28812
CPTSurgeryDivalproex Sodium Tab ER 24 HR 500 MG
Based on the latest published hospital price files, code 28812 (Divalproex Sodium Tab ER 24 HR 500 MG) appears at 7 hospitals across 7 cities in 2 states with disclosed cash prices from $4.48 to $26.49. This is public hospital price transparency data, not a guaranteed estimate of your bill.
New to this? Read How to compare hospital prices by CPT code.
What this is
This is a surgical or procedural code. The published price typically covers the facility/procedure charge for performing it — the operating-room, equipment, and staff resources.
What affects the price
A surgical price almost never includes the separate bills you may receive from the surgeon, anesthesiologist, or pathologist. Ask the hospital for a bundled good-faith estimate that lists every expected charge, not just this one.
Category: Surgery
What the published prices show
Across the 7 hospitals that disclose a cash price for code 28812, the median is $7.39, and half of the disclosed prices fall between $5.72 and $11.24 — about a 2× difference for the same billing code. The full disclosed range runs from $4.48 to $26.49.
Published-price availability
Compare 28812 prices
Filter by hospital, city, setting, or payer — the summary and charts update with your filters.
Published cash prices for code 28812 vary by about 5.9× across the 7 hospitals with disclosed prices here — from $4.48 to $26.49. Shopping around can matter.
Lowest cash price by hospital
Cash price by city
Reflects your current filters.
- Saint Charles · 1 hospital$4.48
- Wentzville · 1 hospital$4.48
- Richmond Heights · 1 hospital$6.96
- Fenton · 1 hospital$7.39
- Bridgeton · 1 hospital$7.40
- Saint Louis · 1 hospital$15.07
7 prices shown.
| Service | Hospital | Code | List price | Cash price | Negotiated range | Allowed (median) | |
|---|---|---|---|---|---|---|---|
| Divalproex Sodium Tab ER 24 HR 500 MG Inpatient & outpatient | SSM Health St. Joseph Hospital - St. Charles | 28812 CDM | $8.15 | $4.48 | — | — | |
| Divalproex Sodium Tab ER 24 HR 500 MG Inpatient & outpatient | SSM Health DePaul Hospital - St. Louis | 28812 CDM | $13.45 | $7.40 | — | — | |
| Divalproex Sodium Tab ER 24 HR 500 MG Inpatient & outpatient | SSM Health Saint Louis University Hospital | 28812 CDM | $27.40 | $15.07 | — | — | |
| Divalproex Sodium Tab ER 24 HR 500 MG Inpatient & outpatient | SSM Health St. Joseph Hospital- Wentzville | 28812 CDM | $8.15 | $4.48 | — | — | |
| Divalproex Sodium Tab ER 24 HR 500 MG Inpatient & outpatient | SSM Health St. Clare Hospital - Fenton | 28812 CDM | $13.43 | $7.39 | — | — | |
| Divalproex Sodium Tab ER 24 HR 500 MG Inpatient & outpatient | SSM Health St. Anthony Hospital - Oklahoma City | 28812 CDM | $48.16 | $26.49 | — | — | |
| Divalproex Sodium Tab ER 24 HR 500 MG Inpatient & outpatient | SSM Health St. Mary's Hospital - St. Louis | 28812 CDM | $12.65 | $6.96 | — | — |
How to read these prices
- Cash price
- The discounted self-pay price for paying directly, without insurance.
- List price
- The hospital’s full undiscounted charge — rarely what anyone pays.
- Negotiated rate
- A rate for a specific insurer and plan; your share depends on your benefits.
- Allowed amount
- A historical reference for what was actually allowed, where disclosed.
Hospitals that publish 28812 prices
Open a hospital to see this code in the context of its full published prices.
Code 28812: frequently asked
- What does code 28812 cost?
- Across the published hospital price files, the disclosed cash price for 28812 ranges from $4.48 to $26.49. This is public hospital price transparency data, not a guaranteed estimate of your bill.
- Will this be my final bill?
- Actual patient responsibility may vary based on your insurance plan, deductible, coinsurance, network status, diagnosis, setting, bundled services, clinical circumstances, and hospital billing practices.
- What is code 28812?
- 28812 is the billing code hospitals use to identify "Divalproex Sodium Tab ER 24 HR 500 MG" on their published price files. We use it to line up the same service across different hospitals.
- Why do 28812 prices differ between hospitals?
- 7 hospitals across 2 states publish a price for 28812 here, and even setting aside the outliers, most disclosed cash prices span roughly a 2× difference. Each hospital sets its own prices and negotiates separately with each insurer, so the disclosed price for the same code can vary widely from one hospital to another — and even between plans at a single hospital. Comparing the published figures is what this page is for; a difference does not by itself mean one hospital is better or worse.
- What this page is not
- It is not a quote, a guarantee, or medical advice. It shows what hospitals have published for this code, so you can compare and ask informed questions — your actual cost depends on your insurance, the exact services performed, and the care setting.