Potassium, serum
Relative Value Units (RVUs)
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Clinical Information
When to Use
Quantitative measurement of potassium level in blood
Common Scenarios
Documentation Requirements
- Order from physician required
- Test results documented
- Normal range: 3.5-5.0 mEq/L
- Clinical interpretation if applicable
Coding Guidelines
Common Modifiers
Bundling Rules
- Potassium measurement
- May be billed with other chemistry tests on same day
Exclusions
- Do not bill if included in metabolic panel (80047, 80053)
Coding Notes
Clinical scenarios
- Order from physician required
- Test results documented
- Normal range: 3.5-5.0 mEq/L
- Order from physician required
- Test results documented
- Normal range: 3.5-5.0 mEq/L
- Order from physician required
- Test results documented
- Normal range: 3.5-5.0 mEq/L
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Code Details
Medicare Pricing
PFSRVU Breakdown
OPPS Details
National Limit: $4.76
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Get instant answers about 84132 - pricing, bundling rules, or billing questions.
Ask a QuestionFrequently Asked Questions
CPT 84132 is the billing code for "Potassium, serum". Quantitative measurement of potassium level in blood
CPT 84132 has a total RVU of 0.29, broken down as: Work RVU 0.03, Practice Expense RVU 0.25, and Malpractice RVU 0.01. RVUs (Relative Value Units) determine Medicare reimbursement rates.
Key documentation requirements for CPT 84132 include: Order from physician required; Test results documented; Normal range: 3.5-5.0 mEq/L; Clinical interpretation if applicable. Missing or incomplete documentation is a leading cause of claim denials for this code.
Bundling considerations for CPT 84132: Potassium measurement. May be billed with other chemistry tests on same day Use an NCCI bundling checker to verify specific code combinations before billing.
Common modifiers for CPT 84132 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 84132 is Automated testing - results typically available within hours. Time-based codes require documentation of the actual time spent providing the service.