Lab tests CPT 84100 Outpatient

Phosphorus test cost in Denver, CO

In Denver-Aurora-Centennial, CO, 25 hospitals list a cash price for phosphorus (phosphate) blood test: from $24.05 to $862.49, with a median of $260.99. The lowest listed price is at Childrens Hospital Colorado — $236.94 less than the median here. Across Colorado, the median is $87.50 at 46 hospitals.

Cash prices at 25 facilities across 10 cities for code 84100, as an outpatient — the setting a self-pay patient normally buys. Collected Sep 29, 2026; the hospital files themselves were last updated between Apr 1, 2026 and Sep 1, 2026.

Lowest$24.05Childrens Hospital Colorado
Median$260.99half pay less
Highest$862.49in this market
Difference35.9×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 Denver-Aurora-Centennial, CO.

median
Lowest $24.05Highest $2,156.94

Hospitals, cheapest first

HospitalCash price List priceInsurers payOff listFile date
Childrens Hospital Colorado lowest Aurora, CO · (720) 777-1234 HB=PHOSPHORUS SERUM INO $24.05 $37.00 $3.70–$34.04 35% Apr 17, 2026
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Denver Health and Hospital Authority Denver, CO · (303) 436-4927 HC PHOSPHORUS (PICCOLO) $24.82 $70.90 $4.74–$39.70 65% Apr 30, 2026
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Denver Health and Hospital Authority Denver, CO · (303) 436-4927 HC PHOSPHORUS $24.82 $70.90 $4.74–$39.70 65% Apr 30, 2026
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National Jewish Health Denver, CO · (303) 388-4461 HC PHOSPHORUS $31.50 $45.00 $4.74–$38.25 30% —
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Cobalt Rehabilitation Hospital Denver Westminster, CO Phosphorus $47.40 $47.40 $3.56–$40.29 — Aug 6, 2026
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Childrens Hospital Colorado Aurora, CO · (720) 777-1234 HB=CSHB PHOSPHORUS $74.10 $114.00 $11.40–$104.88 35% Apr 17, 2026
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Childrens Hospital Colorado Aurora, CO · (720) 777-1234 HB=PHOSPHORUS, FECAL $83.85 $129.00 $12.90–$118.68 35% Apr 17, 2026
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Reunion Rehabilitation Hospital Inverness Englewood, CO Assay of phosphorus $107.06 $107.06 — — Apr 1, 2026
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Reunion Rehabilitation Hospital Denver Denver, CO Assay of phosphorus $107.06 $107.06 — — Apr 1, 2026
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AdventHealth Castle Rock Castle Rock, CO · (720) 455-5000 HC PHOSPHORUS BODY FLUID $123.64 $123.64 — — Apr 1, 2026
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AdventHealth Littleton Littleton, CO · (303) 730-8900 HC PHOSPHORUS $123.64 $123.64 — — Apr 1, 2026
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AdventHealth Castle Rock Castle Rock, CO · (720) 455-5000 HC PHOSPHORUS $123.64 $123.64 — — Apr 1, 2026
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AdventHealth Littleton Littleton, CO · (303) 730-8900 HC PHOSPHORUS BODY FLUID $123.64 $123.64 — — Apr 1, 2026
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AdventHealth Parker Parker, CO · (303) 269-4000 HC PHOSPHORUS $123.64 $123.64 — — Apr 1, 2026
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AdventHealth Parker Parker, CO · (303) 269-4000 HC PHOSPHORUS BODY FLUID $123.64 $123.64 — — Apr 1, 2026
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AdventHealth Porter Denver, CO · (303) 778-1955 HC PHOSPHORUS BODY FLUID $123.64 $123.64 — — Apr 1, 2026
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AdventHealth Porter Denver, CO · (303) 778-1955 HC PHOSPHORUS $123.64 $123.64 — — Apr 1, 2026
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HCA Healthone Spalding Rehabilitation Aurora, CO PHOSPHORUS BLD $131.25 $131.25 $19.95–$118.13 — Sep 1, 2026
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Spalding at Psl Denver, CO · (303) 839-6000 Phosphorus inorganic (phosphate); $131.25 $131.25 $4.74 — Sep 1, 2026
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Spalding at Psl Denver, CO · (303) 839-6000 PHOSPHORUS BLD $131.25 $131.25 $19.95–$118.13 — Sep 1, 2026
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HCA Healthone Spalding Rehabilitation Aurora, CO Phosphorus inorganic (phosphate); $131.25 $131.25 $4.74 — Sep 1, 2026
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Childrens Hospital Colorado Aurora, CO · (720) 777-1234 HB=CATHARTIC LAXATIVES PROFILE (PHOS), FECES $161.85 $249.00 $24.90–$229.08 35% Apr 17, 2026
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Denver Health and Hospital Authority Denver, CO · (303) 436-4927 HC ASSAY OF PHOSPHORUS $162.35 $463.85 $4.74–$259.76 65% Apr 30, 2026
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Denver Health and Hospital Authority Denver, CO · (303) 436-4927 HC PHOSPHORUS INORGANIC PHOSPHATE $223.33 $638.08 $4.74–$357.32 65% Apr 30, 2026
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Craig Hospital Englewood, CO HC PHOSPHORUS ASSAY $260.99 $685.00 $4.03–$616.50 62% Jun 25, 2026
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HCA Healthone Presbyterian St Lukes Denver, CO · (303) 839-6000 PHOSPHORUS BLD $277.00 $277.00 $132.96 — Sep 1, 2026
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HCA Healthone Swedish Englewood, CO · (303) 788-5000 PHOSPHORUS BLD $479.37 $479.37 $72.86–$431.43 — Sep 1, 2026
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HCA Healthone Belmar ER Lakewood, CO · (303) 788-5000 PHOSPHORUS BLD $479.37 $479.37 $72.86–$431.43 — Sep 1, 2026
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HCA Healthone Southwest ER Littleton, CO · (303) 788-5000 PHOSPHORUS BLD $479.37 $479.37 $72.86–$431.43 — Sep 1, 2026
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HCA Healthone Northeast ER Thornton, CO · (303) 451-7800 PHOSPHORUS OTHER $631.82 $631.82 $96.04–$568.64 — Sep 1, 2026
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HCA Healthone Mountain Ridge Thornton, CO · (303) 451-7800 PHOSPHORUS OTHER $631.82 $631.82 $96.04–$568.64 — Sep 1, 2026
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HCA Healthone Southwest ER Littleton, CO · (303) 788-5000 PHOSPHORUS OTHER $632.27 $632.27 $96.11–$569.04 — Sep 1, 2026
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HCA Healthone Belmar ER Lakewood, CO · (303) 788-5000 PHOSPHORUS OTHER $632.27 $632.27 $96.11–$569.04 — Sep 1, 2026
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HCA Healthone Swedish Englewood, CO · (303) 788-5000 PHOSPHORUS OTHER $632.27 $632.27 $96.11–$569.04 — Sep 1, 2026
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HCA Healthone Northeast ER Thornton, CO · (303) 451-7800 PHOSPHORUS BLD $690.78 $690.78 $105.00–$621.70 — Sep 1, 2026
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HCA Healthone Mountain Ridge Thornton, CO · (303) 451-7800 PHOSPHORUS BLD $690.78 $690.78 $105.00–$621.70 — Sep 1, 2026
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HCA Healthone Sky Ridge Lone Tree, CO · (720) 225-1000 PHOSPHORUS OTHER $711.76 $711.76 $108.19–$640.58 — Sep 1, 2026
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HCA Healthone South Parker ER Parker, CO PHOSPHORUS BLD $711.76 $711.76 $108.19–$640.58 — Sep 1, 2026
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HCA Healthone South Parker ER Parker, CO PHOSPHORUS OTHER $711.76 $711.76 $108.19–$640.58 — Sep 1, 2026
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HCA Healthone Sky Ridge Lone Tree, CO · (720) 225-1000 PHOSPHORUS BLD $711.76 $711.76 $108.19–$640.58 — Sep 1, 2026
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HCA Healthone Presbyterian St Lukes Denver, CO · (303) 839-6000 PHOSPHORUS OTHER $725.25 $725.25 $210.32 — Sep 1, 2026
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HCA Healthone Central Park ER Denver, CO · (303) 320-2121 PHOSPHORUS BLD $729.00 $729.00 $110.81–$656.10 — Sep 1, 2026
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HCA Healthone Rose Denver, CO · (303) 320-2121 PHOSPHORUS BLD $729.00 $729.00 $110.81–$656.10 — Sep 1, 2026
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HCA Healthone Aurora Aurora, CO · (303) 873-5511 PHOSPHORUS BLD $862.49 $862.49 $131.10–$776.24 — Sep 1, 2026
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Centennial Hospital A Campus of Tmca Englewood, CO · (303) 873-5511 PHOSPHORUS BLD $862.49 $862.49 $131.10–$776.24 — Sep 1, 2026
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HCA Healthone Aurora Aurora, CO · (303) 873-5511 PHOSPHORUS OTHER $2,156.94 $2,156.94 $327.85–$1,941.25 — Sep 1, 2026
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Centennial Hospital A Campus of Tmca Englewood, CO · (303) 873-5511 PHOSPHORUS OTHER $2,156.94 $2,156.94 $327.85–$1,941.25 — Sep 1, 2026
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Outpatient: lowest $24.05, median $260.99, highest $862.49 — a 35.9× difference within the same market.

As an inpatient, the same code is billed by 12 facilities here, median $115.35. Inpatient and outpatient prices are not comparable and are kept on separate pages: the inpatient charge covers admission, not the same purchase.

Cash or insurance?

At 4 of 19 hospitals that publish insurer rates for this code here, the cash price is below the highest rate a health plan has negotiated, and at none is it below every plan's rate. If you have insurance but have not met your deductible, you usually pay your plan's negotiated rate, which falls somewhere in the "Insurers pay" column. Paying cash can cost less, but a cash payment usually does not count toward your deductible. Ask the hospital for both numbers before you book.

What it is

A phosphorus test measures phosphate in the blood. It is used with calcium for kidney disease, bone disease and parathyroid problems.

What the price covers

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