Lab tests CPT 87340 Inpatient — admitted to hospital

Hepatitis B test cost in San Luis Obispo, CA — inpatient

In San Luis Obispo-Paso Robles, CA, 1 hospital lists a cash price for hepatitis B surface antigen (HBsAg) test as an inpatient: from $66.25 to $66.25, with a median of $66.25. Across California, the median is $62.10 at 147 hospitals.

Cash prices at 1 facility for code 87340, 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$66.25Dignity Community Care
Median$66.25half pay less
Highest$66.25in this market
Difference1.0×highest vs lowest

Hospitals, cheapest first

HospitalCash price List priceInsurers payOff listFile date
Dignity Community Care San Luis Obispo, CA · (805) 543-5353 IA HEP B SURFACE AG QL $66.25 $169.00 $45.63–$165.62 61% Feb 28, 2026
source file

Inpatient: lowest $66.25, median $66.25, highest $66.25.

As an outpatient, the same code is billed by 1 facility here, median $13.33 — 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

The hepatitis B surface antigen test shows whether the hepatitis B virus is present in the blood now. The CDC recommends screening all adults at least once and every pregnant woman in each pregnancy.

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 87340 ($61.08). 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-HBSAG 20089 $1.96 file
Dignity Community Care San Luis Obispo, CARL-A-HEPCHRONIC 20454C $3.92 file