CPT 80053: Comprehensive Metabolic Panel (CMP)
CPT 80053 is the comprehensive metabolic panel, a bundle of 14 defined chemistry tests covering glucose, electrolytes, kidney function, and liver enzymes. It is a clinical laboratory service priced under the Medicare Clinical Laboratory Fee Schedule (CLFS), not the Physician Fee Schedule, so it carries no PFS RVUs or dollar amount.
- Code type
- Clinical laboratory panel (chemistry)
- Priced under
- Medicare Clinical Laboratory Fee Schedule (CLFS), not the PFS
- Components
- 14 defined tests, all required
- Frequency notes
- Diagnosis-driven; NCCI bundles component codes and 80048
What is CPT 80053 used for?
CPT 80053 reports a comprehensive metabolic panel (CMP) — a single ordered bundle of 14 blood chemistry tests that together screen glucose, electrolyte and acid-base balance, kidney function, and liver function. It is one of the most frequently ordered lab panels in primary care, used for routine health assessment, monitoring chronic disease, and evaluating medication effects.
Because the panel is defined by the AMA as a fixed set of analytes, you bill the single panel code rather than the individual tests when all 14 are performed. Ordering fewer than 14 means the panel definition is not met and you must report the component codes that were actually run.
How much does Medicare pay for 80053?
This is where labs get tripped up. On the Physician Fee Schedule, 80053 shows status indicator X — statutory exclusion, so it has no RVUs and no PFS dollar amount. That $0 is correct: clinical laboratory tests are not paid on the PFS at all.
Payment instead comes from the Medicare Clinical Laboratory Fee Schedule (CLFS), which prices lab tests using national limitation amounts and, for newer codes, gapfill or crosswalk methodology. The CLFS amount varies by year and is set nationally rather than by locality RVUs. Do not expect the Medicare fee calculator PFS lookup to return a figure — pull the current CLFS rate from your MAC or payer fee file.
What are the 14 components of a CMP?
The AMA requires all 14 of these analytes for 80053. Missing even one means the panel definition is not satisfied:
| Group | Tests |
|---|---|
| Glucose / minerals | Glucose, calcium |
| Electrolytes | Sodium, potassium, CO2, chloride |
| Kidney | BUN, creatinine |
| Protein | Albumin, total protein |
| Liver | Alkaline phosphatase, ALT, AST, total bilirubin |
How do bundling and unbundling rules apply?
Example: a lab runs a CMP and also separately reports 80048 (basic metabolic panel) on the same date. NCCI bundles 80048 into 80053, so the payer denies 80048 with no modifier override available. Likewise, billing the individual chemistry component codes alongside 80053 is unbundling and is rejected under NCCI edits.
- All 14 components performed → bill 80053 alone.
- Fewer than 14 performed → bill only the individual component codes.
- Never report 80053 with 80048 or its own component codes together.
Order the panel to a supporting diagnosis, since payer medical-necessity policies drive coverage for routine chemistry testing.
Frequently asked questions
Because 80053 is a clinical laboratory test, not a physician service. On the PFS it carries status indicator X (statutory exclusion), meaning it is never paid from that schedule. Payment comes from the Clinical Laboratory Fee Schedule (CLFS) instead, which uses national limitation amounts and gapfill/crosswalk pricing. The $0 is expected, not an error.
Fourteen. The AMA definition requires all 14: glucose, calcium, sodium, potassium, CO2, chloride, BUN, creatinine, albumin, total protein, alkaline phosphatase, ALT, AST, and total bilirubin. If the lab performs fewer than 14, you cannot bill 80053; report the individual component codes actually performed instead.
No. NCCI treats the basic metabolic panel (80048) as a component of 80053, and the edit has no modifier override. Billing both for the same date of service triggers a denial of the lower-valued code. The same logic bundles individual chemistry component codes into the panel.
Sources & further reading
Reviewed by the ImmediCare Solutions RCM team
Certified billers and coders handling claims across 50+ specialties nationwide. This entry is reviewed against current payer policy and CMS rules. Last review: Jul 5, 2026.
Stop losing revenue to problems like this.
A free billing audit shows exactly where your practice is leaking money — no cost, no commitment.
