CPT Code 99396: Periodic Preventive Visit, Established Patient (40-64 Years)

CPT code 99396 reports a periodic comprehensive preventive medicine evaluation for an established patient aged 40 through 64. 

It belongs to the preventive medicine E/M category and carries no MDM level, no time threshold, and no component-counting requirement. 

Code selection depends on whether the encounter is a genuinely preventive, age-appropriate well visit for an established patient in the specified age bracket.

Medicare does not separately pay for 99396. Medicare covers its preventive benefit through the Annual Wellness Visit (G0438/G0439) — not CPT preventive codes. 

Commercial payers widely cover 99396, and the ACA preventive-care mandate requires ACA-compliant plans to cover it at $0 patient cost-sharing when billed with appropriate preventive diagnosis codes. 

The commercial median reimbursement sits around ~$199, reflecting the broader screening scope for the 40-64 population compared to younger age brackets.

What does CPT code 99396 cover?

The 40-64 age bracket opens the door to several age-triggered screening guidelines that do not apply to younger patients. 

Colorectal cancer screening begins at 45, cardiovascular risk assessment becomes standard, and diabetes screening criteria apply more broadly. 

The preventive visit at this age carries a wider scope than the 18-39 bracket billed under 99395.

Detail	CPT 99396
Description	Periodic comprehensive preventive visit, established patient, 40-64 years
Category	Preventive Medicine E/M
Patient type	Established only
Age range	40-64 years
Medicare coverage	Not separately payable (use G0438/G0439)
Commercial rate (median)	~$199
Commonly compared with	CPT 99386

When should you use CPT 99396?

Correct use of 99396 requires three conditions to be true at the same time — the patient must be established, aged 40-64, and the visit must be genuinely preventive in nature. Falling short on any one of those three sends the claim to a different code.

Use CPT 99396 when

• The payer is commercial or Medicaid (not Medicare)
• The patient is aged 40 through 64 at the date of service
• The patient is established (seen within the past three years)
• The encounter is a periodic preventive evaluation — not problem-oriented

A 52-year-old established patient arrives for an annual physical. 

The physician reviews family history, performs age-appropriate cancer screening recommendations, orders a fasting lipid panel, and counsels on exercise and tobacco cessation. 

No acute complaint is addressed. The visit is billed as 99396 with diagnosis Z00.00.

When not to use it

Some encounters look like a 99396 visit but belong under a different code — wrong patient type, wrong payer, or a visit driven by a specific complaint rather than prevention.

• New patient → use 99386
• Medicare → bill G0438 or G0439 instead
• Problem-focused visit → bill established-patient E/M (99211-99215)
• Wrong age bracket → use 99395 (18-39) or 99397 (65+)

How is CPT 99396 selected?

Unlike standard E/M codes, 99396 has no MDM grid, no time threshold, and no element-counting requirement. Selection rests entirely on three encounter-level facts that must all be true at the date of service.

The first factor is encounter type — the visit must be preventive in nature, not driven by a specific complaint or active symptom. The second is patient status — the patient must be established, meaning they have been seen by any physician in the same group within the past three years. The third is age — the patient must be between 40 and 64 at the date of service.

When a new or existing problem surfaces during the preventive visit and the physician addresses it beyond what the preventive exam normally covers, the problem-oriented work supports a separate E/M (99211-99215) with modifier 25. Both the preventive note and the problem-oriented note need independent documentation.

What documentation supports CPT 99396?

The note for 99396 must demonstrate that the visit was preventive in nature and age-appropriate in scope. Payers review preventive claims for documentation that supports the wellness purpose of the encounter, not just the diagnosis code attached to it.

Required documentation elements include:

• Preventive-focused physical examination
• Immunization review and administration, if indicated
• Age-appropriate history review (personal, family, and social)
• Risk factor assessment for cardiovascular disease and diabetes.
• Counseling on behavioral risk factors, like tobacco use, alcohol intake, & physical activity levels
• Cancer screening recommendations appropriate for the 40–64 population (colorectal, breast, cervical, and lung, where applicable)

Mental health screening should also be documented when performed.

When a problem is addressed during the same visit, the problem-oriented documentation must stand on its own — separate chief complaint, separate assessment, separate plan. 

A single blended note risks a denial on both the preventive and the E/M claim.

How much does CPT 99396 reimburse?

Reimbursement for 99396 depends entirely on payer type. Medicare does not pay for CPT preventive codes at all, which creates a split billing workflow for practices that see both Medicare and commercial patients for wellness visits.

Payment type	2026 rate
Medicare	Not separately payable
Commercial payers (median)	~$199
Medicaid	Varies by state

Commercial median from FAIR Health national cost estimate data (2026). ACA-compliant plans cover at $0 patient cost-sharing with Z00.00/Z00.01.

At ~$199, 99396 reimburses higher than 99395 (18–39 bracket, ~$184) and lower than 99397 (65+, ~$202). The rate reflects the broader clinical scope and screening obligations for the 40–64 age group. 

Practices that miss the same-day E/M add-on when a problem is addressed alongside the preventive visit leave revenue on the table — the problem E/M reimburses separately and does not reduce the 99396 payment.

Practices that miss the same-day E/M add-on when a problem is addressed alongside the preventive visit leave revenue on the table — the problem E/M reimburses separately and does not reduce the 99396 payment.

Which modifiers apply to CPT 99396?

Preventive codes use fewer modifiers than standard E/M, but the two that apply to 99396 are high-stakes for claim accuracy.

Modifier	When it applies
25	Appended to the separately reported problem E/M when a significant, separately identifiable problem is addressed on the same day as the preventive visit
33	Appended to 99396 itself to flag the service as ACA-preventive, which triggers $0 patient cost-sharing on ACA-compliant plans

Modifier 25 is the most audit-sensitive modifier on same-day preventive claims. 

The OIG modifier-25 audit found widespread overuse, so the documentation supporting the problem E/M must clearly establish a separate chief complaint, separate history of present illness, and a distinct plan that goes beyond what the preventive exam normally covers.

CPT 99396 vs. 99386 — which one fits?

The only difference between 99396 and 99386 is patient status. 

Both cover the same age range, the same clinical scope, and the same screening obligations. Getting the wrong one triggers a denial for incorrect patient classification — the most common error on preventive visit claims.

Feature	CPT 99396	CPT 99386
Patient type	Established	New
Age range	40-64	40-64
Commercial rate (median)	~$199	~$220
Medicare	Not payable	Not payable
Encounter type	Periodic wellness	Initial wellness

Choose 99396 when the patient has been seen by any provider in the same group within the prior three years and is returning for a periodic preventive visit. 

Choose 99386 when the patient is new to the practice (or has not been seen by any provider in the group within three years) and presents for an initial preventive evaluation.

The ~$21 rate difference reflects the higher documentation burden on new patient encounters — more comprehensive history gathering, baseline examination findings, and initial risk stratification.

What billing errors should you avoid with CPT 99396?

Preventive visit claims carry specific error patterns that differ from standard E/M billing. 

Most denials on 99396 come from payer mismatches, age verification failures, and documentation gaps on same-day problem visits. 

Each of these is preventable at the front desk or during charge entry:

1. Billing 99396 to Medicare 

Medicare does not recognize CPT preventive codes. Submitting 99396 to a Medicare plan results in an automatic denial, not a reduced payment. 

The correct codes for Medicare preventive coverage are G0438 (initial Annual Wellness Visit) and G0439 (subsequent AWV). Practices that see mixed payer populations need separate encounter workflows — commercial patients get 99396, Medicare patients get the G-code equivalent. 

Failing to split the workflow creates denials that back up accounts receivable for weeks.

2. Wrong age bracket at date of service 

99396 covers patients aged 40 through 64. A patient who turns 65 before the date of service falls into the 99397 bracket, and a patient still 39 at the date of service belongs under 99395. 

Age verification happens at scheduling and again at check-in — relying on a birth year alone without confirming the exact date of birth against the service date produces avoidable claim rejections.

3. Missing modifier 25 on the same-day problem E/M 

When a physician addresses a significant problem during a preventive visit, the problem-oriented E/M (99211-99215) requires modifier 25 to indicate a separately identifiable service. 

Without modifier 25, the payer bundles the problem E/M into the preventive visit and pays only the 99396 rate. The lost revenue on the E/M is entirely recoverable with proper modifier assignment and independent documentation.

4. Billing a complaint-driven visit as preventive 

An encounter driven by a specific symptom, condition follow-up, or medication review is not a preventive visit — even if the patient was scheduled for a wellness exam. 

When the chief complaint is a problem (knee pain, uncontrolled blood pressure, medication refill), the primary code should be a standard E/M, not 99396. 

Practices that default every annual visit to the preventive code risk payer audits and recoupment demands when the documentation reveals problem-oriented care without a genuine preventive component.

5. Using a problem-oriented diagnosis as the primary ICD-10 

99396 requires a preventive diagnosis code as the primary ICD-10 — typically Z00.00 (encounter for general adult medical examination without abnormal findings) or Z00.01 (with abnormal findings). 

Listing a problem-oriented diagnosis (hypertension, diabetes, hyperlipidemia) as the primary code signals to the payer that the visit was not preventive, which can trigger a denial or reclassification. 

Problem diagnoses belong on the separately billed E/M line, not on the 99396 line.

Frequently asked questions about CPT 99396

Here are some commonly asked questions about 99396 CPT code: