Surgery and procedures CPT 58100 Inpatient — admitted to hospital

Endometrial biopsy cost in San Andreas, CA — inpatient

In San Andreas, CA, 1 hospital lists a cash price for endometrial biopsy (uterine lining sample) without dilating the cervix as an inpatient: from $154.52 to $154.52, with a median of $154.52. Across California, the median is $546.00 at 91 hospitals.

Cash prices at 1 facility for code 58100, 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$154.52Mark Twain Medical Center
Median$154.52half pay less
Highest$154.52in 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 Andreas, CA.

median
Lowest $154.52Highest $187.15

Hospitals, cheapest first

HospitalCash price List priceInsurers payOff listFile date
Mark Twain Medical Center lowest San Andreas, CA · (209) 754-3521 PF ENDOMTRL BX WO CRV DIL $154.52 $232.00 $125.59–$227.36 33% Feb 28, 2026
source file
Mark Twain Medical Center San Andreas, CA · (209) 754-3521 RHC BX ENDOMETRIAL WO DIL $187.15 $281.00 $152.11–$275.38 33% Feb 28, 2026
source file

Inpatient: lowest $154.52, median $154.52, highest $154.52.

As an outpatient, the same code is billed by 1 facility here, median $154.52 — 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

An endometrial biopsy takes a small sample of the uterine lining with a thin tube passed through the cervix, without stretching the cervix open. It is used to investigate abnormal bleeding, such as bleeding after menopause.

What the price covers

The price covers taking the sample. The pathologist's exam and the office visit are usually billed separately.