Medicare Annual Wellness Visit (AWV): Coding, Billing, and Maximizing Revenue

The AWV Revenue Opportunity Most Practices Miss

The Medicare Annual Wellness Visit was created by the Affordable Care Act as a no-cost preventive benefit for Medicare Part B beneficiaries. No copay, no deductible, covered 100%. This makes it uniquely accessible—patients have no financial barrier to completing it.

Yet a 2023 Medicare Current Beneficiary Survey found that only 42% of eligible Medicare beneficiaries received an AWV in the prior year. For primary care practices with large Medicare panels, this means that 58% of eligible patients represent both uncaptured revenue and missed preventive care opportunities.

The math for a practice with 300 Medicare patients:

• AWV reimbursement: G0439 reimburses ~$155 nationally (2026 fee schedule)
• Same-day modifier 25 E/M visit: 60–70% of AWV patients have a qualifying problem to address, adding ~$92–$136
• HCC codes captured at AWV: properly documented chronic conditions increase RAF scores and capitation payments in MA arrangements
• Total revenue opportunity per AWV patient per year: $155–$291 from the visit alone, plus ongoing HCC-driven capitation increases

At 300 Medicare patients with 42% AWV completion: 180 AWVs billed × $155 = $27,900. Improving to 80% completion: 240 AWVs × $200 average (including same-day E/M) = $48,000. The difference—$20,100 annually—comes from scheduling and documentation process improvement, not additional clinical work.

The Three Medicare Wellness Visit Codes

Medicare Wellness Visit Code Comparison

Code	Name	When Eligible	2026 National Rate
G0402	Initial Preventive Physical Exam (IPPE / "Welcome to Medicare")	Once per lifetime, within first 12 months of Part B enrollment	~$174
G0438	Annual Wellness Visit, initial	After IPPE or 12 months after Part B enrollment; once per year	~$173
G0439	Annual Wellness Visit, subsequent	At least 12 months after previous AWV; once per year	~$155

Required Elements for G0438 and G0439

The AWV is a highly structured visit with required documentation elements. The visit fails to meet billing criteria if required elements are missing—and audit risk is real because the AWV's defined structure makes it easy for auditors to verify documentation compliance.

Required for Both G0438 and G0439

1. Health Risk Assessment (HRA): A structured questionnaire completed by the patient or through interview, covering:
   • Self-reported health status and functional status (ADLs)
   • Psychosocial risks (depression screening, social isolation, caregiver stress)
   • Behavioral health risks (tobacco, alcohol, substance use)
   • Activities of daily living and fall risk
   • Emergency health needs
2. Vital signs: Height, weight, BMI, blood pressure, and any other clinically relevant parameters
3. Cognitive assessment: Detection of cognitive impairment using a structured tool (Mini-Cog, MMSE, MoCA, or equivalent). The tool used and result must be documented.
4. Functional ability and safety: Assessment of fall risk (use a validated tool—Timed Up and Go, 30-second chair stand), hearing, activities of daily living, and home safety
5. Establishment of a medical and family history (G0438 only—for subsequent AWVs, update the existing history)
6. Review of current providers and suppliers
7. Written preventive care plan: A documented 5–10 year plan for age-appropriate preventive services. Must include which screenings are due, which are up-to-date, and referrals ordered.
8. List of risk factors and conditions with recommended interventions
9. End-of-life planning discussion (offer; document whether discussed and patient's preferences/whether advance directive exists)

Additional Element for G0438 Only

• Complete establishment of a first-time medical and family history (not just an update)

What the AWV Is NOT

Common errors that create audit risk:

• AWV is not a physical exam: Medicare does not cover a physical examination as part of the AWV benefit. Do not document a comprehensive physical examination within the AWV note—this conflates two different services and can look like billing for a service not rendered.
• AWV is not a problem-focused visit: Problems identified during the HRA can be addressed, but they should be billed as a separate E/M service with modifier 25—not incorporated into the AWV documentation.
• AWV cannot substitute for other evaluation: If the patient has an acute problem requiring evaluation and treatment, bill an E/M code for that problem—not G0439.

Same-Day Problem Billing: The Modifier 25 Strategy

When a problem is identified during the AWV that requires a significant, separately identifiable evaluation and management service, bill both the AWV code and an E/M code with modifier 25.

Qualifying scenarios:

• Cognitive screen is positive → physician performs additional cognitive evaluation, counsels patient and family, discusses next steps (neurology referral, safety assessment). Bill G0439 + 99214-25.
• Depression screen (PHQ-2) is positive → physician performs expanded PHQ-9, reviews medication history, starts antidepressant. Bill G0439 + 99213-25.
• Patient reports new knee pain → physician examines knee, orders X-ray, writes referral to orthopedics. Bill G0439 + 99213-25.
• Blood pressure elevated at visit → physician addresses uncontrolled hypertension, adjusts medication. Bill G0439 + 99213-25.

Documentation requirement: The note must have a clearly separate problem-focused section (subjective complaint, objective findings, assessment, and plan) that is distinct from the AWV elements. The E/M portion must stand alone as independently supportable—it cannot rely on AWV elements to justify its code level.

HCC Capture at the AWV: The Hidden Revenue Multiplier

The AWV generates a Medicare Part B claim that carries diagnosis codes. Every ICD-10 diagnosis listed on the AWV claim contributes to HCC risk score calculation for Medicare Advantage patients—if the appropriate codes are used.

At every AWV, review the full problem list and document each active chronic condition in the assessment with the appropriate ICD-10 specificity code:

• Document CHF with specific type (systolic/diastolic) and severity (NYHA class)
• Document diabetes with specific complications (nephropathy, neuropathy, retinopathy) rather than E11.9 alone
• Document COPD severity (J44.0 with frequent exacerbations vs. J44.1 with less frequent)
• Document all HCC-eligible psychiatric diagnoses (depression severity, bipolar type)

A patient whose AWV claim is submitted with 3 specific HCC codes instead of 3 unspecified codes may generate $500–$1,200 in additional annual capitation in Medicare Advantage arrangements—from the same visit, with no additional clinical work.

Building an AWV Scheduling System

1. Pull a list of all Medicare patients who have not had an AWV in the prior 11 months (or have never had one)
2. Schedule outreach: call or send a portal message offering the AWV as a free benefit, no copay
3. Offer the AWV as an add-on to any scheduled appointment with a Medicare patient who is AWV-eligible
4. Use a pre-visit HRA questionnaire sent to the patient before the appointment to reduce time spent during the visit collecting information
5. Target: 80%+ of eligible Medicare patients completing an AWV each calendar year

Krasyn's AWV workflow includes the structured HRA template, cognitive screening tool, preventive care plan generation, and care gap integration—all required elements in a single documented workflow. See the AWV workflow.