Prin care mgmt phys ea addl
CPT 99425 is an add-on code for additional time spent by physicians or qualified healthcare professionals providing principal care management services beyond the base 30 minutes. It represents each additional 30 minutes of care coordination for patients with complex chronic conditions.
This calculator gives a typical-case estimate using standard Medicare modifier rules. Actual payment depends on payer policies, documentation, code-specific CMS status indicators, and locality. Verify before billing.
RVU breakdown
Conversion factor: 32.3465 · Source: CMS MPFS RVU25A · Confidence: High
NCCI bundling edits
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Billing tips
Track time meticulously using care management logs that document all non-face-to-face activities in 30-minute increments beyond the base code
Impact: Each properly documented 30-minute increment yields $58.87 in Medicare reimbursement; missed documentation costs practices this amount per unreported period
Bill 99425 only in conjunction with base principal care management codes (99424 or 99426); this is an add-on code and cannot stand alone
Impact: Standalone billing results in 100% denial; always verify base code is included on same claim or previously billed in calendar month
Ensure patient consent is documented before initiating principal care management services and is valid for the entire service period
Impact: Missing consent documentation is a leading audit trigger that can result in recoupment of all PCM payments including add-on services
Do not bill 99425 in the same service period as chronic care management (CCM) codes 99490/99491 or transitional care management codes
Impact: Overlapping care management codes are bundled; billing both results in denial of the lesser-paying service
Count all qualifying time in the calendar month including care coordination, medication review, phone calls, and care plan development beyond the base 30 minutes
Impact: Practices commonly underbill by not aggregating all qualifying activities; each missed 30-minute increment represents $58.87 in lost revenue
Report multiple units of 99425 when documented time exceeds 60 minutes total (base 30 + first add-on 30 + additional units)
For 90 minutes total PCM time, billing base code plus two units of 99425 captures full reimbursement potential versus leaving money on the table
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