CPT code 70450: Head CT, without contrast2026 Medicare rate & RVUs in South Dakota

In South Dakota, Medicare pays $105.22 for 70450 in the office.

Check a contract rate as a % of Medicare · 70450 nationwide

Medicare allowed amount for participating (non-QP) physicians, before deductible, coinsurance and claim adjustments. Not a patient’s bill or a hospital charge.

What 70450 covers

This study images the skull, brain, and intracranial spaces with CT and no contrast material. A radiologic technologist acquires images, typically viewed in brain and bone windows, and a radiologist interprets them. Often performed in emergency departments, it helps evaluate suspected stroke before thrombolysis, head injury after a fall, sudden severe headache, altered mental status, seizures, or known intracranial bleeding.

Select 70450 when only noncontrast head images are obtained. Use 70460 for contrast-enhanced images only, or 70470 when head images are obtained both before and after contrast in the same session. The report should document the indication, technique, and findings, such as hemorrhage, mass effect, midline shift, or fracture. Modifier 26 identifies the radiologist's interpretation; modifier TC identifies the scanner, staff, and other technical work. Billing without either modifier represents the global service. CMS applies the diagnostic imaging multiple procedure reduction to eligible technical and professional components when multiple imaging studies are furnished, such as head and cervical spine CT after trauma.

This summary was written with AI assistance from CMS physician fee schedule data and checked against the CMS billing rules shown here. Rates on this page come directly from CMS files.

How South Dakota compares for 70450

Across 109 of 109 payment localities, the office rate for 70450 runs from $94.74 in Arkansas to $142.62 in San Benito County, CA. South Dakota pays $105.22. The RVUs are the same everywhere; the geographic indexes change the dollars.

Every other payment area

70450 rates by state

Office rate range in each state. Select a state to see its payment localities.

See 70450 in every payment locality

How the 70450 rate is calculated

Each of 70450’s three RVUs is multiplied by a geographic index (GPCI) for the payment locality, added up, and multiplied by the conversion factor. Drag the indexes or enter a ZIP to see what moves the rate.

Payment rules and modifiers for 70450

The CMS indicators that decide how 70450 is paid alongside other services.

What modifiers do to the payment

When to use modifier 26

Codes related to 70450

Related codes aren’t interchangeable: bill the code that matches the service performed.

How 70450 has changed in South Dakota

Price 70450 for an earlier date of service

Where the South Dakota rate applies

South Dakota is a Medicare payment area, not a city. Our Census mapping connects it to 485 cities and communities in South Dakota. Some span more than one payment area; confirm with the service ZIP.

• Aberdeen
• Agar
• Agency Village
• Akaska
• Albee
• Alcester
• Alexandria
• Allen

Browse all communities in South Dakota

Where these rates come from

FeeBase calculates base physician payments from CMS work, practice-expense and malpractice RVUs, adjusted by each locality’s geographic indexes and the conversion factor. Services without a published rate are labeled, never given a made-up amount. Amounts are Medicare allowed amounts before claim adjustments: not a patient’s bill or a commercial rate.

CMS RVU26D · effective Oct 1, 2026 through the day before Jan 1, 2027

Open CMS sourceHow we calculate rates