CPT
90471 — Immunization administration, single vaccine
ACA-covered vaccines should be free, including the admin fee.
Cardiology
93350 — Echocardiography, transthoracic, real-time; during stress test, with interpretation and report
This is an ultrasound of your heart performed while your heart is stressed (typically through exercise or medication) to detect problems that only appear under exertion.
- Typical setting: Doctor's office, hospital outpatient
- National avg charge (illustrative): $800–$2,500 (facility and physician fees combined; varies widely by region)
- Most-disputed reason: Billing 93350 together with 93306 (complete resting echocardiogram) on the same date without documentation that both a complete resting echo and a separate stress echo were performed as distinct studies.
What it means
What 93350 actually means
This is an ultrasound of your heart performed while your heart is stressed (typically through exercise or medication) to detect problems that only appear under exertion. Images are taken before and after stress to compare heart wall movement and function.
Common errors with this code
What goes wrong on real bills.
Most bills that look correct still contain at least one of these issues. Up to 49% of medical bills contain errors (CFPB).
- Billing 93350 together with 93306 (complete resting echocardiogram) on the same date without documentation that both a complete resting echo and a separate stress echo were performed as distinct studies.
- Unbundling the stress echo into its component parts (resting echo plus stress test) rather than using the combined stress echo code — review your EOB for duplicate echo charges.
- Missing -26 (professional component) or -TC (technical component) modifiers when the physician and facility bill separately, which can result in duplicate payment or denied claims.
If you see 93350 on your bill
Three steps before paying.
1. Get the itemized bill. If your statement only shows a summary, request the CPT-level itemized bill before paying. Generate the request language →
2. Cross-check against the EOB. Compare what your insurer's Explanation of Benefits says you owe versus what the hospital is asking. They disagree more often than people think. Read the bill-vs-EOB guide →
3. Run a free Bill Scan. Upload the bill (and EOB if you have it) and BillBusted will flag the most likely issues with this specific code in your specific state. Run free scan →
Related codes
Other codes in this category.
People who land on 93350 often also see these adjacent codes on the same bill.
CPT
90472 — Immunization admin; each additional vaccine
Vaccine — admin (90471) is separate from the vaccine product code.
CPT
90651 — Human papillomavirus vaccine types 6, 11, 16, 18, 31, 33, 45, 52, 58, nonavalent , IM
Vaccine — admin (90471) is separate from the vaccine product code.
CPT
90670 — Pneumococcal conjugate vaccine, 13 valent , IM
Vaccine — admin (90471) is separate from the vaccine product code.
CPT
90671 — Pneumococcal conjugate vaccine, 15 valent , IM
Vaccine — admin (90471) is separate from the vaccine product code.
CPT
90677 — Pneumococcal conjugate vaccine, 20 valent , IM
Vaccine — admin (90471) is separate from the vaccine product code.
Related BillBusted guides
Plain-English reads if you see 93350 on a bill.
93350 FAQ
Plain-English answers.
What does 93350 usually cost?
$800–$2,500 (facility and physician fees combined; varies widely by region). Costs vary by region, payer contract, and whether the service was performed in a hospital outpatient department (which adds a facility fee) versus a free-standing clinic.
What's the most common billing error on 93350?
Billing 93350 together with 93306 (complete resting echocardiogram) on the same date without documentation that both a complete resting echo and a separate stress echo were performed as distinct studies.
What should I do if I see 93350 on my bill?
Request the itemized bill and the matching EOB from your insurer. Compare the units/quantity billed against what you actually received. Run a free BillBusted scan to flag the most likely errors specific to 93350 before paying.
Don't pay 93350 blindly.
The free scan tells you in under 60 seconds whether this charge looks reasonable for your situation.