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CPT Code 93925: 2026 Billing, Documentation and Reimbursement Guide

CPT code 93925 lower-extremity arterial duplex billing 2026 hero banner: complete bilateral study versus 93926 unilateral or limited, B-mode plus color-flow and spectral Doppler components required, ABI not included in the duplex code, Modifier 26 for interpretation-only and TC for technical-only, and same-day NCCI edits with physiologic testing codes 93922-93924, from One O Seven RCM.

The 93925 CPT code reports a complete bilateral duplex scan of the lower-extremity arteries or arterial bypass grafts. The study combines structural imaging with blood-flow analysis and covers both legs in the same session. CPT 93926 is the code you’ll see when the study only covers one leg or a limited portion of the vascular tree.

Complete and limited are two different services with two different codes. The report has to match what happened in the room, not what the schedule predicted. A code description alone doesn’t establish medical necessity or coverage.

Your payer’s current policy and your MAC’s rules still apply on top of the code definition. They don’t always agree with each other, and checking both before you bill saves you a rework cycle later.

At a Glance

QuestionDirect answer
What does 93925 report?Complete bilateral lower-extremity arterial duplex
What anatomy is evaluated?Native arteries or arterial bypass grafts
What is the limited code?CPT 93926
Is it a venous study?No. Venous duplex uses a different code family

This guide was put together by One O Seven RCM, and it covers the full set of CPT 93925 billing guidelines: the code definition, the technical service, medical necessity, documentation, coding comparisons, modifiers, reimbursement, and denial prevention for 2026.

CPT 93925 Quick Facts for Healthcare Providers

The 93925 CPT code sits inside the non-invasive extremity arterial studies section of the CPT code set, maintained by the AMA CPT resources. It covers lower-extremity arteries or arterial bypass grafts, and it represents a complete bilateral study that combines anatomic imaging with Doppler flow assessment.

The code itself doesn’t define coverage, authorization, or payment. Those depend on the payer and the documentation, not on the code description alone.

What the 93925 CPT code does not report:

  • A unilateral or limited arterial duplex (that’s 93926)
  • A venous duplex examination
  • A carotid duplex study
  • A renal artery duplex study
  • A simple handheld Doppler exam without imaging
  • An ABI-only service
  • An invasive angiogram

That list exists because it needs to. Several ranking articles on this topic blend arteries, veins, and abdominal imaging into one explanation, and a coder working from that kind of source ends up billing the wrong family of codes entirely.

Quick-Facts Table

AttributeDetail
Code93925
Service typeDuplex arterial imaging
AnatomyLower-extremity arteries or bypass grafts
LateralityBilateral
ExtentComplete
Limited alternative93926
Venous equivalentSeparate code family
Primary usersVascular, cardiology, radiology, and imaging providers

What Does CPT 93925 Include?

A billable 93925 CPT code study combines B-mode (grayscale) imaging, color-flow Doppler, spectral Doppler analysis, and a formal interpretation backed by saved images. Skip any one of those pieces and you no longer have a duplex study for coding purposes. Payers don’t all phrase their documentation requirements the same way, so don’t assume identical wording across every policy.

B-mode or grayscale imaging shows the arterial anatomy itself: vessel walls, plaque, narrowing, occlusion, and the structure of a bypass graft. This part of the study answers what the vessel looks like, not how the blood is moving through it.

Color-flow Doppler shows the direction of blood flow, changes in flow pattern, and areas of turbulence that suggest narrowing or occlusion. Color alone doesn’t establish a final diagnosis. It points the sonographer toward where the spectral analysis needs to happen.

Spectral Doppler and waveform analysis measures flow velocity, waveform shape, and hemodynamic changes across the vessel. Peak systolic velocity numbers belong in the report because they’re clinically relevant and reviewed by a qualified vascular specialist, not because a machine generated them.

The technical record needs to support what happened during the exam, and the interpreting provider has to issue a signed report that connects the findings to an impression. Record-retention length depends on the authority governing your practice, not one universal number you can apply everywhere.

ComponentWhat it evaluatesDocumentation evidence
B-mode imagingAnatomySaved images
Color-flow DopplerFlow direction and patternColor images
Spectral DopplerVelocity and waveformSpectral tracings and measurements

Cardiology, vascular, and diagnostic imaging groups need vascular billing support built around this level of technical detail, because the report, the code, and the billed component all have to describe the same service.

When Is CPT 93925 Medically Necessary?

CPT 93925 medical necessity comes down to a specific clinical question the study is meant to answer. The study may be medically necessary when a provider needs bilateral arterial imaging to evaluate suspected or known lower-extremity arterial disease, pin down the location or severity of an obstruction, assess a bypass graft, or guide treatment.

A clinical indication supports the study. It doesn’t guarantee coverage on its own. The diagnosis, the order, the medical record, and the applicable payer policy all have to line up together.

Symptoms and exam findings that commonly support ordering the study:

  • Intermittent claudication
  • Ischemic rest pain
  • Diminished or absent pulses
  • Cold or pale extremity
  • Nonhealing wound or ischemic ulceration
  • Tissue loss or gangrenous change
  • Suspected arterial trauma or aneurysmal disease

Skip vague notes like “leg pain” with nothing else attached. The chart needs anatomical and clinical context the payer can evaluate.

Known disease and treatment planning cover a different set of reasons for ordering the study: known peripheral arterial disease, disease progression, planning before an intervention, follow-up when the result could change management, or evaluation before a vascular procedure. Post-revascularization evaluation may also apply, depending on the payer’s policy.

Arterial bypass graft evaluation looks at graft patency, suspected graft stenosis, and changes in symptoms or exam findings since the last study. Surveillance intervals depend on the payer and the clinical picture. Don’t treat one follow-up frequency as if it applies everywhere.

Before ordering, walk through five questions:

  1. Is there a specific arterial clinical question?
  2. Will bilateral duplex imaging answer it?
  3. Is the result expected to change treatment?
  4. Does the order state the reason for the study?
  5. Does the payer’s current policy support the service?

CMS notes that Medicare coverage can depend on local coverage documents and the contractor’s jurisdiction. A code’s active fee-schedule status doesn’t by itself establish national coverage. Check the applicable policy by state and MAC through the CMS Medicare Coverage Database before you schedule a non-emergent study.

What Makes CPT 93925 a Complete Bilateral Study?

“Bilateral” means both legs get evaluated. “Complete” means the documented exam represents the full service the code expects, not a focused or partial look. The code has to match the service performed and reported, not the service scheduled.

Bilateral documentation for the 93925 CPT code should separate right and left findings clearly: velocities, waveforms, stenosis or occlusion, graft findings where relevant, and a bilateral impression. A report that details one side and dismisses the other as “normal” without supporting data doesn’t meet that bar.

Anatomical scope. The record should identify which arterial segments or grafts the sonographer examined. No single fixed national list of mandatory vessels applies across every payer and protocol, so treat commonly assessed segments as protocol-dependent, not as a universal CPT requirement.

When the study is incomplete. Only one extremity gets evaluated. Only a focused region gets assessed. The exam stops before the expected bilateral work finishes. Required imaging or Doppler components are missing. Any of those should push you toward reconsidering 93926 instead, which is exactly where the next section picks up.

Complete-study checklist:

  • Both lower extremities evaluated
  • Arterial anatomy or graft identified
  • B-mode imaging documented
  • Color-flow imaging documented
  • Spectral analysis documented
  • Findings reported separately by side
  • Saved images available
  • Signed interpretation completed
  • Final impression matches the findings
Complete bilateral serviceUnilateral or limited service
Both lower extremitiesOne side or focused region
Full documented studyRestricted documented scope
Bilateral findingsUnilateral or limited findings
Supports 93925 when all requirements are metGenerally points toward 93926

CPT 93925 vs. CPT 93926: Complete Bilateral vs. Unilateral or Limited

The 93925 vs. 93926 decision comes down to laterality and completeness. CPT 93925 generally represents a complete bilateral lower-extremity arterial duplex. CPT 93926 generally represents a unilateral or limited study. Code selection depends on the service you performed and documented, not solely on what the order originally requested.

When CPT 93925 applies: both lower extremities got evaluated, the study was complete, the required duplex components were performed, the report supports both sides separately, and the final interpretation reflects a complete bilateral service.

When CPT code 93926 applies: only one lower extremity was studied, the exam was limited to a focused area, the planned bilateral study didn’t get completed, documentation doesn’t support a complete bilateral exam, or a focused graft or arterial segment was evaluated.

Don’t default to modifier 52 here. Determine first whether CPT 93926 accurately represents the service you performed. Appending modifier 52 just because a bilateral study was ordered but not completed skips a step; modifier selection depends on the exact circumstances and the payer’s rules. Section 10 covers the full modifier discussion.

93925 vs. 93926 at a glance

Coding factorCPT 93925CPT 93926
LateralityBilateralUnilateral or limited
ExtentCompleteLimited or focused
Primary documentationBoth sides fully supportedOne side or limited scope
Typical riskOvercoding an incomplete studyUndercoding a complete bilateral study
Decision basisPerformed and documented servicePerformed and documented service

Three quick examples. Both legs evaluated with all required duplex components, right and left findings, and an overall impression points toward CPT 93925. Only the right arterial bypass graft evaluated points toward CPT 93926.

A bilateral study stopped early, leaving incomplete bilateral data, calls for reassessing whether CPT 93926 better describes what got performed. Don’t assume modifier 52 applies without a payer-policy check first.

CPT 93925 vs. 93922, 93923, and 93924: Duplex Imaging vs. Physiologic Testing

The 93925 CPT code, sometimes called the arterial Doppler CPT code for the lower extremities, is a duplex imaging service. CPT 93922, 93923, and 93924 describe non-invasive physiologic arterial testing at different service levels.

An ABI or physiologic test isn’t what defines CPT 93925. Reporting both service families on the same date requires distinct work, documentation, medical necessity, and a current edit check.

In the 93925 vs. 93924 comparison specifically, 93925 measures arterial anatomy, blood-flow characteristics, velocity changes, waveform findings, stenosis or occlusion, and graft patency, while 93924 adds treadmill stress testing to a physiologic protocol that doesn’t image the vessel at all.

Physiologic arterial testing generally evaluates segmental pressures, pulse volume recordings, Doppler waveforms, ankle-brachial measurements, and exercise testing where applicable. It’s functional evidence of arterial disease rather than an anatomic picture of it.

Is ABI included in CPT 93925? No. A provider may perform ABI as part of the patient’s broader vascular evaluation, but it isn’t the defining service CPT 93925 represents.

Whether you can separately report physiologic testing depends on the documented work, medical necessity, current NCCI edits, and payer policy. Some competitor content describes ABI as an inherent part of 93925. That description is inaccurate and worth correcting in your own coding workflow.

Same-day reporting of both service families needs separate documentation for each, and a modifier alone doesn’t create medical necessity. Current NCCI and payer policies still apply. Section 11 covers the complete same-day billing rules.

FeatureCPT 93925CPT 93922 to 93924
Service typeDuplex imagingPhysiologic testing
Primary outputImages, velocities, and waveformsPressures and physiologic waveforms
Anatomy visualizedYesNot the primary service
ABI relationshipMay be clinically relatedCan be part of the physiologic service
Same-day reportingRequires separate reviewRequires separate review

Practices billing both service families regularly benefit from reviewing physiologic testing rules alongside duplex imaging rules; One O Seven RCM’s coding guides cover both in more depth than fits here.

CPT 93925 Documentation Requirements

Meeting CPT 93925 documentation requirements starts with the order and ends with a signed report. Skipping any layer in between is where most audit findings originate.

Documentation has to establish why the study was ordered, why bilateral arterial imaging was medically necessary, what technical components got performed, which arteries or grafts got evaluated, and what the findings were on each side.

It also has to show who interpreted the study and whether the final report supports a complete bilateral service. These CPT 93925 billing guidelines apply whether the study runs through a hospital outpatient department or an independent vascular lab.

Order and medical-necessity documentation should include the treating provider’s order or referral where required, the specific clinical indication, relevant history, symptoms and their location, exam findings, known arterial disease, prior intervention or graft history, the clinical question the study answers, and the expected impact on management. A diagnosis code by itself isn’t medical-necessity documentation.

Technical documentation covers the date of service, patient identification, confirmation of a bilateral exam, the arteries or grafts evaluated, B-mode imaging, color-flow imaging, spectral Doppler analysis, velocity measurements where appropriate, waveform findings, saved or retrievable images, an explanation of any omitted portions, and technical personnel identification where required.

Interpretation and final report should separate right and left findings, describe stenosis or occlusion with location and severity, address graft patency where relevant, compare to any prior exam, state a diagnostic impression, note clinical correlation or follow-up where appropriate, and carry the interpreting practitioner’s signature and completion date.

What audit-risk documentation gaps look like: a missing indication, vague “leg pain” wording with no context, only one side documented, missing spectral findings, missing images, an unsigned report, or findings that don’t support the impression.

Other red flags include a complete bilateral code used for a limited study, a diagnosis code that doesn’t match the clinical record, and a repeated exam with no documented change or reason. Don’t assign specific denial percentages to these categories without your own dataset behind them.

Pre-bill audit checklist

Audit questionPass criteriaAction if missing
Is the order valid?Specific study and indicationObtain or clarify documentation
Are both sides supported?Separate bilateral findingsReassess code selection
Is duplex technology documented?Imaging, color, and spectral dataReview technical record
Does the impression match findings?Consistent reportQuery the interpreting provider
Does the payer policy apply?Current policy checkedValidate MAC or payer requirements
Is the report signed?Authenticated final reportComplete before billing

A focused CPT coding audit compares the order, the technical data, the final interpretation, the code selection, and the payer policy before recurring errors turn into denials or audit findings. That comparison is exactly what a CPT coding audit is built to catch, covering CPT accuracy, medical necessity, modifier misuse, documentation support, and revenue leakage.

CMS materials emphasize that medical records must support medical necessity, and that diagnostic testing has to tie back to the treating practitioner’s management of the patient. That’s why checking the CMS Medicare Coverage Database for the current policy matters more than relying on an unrelated article.

Need a Second Review Before the Claim Is Submitted?

One O Seven RCM provides full-service medical billing at 3% of payer collections, including coding validation, claim submission, denial management, and AR follow-up, with no upfront fee and no setup charges. Practices adding providers or expanding vascular and cardiology services also get straightforward provider credentialing support.

If any of the documentation gaps above sound familiar, a free billing audit is a reasonable next step before the claim goes out the door.

ICD-10-CM Coding and Medicare Coverage for CPT 93925

The diagnosis has to reflect the documented reason for the arterial duplex. Your ICD-10-CM code needs to agree with the order, the symptoms, the exam findings, the known disease, and the final report.

A diagnosis appearing in a billing article doesn’t automatically guarantee payment. CPT 93925 Medicare coverage can differ by MAC, jurisdiction, effective date, and associated LCD or billing article, and commercial and Medicare Advantage plans may apply different rules on top of that.

Common diagnosis families, organized by clinical purpose rather than one uncontrolled code list:

Atherosclerosis and peripheral arterial disease covers native artery atherosclerosis, bypass graft atherosclerosis, intermittent claudication, rest pain, ulceration, gangrene, and other documented manifestations of PAD. Laterality and manifestation should match the medical record, not the code that happens to reimburse best.

Abnormal clinical findings that may support the study include diminished or absent pulses, abnormal vascular exam, ischemic skin changes, cold extremity, nonhealing wound, and suspected arterial insufficiency. Don’t select a symptom code when a confirmed, documented diagnosis is already available in the chart.

Graft and post-intervention evaluation covers arterial bypass graft status, suspected graft stenosis, suspected occlusion, a change in symptoms after revascularization, and follow-up where the result is expected to affect management.

Diagnosis specificity rules. Coders should verify artery type, right/left/bilateral involvement, native artery versus bypass graft, claudication versus rest pain versus ulceration versus gangrene, ulcer location and severity when documented, and acute versus chronic status where relevant. Push for more specific coding only when the clinical note documents that specificity.

Verifying Medicare coverage:

  1. Open the CMS Medicare Coverage Database.
  2. Search CPT 93925.
  3. Select the provider’s state or jurisdiction.
  4. Identify the responsible MAC.
  5. Review both the LCD and its associated billing article.
  6. Confirm the document’s status and effective date.
  7. Check diagnosis support, limitations, modifiers, and frequency language.
  8. Save evidence of the policy you used for the date of service.

CMS maintains separate ICD-10 resources and Medicare Coverage Database tools. Direct your team to the applicable current policy rather than treating one contractor’s article as a national rule. Searching “LCD 93925” or “93925 LCD” directly in the database is often faster than browsing by category when you already know the code.

Documentation elementCoding implicationClaim risk when absent
Specific arterial conditionSelect supported diagnosis familyMedical necessity denial
LateralityMatch right, left, or bilateral diseaseDiagnosis and report mismatch
Disease manifestationCapture documented claudication, rest pain, ulceration, or gangreneLoss of clinical specificity
Graft involvementDistinguish native artery from graft conditionIncorrect diagnosis family
Clinical reason for repeat studyDocument measurable change or surveillance purposeFrequency-related denial

Payer coverage verification should confirm benefits, plan-specific authorization requirements, network status, and applicable medical policies before a scheduled non-emergent study. That verification step doesn’t mean CPT 93925 universally requires authorization; it depends on the payer, plan, and diagnosis.

CPT 93925 Modifiers and Professional, Technical, and Global Billing

The 93925 CPT code may be billed globally when the same eligible entity performs the technical and professional components, with modifier 26 when billing only the professional interpretation, or with modifier TC when billing only the technical component.

Place of service, equipment ownership, employment or contractual arrangement, who performed the work, payer policy, and the claim form and facility billing rules all determine which option applies.

Modifier 26 generally identifies the professional component. Documentation should support physician or qualified practitioner interpretation, a formal written report, authentication, the date of interpretation, and the clinical findings and impression. Merely reviewing another physician’s report isn’t the same as a separately billable professional component.

Modifier TC generally identifies the technical component: equipment, supplies, technologist work, image acquisition, measurements, technical data, and image storage. Not every facility submits TC on a professional claim form; institutional billing can follow a different claim and payment system entirely.

Global billing applies when one eligible billing entity properly bills the complete service, without 26 or TC. Verify place of service, ownership, reassignment, facility status, payer rules, and whether another entity already submitted a component before assuming global applies.

Modifier 52 shouldn’t be the automatic answer when a planned bilateral service comes up incomplete. Work the sequence in order: determine what you performed, then determine whether CPT 93926 describes the unilateral or limited service.

Review the payer’s instructions next. Consider modifier 52 only when the reported code and the reduced-service circumstances clearly support it.

Modifier 76 may communicate a repeat procedure by the same physician or qualified professional. It doesn’t establish medical necessity by itself, doesn’t override a frequency policy, and doesn’t guarantee separate payment. The record still has to explain why repeating the study was reasonable and necessary.

Billing circumstanceReporting directionRequired support
Interpretation onlyCPT 93925 with modifier 26Signed final interpretation
Technical service onlyCPT 93925 with modifier TCTechnical performance record
Complete global serviceCPT 93925 without 26 or TCBoth components performed by eligible entity
Unilateral or limited serviceFirst assess CPT 93926Documentation of actual study scope
Repeat serviceReview modifier 76 and payer policySeparate medical necessity
Reduced serviceReview code selection before modifier 52Reason service was reduced

Getting CPT 93925 modifiers right is only half the picture. Ownership, place of service, coding, claim submission, payment posting, and denial follow-up all have to agree, which is exactly the connected work covered under revenue cycle management services rather than treated as isolated coding decisions.

Can CPT 93925 Be Billed With Other Vascular Studies?

The 93925 CPT code may be reported with another vascular service only when each service is separately performed, medically necessary, fully documented, and permitted under current payer and NCCI rules. A modifier can’t be used to bypass an edit.

With physiologic arterial testing. Duplex imaging and physiologic testing answer different clinical questions. Before reporting 93925 with 93922, 93923, or 93924, verify a separate clinical reason, separate documented work, complete requirements for both services, the current NCCI edit, the modifier indicator, and payer or MAC policy.

With venous duplex. Arterial and venous studies can be clinically distinct when the provider is evaluating separate concerns, such as arterial insufficiency alongside venous thrombosis or venous reflux with different symptoms or differential diagnoses. Arterial and venous studies aren’t automatically payable together because they happened on the same day.

With CPT 93926. The same anatomical service generally shouldn’t get fragmented between a complete bilateral code and a unilateral or limited code without a clearly supportable, distinct circumstance. Review anatomy, laterality, study scope, separate orders, separate reports, the payer edit, and modifier eligibility before billing both.

NCCI verification workflow: use the edit files that apply to the date of service, identify the Column One and Column Two code pair, review the modifier indicator, read the relevant NCCI policy manual chapter, confirm distinct medical necessity, verify separate documentation, use a modifier only when the edit permits it, and retain the supporting records.

CMS publishes NCCI edits, Medically Unlikely Edits, and related policy manuals. Direct your team to the current files rather than quoting an edit without a date attached, since NCCI files change quarterly and a modifier doesn’t create medical necessity on its own.

Same-day combinationPrimary questionRequired action
93925 plus 93922 to 93924Were distinct imaging and physiologic services performed?Review NCCI and separate documentation
93925 plus venous duplexWere separate arterial and venous indications documented?Review medical necessity and payer policy
93925 plus 93926Are the services separate by anatomy or circumstance?Avoid duplicate or fragmented reporting
Repeat 93925Why was another complete study required?Document clinical need and frequency exception
Multiple providersWere components already billed?Prevent duplicate global, 26, or TC claims

CPT 93925 Reimbursement and the 2026 Medicare Fee Schedule

No single payment amount applies to every 93925 CPT code claim. CPT 93925 reimbursement can vary by payer, contract, Medicare locality, qualifying APM status, facility versus non-facility setting, which component you’re billing, geographic adjustment factors, date of service, claim edits, and patient benefits.

What is a CPT 93925 fee schedule? It’s the payer’s payment framework for the service. Medicare calculates payment using work, practice expense, and malpractice RVUs, geographic adjustments, and the applicable conversion factor. Commercial payers use contracted allowed amounts instead. The billed charge, the allowed amount, and the final payment are three different figures, not one.

The Medicare payment formula combines the work RVU, practice expense RVU, and malpractice RVU, each adjusted by its own Geographic Practice Cost Index, then multiplies the total by the conversion factor.

2026 conversion factors, as finalized in the CY 2026 Medicare Physician Fee Schedule final rule: $33.57 for qualifying APM participants and $33.40 for practitioners who don’t qualify.

Facility, non-facility, and component differences. Office-based global payment may include both professional and technical resources. Facility payment to the interpreting professional may represent only the professional component, and the technical portion may run through a different billing system entirely. Commercial contracts don’t necessarily follow Medicare amounts, and a published billed charge never equals expected collections.

Verifying current reimbursement: open the CMS Physician Fee Schedule search, select the correct year, enter CPT 93925, choose your locality, compare facility and non-facility rates, confirm global, 26, and TC values, verify QP or non-QP applicability, and compare that against your actual payer contract and remittance data.

2026 Medicare inputVerified figure or instruction
Qualifying APM conversion factor$33.57
Nonqualifying APM conversion factor$33.40
Geographic adjustmentApply locality-specific GPCIs
Code-specific paymentVerify in CMS search
Commercial paymentVerify contract
Patient responsibilityVerify benefits and remittance

Source: CMS Physician Fee Schedule and the 2026 Medicare Physician Fee Schedule final rule.

Compare the Cost of Managing Claims In-House

Fee-schedule knowledge doesn’t prevent revenue leakage if a practice lacks solid eligibility checks, accurate coding, claim scrubbing, denial follow-up, and payment variance review. One O Seven RCM provides full-service medical billing at 3% of payer collections, with no upfront fee and no setup charges.

Common CPT 93925 Denial Reasons and How to Prevent Them

CPT 93925 denial reasons tend to cluster into a short list: unsupported medical necessity, a diagnosis-and-documentation mismatch, an unsupported complete bilateral study, incorrect code selection, a missing or incorrect modifier, a duplicate or component billing conflict, an NCCI code-pair edit, a frequency limitation, a prior authorization issue, a missing order or signed report, and a timely filing or appeal deadline.

Medical necessity denial. Review the order, symptoms, exam findings, confirmed diagnosis, the relevant LCD or payer policy, treatment impact, the prior study, and the reason for repeat testing. Correction only makes sense when the existing record already supports the change; don’t alter documentation after the fact to manufacture coverage.

Complete study not supported. Check whether both extremities were evaluated, bilateral findings are documented, the required duplex components are present, images are retained, and the final interpretation supports a complete service. If the record only supports unilateral or limited work, reassess whether CPT 93926 is the accurate code.

Modifier or component denial. Check who performed the technical service, who interpreted the study, equipment ownership, place of service, whether another entity already billed TC, 26, or global, and whether the modifier is valid for that payer.

Frequency or repeat-study denial. Review the date of the previous study, current policy, new symptoms, a change in exam findings, post-intervention status, medical necessity for repetition, and the repeat-procedure modifier where applicable.

Authorization and payer-policy denial. Determine whether authorization was required, the correct CPT was authorized, the date range was valid, place of service matched, units matched, the patient’s plan changed, and the payer received the authorization number.

Denial categoryRoot-cause reviewPrevention control
Medical necessityOrder, diagnosis, policyPre-service policy validation
Complete study unsupportedBilateral technical and final reportPre-bill documentation audit
Wrong codeComplete versus limited scopeCoding decision checklist
Modifier errorComponent ownership and POSComponent billing matrix
NCCI editCode pair and modifier indicatorQuarterly edit validation
FrequencyPrior dates and clinical changeUtilization review
AuthorizationPlan and authorization recordPre-service verification
Duplicate claimTC, 26, or global already billedClaim history review

A corrected claim isn’t always the same thing as an appeal, and retrospective documentation still has to follow your practice’s compliance rules. Claims that remain unpaid after correction or appeal should move into structured unpaid claim follow-up before filing and appeal deadlines expire.

Are CPT-Related Denials Repeating?Coding denial management support looks at code selection, documentation, policy, modifiers, authorization, and appeal opportunity together, instead of resubmitting the same claim with the same gap.

CPT 93925 Coding Examples for Provider Claims

Example 1: Complete bilateral arterial duplex. Both lower extremities get evaluated using the complete duplex protocol. The report provides right and left findings, velocity and waveform data, saved images, and a signed bilateral interpretation. Coding direction: CPT 93925 may be appropriate when the record supports the complete bilateral service. Warning: don’t infer completeness from the scheduling order alone.

Example 2: Unilateral graft evaluation. Only the right lower-extremity bypass graft gets examined due to a new clinical concern. Coding direction: review CPT 93926, since the study is unilateral or limited. Warning: a facility protocol name containing “bilateral duplex” doesn’t make the bilateral code correct.

Example 3: Arterial duplex plus ABI-related physiologic testing. The provider performs a complete bilateral arterial duplex and a separately documented physiologic study for a distinct clinical purpose. Coding direction: validate the requirements for both services, review the current NCCI edit, and verify payer policy. Warning: an ABI value inside the duplex report doesn’t automatically establish a separately billable physiologic study.

Example 4: Repeat study after clinical change. A patient develops new ischemic symptoms after a prior exam. Coding direction: document the new clinical change, review frequency policy, and determine whether the repeat study is medically necessary. Warning: a repeat-procedure modifier doesn’t independently establish coverage.

Frequently Asked Questions About CPT Code 93925

What is CPT code 93925?

The short 93925 CPT code description is a complete bilateral lower-extremity arterial duplex: native arteries or arterial bypass grafts, imaging plus Doppler analysis, both sides evaluated in the same session. CPT 93926 is the code for the unilateral or limited version of the same study.

What is CPT code 93926?

In the 93925 vs. 93926 comparison, 93926 is the unilateral or limited counterpart. It reports a unilateral or limited lower-extremity arterial duplex, selected based on the work you performed and documented, and it isn’t part of the physiologic testing code family.

What is a CPT 93925 fee schedule?

It’s the payer’s payment framework for the service: the Medicare formula, the facility and non-facility distinction, professional and technical components, and commercial contract variation on top of all of it.

What are CPT 93990 and CPT 93985?

CPT 93990 concerns duplex evaluation of hemodialysis access. CPT 93985 concerns complete bilateral preoperative vessel assessment before creating hemodialysis access. Both belong to a different clinical and coding pathway from lower-extremity arterial CPT 93925; verify the current AMA descriptors before you rely on either one.

Is CPT 93925 bilateral?

Yes. Both lower extremities and complete documentation are required for the code to apply.

Is ABI included in CPT 93925?

No. ABI may get performed during a broader vascular evaluation, but it doesn’t define what CPT code 93925 represents. Separately reporting it requires complete physiologic work, medical necessity, documentation, and an edit review.

Can CPT 93925 and 93922 be billed together?

Possibly, when distinct services are fully performed and supported. Review NCCI, payer policy, and separate documentation before assuming so; nothing here promises payment.

Does CPT 93925 require prior authorization?

Not by default. It depends on the payer, the plan, the network, the diagnosis, the place of service, and the date, so verify authorization requirements before a scheduled service.

How often can CPT 93925 be billed?

There’s no single universal frequency rule that applies to every payer. Review clinical change, postoperative status, payer policy, MAC rules, and the prior service dates; a modifier doesn’t override frequency rules on its own.

What documentation supports CPT 93925?

The order and indication, a bilateral technical study, the required duplex components, separate right and left findings, saved images, a signed interpretation, and payer-policy support, all tied together in one consistent record.

Protect CPT 93925 Revenue With Accurate Coding and Complete RCM

CPT 93925 is for a complete bilateral lower-extremity arterial duplex. Whether the claim holds up depends on correct code selection, medical necessity, bilateral documentation, component billing, payer policy, and edit validation together, not any single piece of it. Verify current requirements for each date of service rather than assuming last year’s rule still applies.

Revenue loss happens when one layer fails: authorization, diagnosis coding, documentation, modifier selection, claim edits, payment variance, or denial follow-up. Any single gap is enough to turn a clean study into a written-off claim.

One Team for Coding, Claims, Denials, and Follow-Up

One O Seven RCM provides full-service medical billing at 3% of payer collections, with no upfront fee and no setup charges. Backed by AAPC-certified coders, it’s one of the more affordable, specialty-trained options cardiology and vascular practices have for keeping CPT 93925 claims clean from coding through payment.

For practices adding providers or expanding vascular and cardiology services, provider credentialing is available at $107 per insurance payer.

None of this guarantees reimbursement, and the final service scope gets set during an assessment specific to your practice. Credentialing timing varies by payer.

Get a Free Billing Audit or explore medical billing services to see where your CPT 93925 claims stand today.

About the Author

Carter Hensley

Carter Hensley is a professional medical billing content writer with a strong focus on coding accuracy, compliance, and revenue optimization. He develops detailed content around CPT procedures, ICD-10 classifications, AR follow-up, credentialing processes, and denial resolution strategies. His writing is designed to support healthcare providers with practical knowledge that improves clean claim rates and ensures adherence to payer guidelines. At One O Seven RCM, Carter produces expert-level content that bridges the gap between clinical documentation and efficient revenue cycle performance.

Recent Blogs

CPT Code 93925: 2026 Billing, Documentation and Reimbursement Guide

CPT 93922: ABI Billing, Documentation and Reimbursement Guide

93971 CPT Code: 2026 Billing, Documentation, Modifiers and Denial Prevention

93970 CPT Code: Complete Billing and Documentation Guide

Account Receivable in Medical Billing: The 2026 Guide for Healthcare Providers

99495 CPT Code: 2026 TCM Billing Rules, Documentation, and Denial Prevention

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