99417
Prolng op e/m each 15 min
Prolonged outpatient evaluation and management service, each 15 minutes of total time beyond the threshold of the primary E/M code. CMS 2026 wRVU 0.61. Commercial-payer counterpart to Medicare's G2212; cannot be billed to Medicare for the same encounter. Add-on only, never a stand-alone code.
When to use it
Use 99417 as an add-on to 99205 or 99215 when total time on the date of the encounter exceeds the time threshold of the primary code by at least a full 15 minutes. Under current CPT rules 99205 requires 60 or more minutes, so the first 99417 unit applies at 75 minutes of total time; 99215 requires 40 or more minutes, so the first unit applies at 55 minutes.
Full guidance
Each subsequent full 15-minute block is an additional 99417 unit. Typical scenarios: extended counseling for complex care planning, multi-system review on a complicated new patient, family meeting attached to an office visit, motivational-interviewing-heavy behavioral health follow-up. 99417 only attaches to 99205 and 99215; you cannot add it to 99213, 99214, 99203, or 99204. Medicare beneficiaries use G2212 instead, which starts counting later (89 minutes for 99205, 69 minutes for 99215). Verify your patient's payer before billing.
Documentation checklist
- ✓Document total physician or QHP time on the date of the encounter, with the qualifying activities listed (chart review, history, exam, counseling, ordering, documentation, care coordination performed on the date of encounter).
- ✓Time must exceed the primary code's threshold by at least 15 minutes for the first 99417 unit. The half-time rule does not apply to 99417; you need the full 15-minute increment.
- ✓Each additional 15-minute block is a separate unit. There is no upper cap, but units beyond 2 invite payer scrutiny.
- ✓Only the billing provider's time counts. Clinical staff time and time spent on different dates do not.
- ✓Activities like patient education, family meeting, prescription decisions, prior authorization submission, and care coordination on the same calendar day count toward total time.
- ✓Document the time separately from any other time-based add-ons. If you also bill 99497 (ACP), the ACP time must be carved out from the E/M time, and you must satisfy the time requirements for each code independently.
Common pitfalls
- !Billing 99417 for a Medicare patient. Medicare uses G2212 for office and outpatient prolonged services; G0316, G0317, and G0318 cover the inpatient/observation, nursing facility, and home/residence settings. Submitting 99417 to Medicare results in a denial; submitting G2212 to a commercial plan that does not accept it also denies. Always match the prolonged-service code to the payer.
- !Attaching 99417 to 99213, 99214, 99203, or 99204. It only attaches to 99205 and 99215. Mid-level prolonged services are not separately billable; if the work was that extensive, the primary code itself was likely undercoded.
- !Billing the first unit when time is less than a full 15 minutes beyond the threshold. For 99215 the trigger is 55 minutes (the 40-minute threshold plus a full 15-minute increment), not 41. CMS and commercial payers enforce the full-increment rule on the first unit.
- !Vague time documentation. Audit-proof language: "Total time on date of encounter was 85 minutes. Qualifying activities included history, exam, counseling, family meeting, care coordination with hospice, and documentation." Without the activity list, the time claim is unverifiable at audit.
- !Stacking 99417 with 99358 or 99359 (prolonged service without direct patient contact) for the same time interval. Time can only be counted once across overlapping codes.
- !Forgetting that telehealth E/M with modifier 95 still permits 99417 on commercial payers that recognize prolonged service via telehealth. Check your payer-specific telehealth list.
Payer notes
Commercial payers including UnitedHealthcare, Aetna, Cigna, and most BCBS plans accept 99417 with proper documentation; reimbursement is typically the wRVU times the payer's conversion factor. Medicare and Medicare Advantage use G2212 for office and outpatient prolonged services and will deny 99417. Submit the correct prolonged-service code per payer; resubmitting a denied claim under the alternate code is allowed but slows revenue cycle. Some commercial payers require a specific place-of-service modifier; check your payer-specific guidance before billing.