M1438 – Time last known well to hospital arrival less than or equal to 3.5 hours (<= 210 minutes)

Long description

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

Short description

Lst knwn well <=210 min

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, 2026

Last change

January 1, 2026 – No change

Nearby M codes

• M1430 – Retinal exam finding without evidence of retinopathy in both eyes with severity level documented (in measurement year or in the prior year)
• M1431 – Encounters conducted via telehealth
• M1432 – Encounters conducted via telehealth
• M1433 – Patient on oral chemotherapy on or within 30 days before denominator eligible encounter
• M1434 – Patient on oral chemotherapy on or within 30 days after denominator eligible encounter
• M1435 – Patient on oral chemotherapy during the performance period
• M1436 – Encounters conducted via telehealth
• M1437 – Encounters conducted via telehealth
• M1439 – Significant ocular conditions that impact the visual outcome of surgery
• M1440 – Encounters conducted via telehealth
• M1441 – Encounter corresponds to initial diagnosis of sleep apnea or first contact with sleep apnea diagnosed patient
• M1442 – Encounters conducted via telehealth
• M1443 – Encounters conducted via telehealth
• M1444 – Delivery at < 39 weeks of gestation
• M1445 – Postpartum care visit before or at 12 weeks of giving birth
• M1446 – Patients who died any time prior to the end of the measure assessment period