Lab tests CPT 83090 Inpatient — admitted to hospital

Homocysteine test cost in San Luis Obispo, CA — inpatient

In San Luis Obispo-Paso Robles, CA, 1 hospital lists a cash price for homocysteine blood test as an inpatient: from $71.25 to $71.25, with a median of $71.25. Across California, the median is $41.20 at 135 hospitals.

Cash prices at 1 facility for code 83090, as an inpatient (admitted to hospital) . Collected Sep 27, 2026; the hospital files themselves were last updated between Feb 28, 2026 and Feb 28, 2026.

Lowest$71.25Dignity Community Care
Median$71.25half pay less
Highest$71.25in 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 San Luis Obispo-Paso Robles, CA.

median
Lowest $71.25Highest $128.89

Hospitals, cheapest first

HospitalCash price List priceInsurers payOff listFile date
Dignity Community Care lowest San Luis Obispo, CA · (805) 543-5353 RL-LA-THROMB RISK 117720B $71.25 $181.75 $49.08–$178.12 61% Feb 28, 2026
source file
Dignity Community Care San Luis Obispo, CA · (805) 543-5353 RL-A-MAYO HCYSU TOT URINE $128.89 $328.80 $88.78–$322.23 61% Feb 28, 2026
source file

Inpatient: lowest $71.25, median $71.25, highest $71.25.

As an outpatient, the same code is billed by 1 facility here, median $71.25 — that is the price to compare if you are not being admitted.

Cash or insurance?

At the one hospital here that publishes insurer rates for this code, the cash price is below the highest rate a health plan has negotiated. 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 homocysteine test measures an amino acid that rises with low vitamin B12 or folate and in some inherited conditions.

What the price covers

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

2 rows held back from this comparison

They are priced below $1 or below a tenth of the national median for code 83090 ($110.54). Such a line is almost always a physician's fee billed separately, an assistant's share or a placeholder — a real charge, but not the price of the procedure itself.

Dignity Community Care San Luis Obispo, CARL-A-HOMOCY-QNT 99869 $5.10 file
Dignity Community Care San Luis Obispo, CARL-A-THROMRISK 3017156B $5.98 file