AWV Codes and Billing: An Operational Reference
Eligibility verification, code selection, add-on controls, documentation, claim readiness, and denial handling.
Purpose and boundaries
An AWV is prevention planning, not a routine physical. Correct code selection requires verifying current CMS, MAC, and payer rules for the service date.
How to select the primary code
Use the patient's lifetime utilization history to determine the correct billing code.
| Code | Service | General timing | Operational control |
|---|---|---|---|
| G0402 | One-time IPPE | First 12 months of Part B | Verify the effective date and check for any prior paid G0402. |
| G0438 | Initial AWV | First AWV after the first Part B year, subject to IPPE timing | Verify no prior AWV was paid. "Initial" does not mean new to the practice. |
| G0439 | Subsequent AWV | After prior AWV and the current frequency window | Use the last paid AWV date, not the calendar year. |
How to verify eligibility
Do not infer eligibility. Halt code selection if records are unclear.
- Record the inputs: Log the Part B effective date, payer, source, verification date, and prior G0402/G0438/G0439 dates.
- Reconcile the history: Compare payer history with the local chart. Patient recollection is not proof of coverage.
- Stop on conflicts: Halt code selection if the history is missing or conflicting.
- Reverify changes: Check eligibility again after material scheduling or payer changes.
How to manage add-on codes
| Service | Operational control |
|---|---|
| 99497 / 99498 (ACP) | Confirm voluntary participation, current time thresholds, participants, topics, distinct time boundaries, practitioner, modality, modifier, and payer rules. |
| G0136 | Never use for HRA administration. Verify the current code-year meaning: this is a physical activity and nutrition assessment service. Validate the tool, time/frequency, diagnosis, and payer requirements. |
| Same-day E/M | Report only a significant, separately identifiable, medically necessary service. Append modifier 25 to the E/M code when supported by separate documentation. |
Diagnosis and documentation requirements
CMS requires a supported diagnosis on the claim, but does not prescribe one universal AWV diagnosis. Do not add conditions merely to pass an edit.
Retain the following documentation:
- The completed HRA.
- Applicable histories and measurements.
- Cognition and risk reviews.
- Current provider list.
- Written screening schedule.
- Risk and intervention list.
- Personalized advice and referrals.
- Practitioner authentication.
- Separate add-on evidence (if billed).
Recommended pre-claim review gates
Note: These are recommended review gates, not CMS-mandated deterministic rules or a shipped FairPath billing engine.
- Benefit history: Benefit history matches the selected code.
- AWV elements: Applicable first/subsequent elements are complete and reviewed.
- Claim data: Diagnosis, practitioner, setting, authentication, and telehealth data are supported.
- Add-ons: Add-ons and E/M services are independently supported with no overlapping time.
- Record retention: The submitted claim version is retained.
Claim-readiness checklist
- [ ] Eligibility source and date retained.
- [ ] Correct G-code selected.
- [ ] Required record authenticated.
- [ ] Diagnosis supported.
- [ ] Modifier 25 supported (when used).
- [ ] Add-on and telehealth rules verified.
How to manage denials and corrections
- Capture the record: Save the remittance, reason code, original claim, and relevant dates.
- Classify the cause: Identify if it is an eligibility, code, modifier, diagnosis, documentation, provider, telehealth, or payer issue.
- Correct supported fields only: Never backfill work that did not occur.
- Preserve the trail: Keep original and corrected versions, rationale, owner, and final outcome.
Sources (public)
FairPath is designed to handle this complexity for you.
While most platforms simply record what happened, FairPath actively runs the program. It continuously monitors every patient, staff action, and billing rule across CCM, RPM, RTM, and APCM, intervening immediately when a requirement is missed.
This allows you to scale your own program without losing quality, breaking trust with physicians, or losing control of your revenue. We provide the precision of an automated medical director without the chaos.