CPT 93668Cardiology

Peripheral vascular rehab

CPT code 93668 covers supervised rehabilitation therapy for patients with peripheral artery disease (PAD), typically involving structured exercise programs to improve leg circulation and walking ability.

Showing rates for

National Average

Base Medicare rate

$14.23

This calculator gives a typical-case estimate using standard Medicare modifier rules. Actual payment depends on payer policies, documentation, code-specific CMS status indicators, and locality. Verify before billing.

RVU breakdown

Work RVU

PE RVU (NF)

0.43

MP RVU

0.01

Total RVU

0.44

Conversion factor: 32.3465 · Source: CMS MPFS RVU25A · Confidence: High

NCCI bundling edits

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Billing tips

Bill only one unit (93668 x1) per session regardless of session length, as this is a per-session code not based on time increments
Impact: Prevents automatic denials from overcoding; ensures consistent $14.23 per session payment
Verify the patient has documented diagnosis of peripheral arterial disease (ICD-10 I70.x codes) with claudication symptoms prior to initiating billing
Impact: Medical necessity denials are the #1 reason for 93668 rejections; proper diagnosis coding prevents 60-80% of denials
Document that continuous ECG monitoring and blood pressure checks were performed during the session, as these are required components
Impact: Absence of monitoring documentation can trigger downcoding or denial on audit; protect full $14.23 reimbursement
Maintain a physician-signed treatment plan with exercise prescription, frequency, and duration before billing first session
Impact: Required for Medicare coverage; missing treatment plan results in 100% payment denial averaging $300-500 per 12-week program
Check if payer requires prior authorization for peripheral vascular rehab programs; many commercial payers require pre-approval for series of sessions
Impact: Retroactive denials of entire program common without authorization; can result in $500-1,500 write-offs per patient
Do not bill 93668 on the same day as cardiac rehabilitation codes (93797-93798) unless separate and distinct programs with modifier 59
Impact: Bundling edits will deny one service; modifier 59 when appropriate preserves the $14.23 payment

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Frequently asked questions

What is the 2025 Medicare reimbursement rate for CPT code 93668?

The 2025 Medicare national average payment rate for CPT 93668 is $14.23 per session for both facility and non-facility settings. This is based on a total RVU of 0.44 multiplied by the 2025 conversion factor of 32.3465.

How many sessions of peripheral vascular rehab (93668) does Medicare cover?

Medicare covers up to 36 sessions of peripheral vascular rehabilitation over a 12-week period when medical necessity criteria are met under NCD 20.35. This typically translates to 3 sessions per week. Additional sessions may be covered with documented medical necessity showing continued improvement.

What diagnosis codes are required to bill CPT 93668?

CPT 93668 requires peripheral arterial disease diagnosis codes from the I70.x series, specifically those indicating atherosclerosis with intermittent claudication (such as I70.211-I70.719). The diagnosis must document both PAD and claudication symptoms to meet medical necessity requirements.

Can CPT 93668 be billed on the same day as cardiac rehabilitation codes?

Generally no, CPT 93668 should not be billed with cardiac rehabilitation codes (93797-93798) on the same date unless the patient is enrolled in completely separate and distinct programs with different diagnoses and treatment plans. Modifier 59 would be required with extensive documentation justifying both services.

What is the difference between CPT 93668 and cardiac rehab codes?

CPT 93668 is specifically for peripheral arterial disease rehabilitation focusing on claudication and walking improvement, while cardiac rehab codes (93797-93798) are for cardiac conditions. The key differences are the primary diagnosis (PAD vs cardiac disease), exercise focus (walking tolerance vs cardiac conditioning), and monitoring requirements specific to each condition.

What supervision level is required for billing CPT 93668?

CPT 93668 requires indirect physician supervision, meaning the physician must be immediately available but does not need to be present in the room during the session. The program must have a physician medical director, and sessions must be conducted by appropriately trained clinical staff such as exercise physiologists or registered nurses.

Does CPT 93668 require prior authorization from insurance?

Medicare does not require prior authorization for 93668, but coverage criteria under NCD 20.35 must be met. However, many commercial insurance plans do require prior authorization for peripheral vascular rehabilitation programs. Always verify payer-specific requirements before initiating treatment to avoid retroactive denials.