99439
Chrnc care mgmt staf ea addl
Chronic care management, each additional 20 minutes of clinical staff time directed by a physician or QHP per calendar month. paid using the national GPCI and the 2026 conversion factor of $33.4009. Add-on to 99490, maximum 2 units per month.
Published by RVUDoc. Numeric data: CMS RVU26C, effective 2026-07-01. Page updated 2026-09-23. Calculation limits and editorial policy.
Fee-schedule estimate before claim adjustments. Coverage, setting and payer rules still apply.
Billing guidance for 99439 is locked
- When to use it: the exact clinical situations that support billing 99439
- Documentation checklist: the 5 elements your note needs before submitting
- Common pitfalls: the 5 mistakes that get 99439 downcoded or denied
Payer notes
Medicare and Medicare Advantage cover 99439 with the same patient cost share as 99490; consent documentation should disclose it. Commercial coverage is sparse, matching 99490. Practices running structured CCM programs find roughly a quarter to a third of enrolled patients exceed 40 staff minutes in active months, so unbilled 99439 units are one of the most common care management revenue leaks. Track minutes in your CCM platform and bill the add-on automatically at the 40 and 60 minute marks.
Related codes
These include alternative services and possible add-ons. Listing codes together does not establish that they can be billed together; check the applicable edits and payer policy.
See what 99439 adds to your year
Add it to the wRVU calculator with your own volume, or paste a note and let the chart audit check your coding.