99437
Chronic care mgmt physician 30 min
Chronic care management, each additional 30 minutes of physician or QHP personal time per calendar month. CMS 2026 wRVU 1.00, paid using the national GPCI and the 2026 conversion factor of $33.4009. Add-on to 99491; it can never be billed alone or with the staff-time codes.
When to use it
Use 99437 when your personally performed CCM time for the month exceeds the 30 minutes covered by 99491. The first unit applies at 60 cumulative clinician minutes, the second at 90; Medicare's claim edits cap it at 2 units per month, so the clinician-personal track tops out at 90 billable minutes.
Full guidance
This is the code for months when you, not your staff, are running the care plan: titrating heart failure medications by phone across multiple calls, coordinating directly with oncology and palliative care on a deteriorating patient, managing a complex medication cascade after a hospitalization, or fielding repeated family conversations about a patient with dementia. Only non-face-to-face time personally performed by the billing physician, NP, or PA counts. Clinical staff minutes belong to the 99490/99439 family, and the two families cannot be mixed for the same patient in the same month. Across a panel, the typical pattern is 99490/99439 for the program-managed majority and 99491/99437 for the handful of high-complexity patients the clinician manages personally.
Documentation checklist
- ✓Cumulative clinician-personal time log for the calendar month: each entry dated, timed, and describing the activity and the chronic condition addressed.
- ✓First 99437 unit requires 60 total personal minutes; the second requires 90. Bill at most 2 units per month.
- ✓All 99491 base requirements continue to apply: two or more chronic conditions expected to last 12 or more months, comprehensive care plan, annual documented consent.
- ✓Time must be non-face-to-face and personally performed. Staff time, resident time, and visit minutes never count.
- ✓Bill 99437 on the same claim as 99491 for the month.
Common pitfalls
- !Attaching 99437 to 99490. It attaches to 99491 only; the staff and clinician code families are mutually exclusive within a month.
- !Counting delegated work. If your nurse made the calls, that time belongs in the 99490/99439 log, even if you directed it closely.
- !Billing a unit before the full increment is reached. 59 personal minutes is 99491 alone; the first 99437 unit needs the full 60.
- !Letting the EHR time tracker mix face-to-face and non-face-to-face minutes. Office-visit time on an encounter date must be excluded from the monthly CCM total.
- !Skipping the add-on entirely. Clinicians who personally manage complex patients often log 60+ minutes without billing past 99491, leaving roughly a third of the available care management wRVU uncaptured.
Payer notes
Medicare and Medicare Advantage cover 99437 with standard cost share; disclose it in the annual CCM consent. Commercial coverage is limited, as with the rest of the CCM family. At wRVU 1.00 per 30-minute unit, a fully documented 90-minute clinician-personal month (99491 + 2 x 99437) carries 3.45 wRVU, more than a level 5 established visit (2.80), which is the economic argument for logging personal care management time instead of absorbing it.