What Is CPT 99439? A Step-by-Step Guide to Billing the Add-On CCM Code
What Is CPT 99439?
When to Use CPT 99439
CCM CPT 99439 Guidelines and Time Requirements
Time increment structure
- 40 total minutes: Bill CPT 99490 + one unit of CPT 99439
- 60 total minutes: Bill CPT 99490 + two units of CPT 99439
- 35 total minutes: Bill CPT 99490 only (15 minutes does not reach the threshold for add-on billing)
Supervision and documentation rules
How to Bill CPT 99439 and Ensure Compliance
Pair CPT 99439 with CPT 99490 in claims
99439 billing example for 60 minutes
- Post-discharge medication reconciliation (18 minutes)
- Patient education call about fluid restriction (15 minutes)
- Reviewed INR results and coordinated warfarin adjustment (12 minutes)
- Scheduled cardiology follow-up (10 minutes)
- Updated care plan (5 minutes)