys) is a Pathology & Lab code. Survival Motor Neuron 1 (SMN1) gene dosage and deletion analysis to detect homozygous or compound heterozygous deletions in spinal muscular atrophy.
Who uses CPT code 81329?
CPT 81329 is used by Pathology, Neurology, Genetics. Detects SMN1 deletions and copy number reductions causing spinal muscular atrophy. Critical for newborn screening and carrier detection.
When is CPT 81329 used?
Detects SMN1 deletions and copy number reductions causing spinal muscular atrophy. Critical for newborn screening and carrier detection.
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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.