CPT 93325Cardiology

Doppler echo color flow mapg

CPT code 93325 covers Doppler echocardiography with color flow velocity mapping, an add-on ultrasound technique that uses color to show blood flow direction and speed through the heart. This is always billed alongside a primary echocardiogram procedure to provide enhanced visualization of cardiac blood flow patterns.

Showing rates for

National Average

Base Medicare rate

$22.00

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

0.07

PE RVU (NF)

0.61

MP RVU

Total RVU

0.68

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

NCCI bundling edits

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Billing tips

Always bill 93325 as an add-on to a primary echocardiography code (93303, 93304, 93306, 93307, 93308, 93312, 93313, 93314, 93315, 93317, 93350, 93351)
Impact: Billing 93325 alone will result in automatic denial; proper pairing ensures the $22 reimbursement is received
Verify that color flow mapping was actually performed and documented separately from spectral Doppler; many payers are scrutinizing whether color flow adds diagnostic value beyond the base study
Impact: Documentation deficiencies are the leading cause of post-payment audits and recoupment for this code
Check payer-specific policies as some commercial payers consider 93325 bundled into comprehensive echo codes and do not pay separately
Impact: Can prevent denials and unnecessary appeals; some payers bundle this reducing expected revenue by $22 per study
Ensure the medical record clearly indicates which cardiac structures were evaluated with color flow mapping and what abnormalities were detected or ruled out
Impact: Specific documentation of clinical findings supports medical necessity and reduces audit risk by approximately 60-70%
Do not bill 93325 multiple times per encounter even if multiple views or structures are examined; it is reported once per session regardless of extent
Impact: Duplicate billing will trigger denial and potential fraud investigation; avoid overcoding to maintain compliance
Review NCCI edits quarterly as 93325 has numerous bundling relationships that change; particularly watch for updates to bundling with stress echo and TEE codes
Staying current with edits prevents denials and reduces claim rework time by 30-40%

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Frequently asked questions

What is CPT code 93325 used for?

CPT 93325 is an add-on code for Doppler echocardiography with color flow velocity mapping. It represents the additional work of using color-coded ultrasound to visualize blood flow direction and velocity through the heart's chambers and valves, and must always be billed with a primary echocardiography procedure code.

How much does Medicare pay for CPT 93325 in 2025?

Medicare pays $22 for CPT 93325 in 2025 (both facility and non-facility rates). This is based on 0.68 total RVUs multiplied by the 2025 conversion factor of 32.3465. The payment includes 0.07 work RVUs, 0.61 practice expense RVUs, and 0.00 malpractice RVUs.

Can CPT 93325 be billed alone?

No, CPT 93325 cannot be billed alone. It is designated as an add-on code (indicated by the '+' symbol in CPT) and must be reported in conjunction with a primary echocardiography procedure code such as 93303, 93304, 93306, 93307, 93308, or other base echo codes.

What is the difference between 93325 and spectral Doppler codes?

CPT 93325 represents color flow mapping that displays flow direction and velocity as colors overlaid on the 2D image, while spectral Doppler codes (like those included in complete echo studies) show flow as a waveform graph. Color flow provides spatial orientation of flow patterns, whereas spectral Doppler provides precise velocity measurements.

Do I need modifier 26 or TC when billing 93325?

Generally no. CPT 93325 does not have a professional component/technical component split recognized by Medicare. The code is billed globally without modifiers 26 or TC. Some facilities may use these modifiers for internal tracking, but Medicare pays the same rate regardless.

How many times can 93325 be billed per day?

CPT 93325 should typically be billed only once per session, regardless of how many cardiac structures are examined with color flow mapping. If a repeat study is medically necessary on the same day (rare circumstances), modifier 76 (repeat procedure by same physician) or 77 (repeat procedure by different physician) should be appended with documentation.

What documentation is required to bill 93325?

Documentation must include a clear statement that color flow Doppler was performed, identify which cardiac structures were examined, describe the flow patterns observed, explain the clinical indication for color flow imaging, and integrate these findings into the diagnostic interpretation. Images showing color flow data should be stored in the study archive.