M1381 – Patients with secondary stroke (e.g., a subsequent stroke that may occur with vasospasm in the setting of subarachnoid hemorrhage) within 5 days of the initial procedure

HCPCS Level II code · M codes: Medical Services and Quality Measures

Active code Carrier judgment

HCPCS codeM1381
Long description
Patients with secondary stroke (e.g., a subsequent stroke that may occur with vasospasm in the setting of subarachnoid hemorrhage) within 5 days of the initial procedure
Short description
Pt sec strk wthin 5 days
Pricing indicator
00 Not separately priced by Part B (bundled, not covered or Part A only)
Medicare coverage
C Carrier judgment – coverage decided by the Medicare contractor
BETOS category
Z2 Undefined codes
Added
January 1, 2025
Last change
January 1, 2025 – No change

Frequently asked questions

What is HCPCS code M1381?

M1381 is a HCPCS Level II code for patients with secondary stroke (e.g., a subsequent stroke that may occur with vasospasm in the setting of subarachnoid hemorrhage) within 5 days of the initial procedure.

Does Medicare cover M1381?

The HCPCS file lists coverage code C: Carrier judgment – coverage decided by the Medicare contractor. Coverage and payment also depend on local coverage determinations and the patient’s plan.

Nearby M codes

Source: CMS HCPCS Level II quarterly file, October 2026. Reference only – check payer policy before billing.