83735 Assay of magnesium
Also known as: serum magnesium, magnesium assay
Quantitative measurement of magnesium concentration in serum, plasma, or urine using atomic absorption spectrophotometry or ion-selective electrode methods.
In Plain Language
magnesium level test; mineral measurement
Clinical Context
Assessment of magnesium status in evaluation of muscle cramps, cardiac arrhythmias, and neuromuscular disorders. Important electrolyte in critical illness monitoring.
RVU Information
CPT 83735 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 83735?
CPT 83735 (Assay of magnesium) is a Pathology & Lab code. Quantitative measurement of magnesium concentration in serum, plasma, or urine using atomic absorption spectrophotometry or ion-selective electrode methods.
Who uses CPT code 83735?
CPT 83735 is used by Pathology, Critical Care, Internal Medicine. Assessment of magnesium status in evaluation of muscle cramps, cardiac arrhythmias, and neuromuscular disorders. Important electrolyte in critical illness monitoring.
When is CPT 83735 used?
Assessment of magnesium status in evaluation of muscle cramps, cardiac arrhythmias, and neuromuscular disorders. Important electrolyte in critical illness monitoring.
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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.