CPT
70450 — CT scan of head/brain without contrast
Same scan can cost 5x more at a hospital than at an imaging center.
Imaging
76830 — Transvaginal ultrasound
Pelvic ultrasound performed transvaginally. Common in OB/GYN workups for pelvic pain, fertility, or early pregnancy.
- Typical setting: Doctor's office or hospital outpatient
- National avg charge (illustrative): Insurance allowed $100-$300; cash $150-$500.
- Most-disputed reason: Billed alongside 76856 (transabdominal) when only one approach was used.
What it means
What 76830 actually means
CPT 76830 is a transvaginal pelvic ultrasound. It's commonly used in OB/GYN evaluations and early-pregnancy assessment.
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).
- Both 76830 and 76856 (transabdominal) billed when only one was performed.
- Charged as 76817 (OB transvaginal, pregnant) versus 76830 (non-OB) inappropriately.
If you see 76830 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 76830 often also see these adjacent codes on the same bill.
CPT
70470 — CT head/brain with and without contrast
If contrast wasn't given, 70470 is the wrong code.
CPT
70486 — CT maxillofacial area; without contrast material
Imaging — verify professional + technical components weren't double-billed.
CPT
70551 — MRI brain without contrast
Same scan can be 5x cheaper at a freestanding imaging center.
CPT
71045 — Chest X-ray, single view
Same image can cost 10x more at a hospital than a freestanding imaging center.
CPT
71046 — Chest X-ray, two views (PA + lateral)
Two-view CXR is standard. Watch the price gap between hospital and freestanding.
Related BillBusted guides
Plain-English reads if you see 76830 on a bill.
76830 FAQ
Plain-English answers.
Don't pay 76830 blindly.
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