HCPCS code M1438 — Lst knwn well <=210 min. Status: Active. Effective Jan 1, 2026. Source: CMS HCPCS Level II.

M1438

Active

Lst knwn well <=210 min

Time last known well to hospital arrival less than or equal to 3.5 hours (<= 210 minutes)

Category: Medical Services
Section: M-codes: Medical Services
Effective: Jan 1, 2026
Code type: alphanumeric
OPPS Status: M — Items / services not billable to the fiscal intermediary or MAC

Change History

Quarterly changes published by CMS. Revisions may affect the code description, coverage, or rate — review each quarter's changes before submitting claims.

  • New Code 2026-Q1
    Lst knwn well <=210 min