Lab tests CPT 84681 Outpatient

C-peptide test cost in Boulder, CO

In Boulder, CO, 1 hospital lists a cash price for C-peptide blood test: from $409.35 to $409.35, with a median of $409.35. Across Colorado, the median is $179.50 at 44 hospitals.

Cash prices at 1 facility for code 84681, as an outpatient — the setting a self-pay patient normally buys. Collected Sep 23, 2026; the hospital files themselves were last updated between Apr 1, 2026 and Apr 1, 2026.

Lowest$409.35AdventHealth Avista
Median$409.35half pay less
Highest$409.35in this market
Difference1.0×highest vs lowest

Where each hospital's price falls

Each dot is one hospital's cash price on a scale from the lowest to the highest in Boulder, CO.

median
Lowest $409.35Highest $409.35

Hospitals, cheapest first

HospitalCash price List priceInsurers payOff listFile date
AdventHealth Avista lowest Louisville, CO · (303) 673-1000 HC ASSAY OF C-PEPTIDE - C-PEPTIDE $409.35 $409.35 — — Apr 1, 2026
source file
AdventHealth Avista lowest Louisville, CO · (303) 673-1000 HC C PEPTIDE LEVEL - QWDL $409.35 $409.35 — — Apr 1, 2026
source file
AdventHealth Avista lowest Louisville, CO · (303) 673-1000 HC C PEPTIDE LEVEL - ARUP $409.35 $409.35 — — Apr 1, 2026
source file

Outpatient: lowest $409.35, median $409.35, highest $409.35.

As an inpatient, the same code is billed by 1 facility here, median $409.35. Inpatient and outpatient prices are not comparable and are kept on separate pages: the inpatient charge covers admission, not the same purchase.

What it is

A C-peptide test shows how much insulin the pancreas is making. It helps tell type 1 from type 2 diabetes and find the cause of low blood sugar.

What the price covers

The price usually covers running the test. The blood draw (36415) is often billed as a separate line.