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70450 CPT Code: CT Head Without Contrast Billing

Last Updated: January 17, 2026

CPT 70450 (Computed tomography, head or brain; without contrast material) is one of the most frequently billed imaging codes in emergency medicine and neurology.

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2026 Medicare National Fee (70450): Non-Facility (Office): $139.53 · Facility (Hospital): $139.53
✓ 11,628 Medicare-Approved ICD-10 Diagnoses on file for 70450:

With vs Without Contrast

It is critical to select the correct CT code based on contrast usage:

  • 70450: Without contrast.
  • 70460: With contrast.
  • 70470: Without contrast, followed by contrast and further sections.

Medical Necessity & Trauma

Verify Medical Necessity

Don't risk a denial. See if your ICD-10 code is on the approved Medicare LCD list.

70450 is the gold standard for ruling out intracranial hemorrhage following head trauma. Ensure your ICD-10 codes match the symptoms, such as S06.0X0A ↗ (Concussion without loss of consciousness, initial encounter) or R51.9 ↗ (Headache, unspecified).

NCCI Edits

If you bill a CTA (CT Angiography) of the head (70496), the standard CT head (70450) is typically bundled into it unless performed at entirely separate, medically necessary encounters.

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