Date Posted: March 26, 2026

This Billing and Coding Article has been revised under contractor numbers: 02102 (AK), 02202 (ID), 02302 (OR), 02402 (WA), 03102 (AZ), 03202 (MT), 03302 (ND), 03402 (SD), 03502 (UT), and 03602 (WY).

Effective Date: January 1, 2026

Summary of Changes: Under Article Text, revised: "Append computed tomography cerebral perfusion analysis identified with CPT 0042T or 70472 with the KX modifier to attest the CTP analysis was performed in a certified stroke center." to "Append computed tomography cerebral perfusion analysis identified with CPT 70472 with the KX modifier to attest the CTP analysis was performed in a certified stroke center."

Under Article Text, removed: "Effective 1/1/26 CPT code 0042T will be replaced with CPT code 70472 & 70473 for Computed Tomography Cerebral Perfusion Analysis (CTP). Claims with date of service prior to 1/1/26 should still use 0042T."

Under Article Text, added the following clarification of acronyms: Cerebral Perfusion Analysis (CPA), Computed Tomography (CT), Artificial Intelligence QT interval Corrected Analysis (AI-QTC), Artificial Intelligence Cerebral Perfusion Analysis (AI-CPA, and Coronary CT Angiography (CCTA)

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