Medicare Adds Short-Window Codes for Remote Patient Monitoring in 2026

The 2026 Medicare Physician Fee Schedule introduces changes to remote patient monitoring billing, adding CPT codes 99445 and 99470 for shorter monitoring windows of 2 to 15 days. The change addresses the previous 16-day rule, which required a device to record and transmit data on at least 16 days within a 30-day period, and a 20-minute threshold under which shorter clinical interactions generated no reimbursement.

Billing rules shape device design more directly than is usually acknowledged. A 16-day minimum inside a 30-day window makes adherence the product's central problem: a device is only worth deploying if the patient uses it more than half the days in a month, so everything from charging frequency to how a reading gets transmitted is subordinate to keeping a person engaged for sixteen days.

Short-window codes open a different category of deployment. Monitoring after a procedure, during a medication adjustment, or across a suspected episode is clinically ordinary and was economically awkward. A device intended for a two-week episode has different requirements from one intended for continuous chronic monitoring — it can be simpler, it can prioritise setup speed over long battery life, and it may be issued and returned rather than kept.