Is CPT 99483 time-based?
A common point of confusion: is 99483 billed on time, like some E/M codes? No — it is a service-based code. This page explains what supports the claim and how to document it.
The direct answer
CPT 99483 is service-based, not time-based. What supports the claim is completing and documenting the required assessment elements and the written care plan — not the number of minutes spent. A typical time (about 60 minutes) is associated with the code, but that time is not itself a billing requirement.
What this means for your documentation
Document the elements, not a stopwatch. The note should evidence each assessment element and the care plan; a recorded duration is not what makes the service billable. Advertising or justifying the service on time — for example “a 45-minute visit” — misframes a service-based code and is best avoided.
Where time does matter: G2212
There is one time-related add-on: G2212 (prolonged services) may be reported when the visit exceeds 60 minutes and prolonged-service criteria are met. That add-on is time-based; the base 99483 service is not.
Frequently asked questions
Is 99483 time-based?
No. CPT 99483 is service-based — completing and documenting the required assessment elements and the written care plan supports the claim, not the number of minutes spent.
How long does a 99483 visit take?
About 60 minutes is typical, and the code carries an associated typical time, but that time is not a billing requirement. The service is supported by the elements documented, not the duration.
Do I have to document the time spent for 99483?
No. Document the required assessment elements and the care plan. A recorded duration is not what makes the service billable.
When does time matter for 99483?
Only for the G2212 prolonged-services add-on, which may be reported when the visit exceeds 60 minutes and prolonged-service criteria are met. The base 99483 is not time-based.
Do 99483 without the paperwork
ClinicalAssessment.io captures every required element in one structured pass and assembles a compliant care plan you review and sign — built by a physician.
Clinically reviewed by Dr Adeyinka Adegbosin (MBBS, PhD). General information, not billing or legal advice — verify current CMS requirements, frequency, and payment for your year and locality.