CPT code 93888: Transcranial Doppler, limited intracranial study2026 Medicare rate & RVUs in North Carolina

CMS doesn’t publish a rate for 93888 in North Carolina.

Check a contract rate as a % of Medicare · 93888 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 93888 covers

Transcranial Doppler uses ultrasound through the skull’s acoustic windows to assess blood-flow signals in intracranial arteries. A trained sonographer or other qualified staff member typically acquires the study in a hospital or outpatient setting, and a physician interprets the findings. Limited examinations may be used when the requested assessment does not call for the broader evaluation represented by a complete intracranial study.

Choose this code based on the extent of the examination performed, not simply the diagnosis or the number of abnormal findings. The record should support the clinical reason for testing, the vessels or windows assessed, relevant flow measurements, and the physician’s interpretation. CMS recognizes professional and technical components: report modifier 26 for interpretation, TC for equipment and staff, or neither for the global service. The cardiovascular diagnostic multiple procedure reduction applies to the technical component.

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 North Carolina compares for 93888

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93888 rates by state

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

See 93888 in every payment locality

How the 93888 rate is calculated

Each of 93888’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 93888

The CMS indicators that decide how 93888 is paid alongside other services.

What modifiers do to the payment

When to use modifier 26

Codes related to 93888

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

How 93888 has changed in North Carolina

Price 93888 for an earlier date of service

Where the North Carolina rate applies

North Carolina is a Medicare payment area, not a city. Our Census mapping connects it to 785 cities and communities in North Carolina. Some span more than one payment area; confirm with the service ZIP.

• Aberdeen
• Advance
• Ahoskie
• Alamance
• Albemarle
• Alexis
• Alliance
• Altamahaw

Browse all communities in North Carolina

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