Part of Remote Physiologic Monitoring
CPT 99458: RPM treatment management, each additional 20 minutes
Add-on code for each additional 20 minutes of RPM treatment management time beyond the 99457 threshold.
Time threshold & code combinations
Each additional 20 minutes of treatment management time, beyond 99457, per calendar month.
- Cannot be billed without 99457 in the same calendar month
- Can be reported more than once if additional 20-minute increments are met
Who can bill
- Physicians and non-physician practitioners
- Clinical staff under general supervision
Eligibility & billing requirements
- Same eligibility as 99457
- 99457 must be billed first for the same month
- Only reported after the first 20-minute threshold (99457) has been met
When to use it
Complex monthly review
After the initial 20-minute review, staff spend another 20 minutes coordinating with a cardiologist about an out-of-range reading.
Billing: 99457 + 99458
Documentation checklist
- Time log showing the additional 20-minute increment
Common billing mistakes
- Billing 99458 without a qualifying 99457 in the same month