Billing 99483 same day as the AWV — and modifier 25
A frequent billing question: if cognitive impairment is identified during the Annual Wellness Visit, can the comprehensive 99483 assessment be billed the same day? Yes — with modifier 25 — or on a separate day. Both are valid; this page covers the mechanics.
The short answer
CPT 99483 can be billed on the same day as the Annual Wellness Visit (G0438/G0439) by appending modifier 25 to the 99483, or it can be furnished as a separate-day standalone encounter. Both paths are allowed. The earlier assumption in some guidance that same-day billing was not permitted is incorrect per Medicare Administrative Contractor provider education.
Why modifier 25 applies
The AWV already includes a brief detection of cognitive impairment as a required component — that screen is not separately billable. When the screen (or clinical judgment) identifies impairment and a comprehensive assessment is warranted, 99483 is a significant, separately identifiable service beyond the AWV. Modifier 25 signals exactly that: a distinct service performed on the same day as another reported service.
Document the two services distinctly: the AWV components, and — separately — the 99483 assessment elements and the written care plan. The separateness must be visible in the note.
The separate-day path
Many practices prefer a dedicated, separate-day visit: the AWV flags the concern, and the patient returns for the full 99483 assessment with the independent historian present or their history already captured. This is equally valid and is often the cleaner workflow for a service that benefits from dedicated time and caregiver input.
The RHC / FQHC nuance
In a Rural Health Clinic, same-day services bundle into the all-inclusive rate — so to be separately reimbursed, 99483 must be furnished as a standalone different-day encounter. FQHC/PPS treatment should be verified against current guidance for your setting. Always confirm the current rules for your locality and billing year.
Frequently asked questions
Can you bill 99483 and the AWV on the same day?
Yes. CPT 99483 can be billed on the same day as the Annual Wellness Visit by appending modifier 25 to the 99483, provided the cognitive assessment is a significant, separately identifiable service documented distinctly from the AWV.
Which code gets modifier 25 — the AWV or the 99483?
Modifier 25 is appended to the 99483 (the significant, separately identifiable service performed on the same day as the AWV).
Is the AWV cognitive screen billable separately?
No. A brief detection of cognitive impairment is a required component of the AWV and is not separately billable. When impairment is identified and a comprehensive assessment is done, that comprehensive service is billed as 99483.
Can 99483 be billed on a separate day from the AWV?
Yes. A separate-day standalone 99483 encounter is valid, and is often the cleaner workflow because the service benefits from dedicated time and independent-historian input.
How does same-day billing work in a Rural Health Clinic?
In an RHC, same-day services bundle into the all-inclusive rate. To be separately reimbursed, 99483 must be furnished as a standalone different-day encounter. Verify FQHC/PPS treatment separately.
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.