Iron
Relative Value Units (RVUs)
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Clinical Information
When to Use
Quantitative measurement of iron level in serum
Common Scenarios
Documentation Requirements
- Order from physician required
- Test results documented
- Normal range: 60-170 mcg/dL (varies by age/gender)
- Clinical interpretation if applicable
Coding Guidelines
Common Modifiers
Bundling Rules
- Iron measurement
- May be billed with ferritin (82728) and TIBC (83550) on same day
Exclusions
- Do not bill if included in iron panel
Coding Notes
Clinical scenarios
- Order from physician required
- Test results documented
- Normal range: 60-170 mcg/dL (varies by age/gender)
- Order from physician required
- Test results documented
- Normal range: 60-170 mcg/dL (varies by age/gender)
- Order from physician required
- Test results documented
- Normal range: 60-170 mcg/dL (varies by age/gender)
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Code Details
Medicare Pricing
PFSRVU Breakdown
OPPS Details
National Limit: $6.47
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Get instant answers about 83540 - pricing, bundling rules, or billing questions.
Ask a QuestionFrequently Asked Questions
CPT 83540 is the billing code for "Iron". Quantitative measurement of iron level in serum
CPT 83540 has a total RVU of 0.51, broken down as: Work RVU 0.05, Practice Expense RVU 0.45, and Malpractice RVU 0.01. RVUs (Relative Value Units) determine Medicare reimbursement rates.
Key documentation requirements for CPT 83540 include: Order from physician required; Test results documented; Normal range: 60-170 mcg/dL (varies by age/gender); Clinical interpretation if applicable. Missing or incomplete documentation is a leading cause of claim denials for this code.
Bundling considerations for CPT 83540: Iron measurement. May be billed with ferritin (82728) and TIBC (83550) on same day Use an NCCI bundling checker to verify specific code combinations before billing.
Common modifiers for CPT 83540 include: 26 (Professional component only (interpretation)), TC (Technical component only (performance)), 91 (Repeat clinical diagnostic laboratory test, same day). Modifiers indicate special circumstances and can affect reimbursement or prevent claim denials.
The typical time requirement for CPT 83540 is Automated testing - results typically available within hours. Time-based codes require documentation of the actual time spent providing the service.