POCUS Reimbursement and Coding — Notes
CPT Coding Framework
Reimbursement for ultrasound procedures in the U.S. relies on the American Medical Association’s Current Procedural Terminology (CPT) codes, updated annually. CPT codes are used to bill for both diagnostic and procedural ultrasounds.
The American Medical Association’s Relative Value Scale Update Committee (RUC) assigns Relative Value Units (RVUs) to CPT codes. These RVUs are published in the Medicare Physician Fee Schedule (MPFS) on the CMS website and guide reimbursement levels.
RVUs cover three components per CPT code:
Work RVU (wRVU): physician time, effort, and expertise
Practice Expense RVU (PE RVU): overheads like equipment and facilities
Malpractice RVU (MP RVU): cost of malpractice insurance
Reimbursement is calculated by converting RVUs to a dollar amount using the CMS conversion factor (CF).
There are three coding outcomes for many ultrasound CPT codes depending on setting: global, professional component (PC), and technical component (TC).
Global code: covers both professional and technical components
Professional Component (PC): the physician’s interpretation and report
Technical Component (TC): machine use, technologist salary, archiving, and other overheads
In non-facility (office) settings, practice often bills global radiology codes (global codes cover both PC and TC).
In facility settings (e.g., ED, hospital outpatient/inpatient, radiology departments), charges are split between PC (billed by the physician) and TC (billed by the hospital).
The status code “A” indicates a code that is paid separately under the physician fee schedule. A PC/TC indicator of 1 identifies diagnostic tests for radiology services that have both a professional component and a TC.
Conversion Factor (CF) in 2025 example: CF = 32.3465 (down from 35.7751 in 2017). This influences how RVUs translate to reimbursement amounts.
The Medicare framework also includes Local Coverage Determinations (LCDs) and National Coverage Determinations (NCDs) that influence medical necessity and reimbursement in different regions.
ext{Medicare Allowable (TC)} = ( ext{wRVU} + ext{PE RVU} + ext{MP RVU}) imes ext{CONV}
ext{Medicare Allowable (PC)} = ( ext{wRVU} + ext{PE RVU} + ext{MP RVU}) imes ext{CONV}
Note: The same workflow under the RUC applies across radiology work settings, but reimbursement can vary by site of service and by whether TC is billed separately.
Reimbursement Landscape for POCUS
Point-of-care ultrasound (POCUS) adds value by expediting care, reducing radiation exposure, supporting safer procedures, and potentially lowering costs. CMS guidance since 2021 (office) and extended to ED/hospitals in 2023 affects how POCUS is billed in E/M contexts.
In some cases, POCUS is bundled into the medical decision-making (MDM) of an E/M service rather than billed as a separate CPT code. The decision depends on whether the ultrasound materially affects the E/M level and how documentation is structured.
The microeconomic environment for POCUS includes potential revenue from education and operational sources, with expenditures associated with leadership, equipment, materials, and workflow optimization.
Global vs Professional vs Technical: Office vs Facility Settings
Five-digit CPT codes are used to bill for diagnostic and procedural ultrasounds.
Global codes (office setting) bundle professional and technical components into one payment.
Facility settings (ED, hospital outpatient, inpatient) split the global code into Professional Component (PC) and Technical Component (TC).
Office setting (non-hospital): Global fee typically covers both PC and TC; the office bears equipment, sonographer, interpretation, malpractice, and overhead; payment is the global amount.
ED/hospital outpatient setting (facility): PC billed by physician; TC billed by hospital; outpatients billed under OPPS; inpatient settings often bundle TC into DRG payments for the admission.
In ED for 24/7 operation, the ED may bill TC separately with a revenue code (e.g., 450) to identify location; TC is the hospital’s responsibility for machine costs and supplies.
In inpatient care, professional components are billed separately by the physician, but TC is bundled into the DRG payment (or into the hospital’s bundled charges) when admitted.
Table concept (Table 28.1): illustrates professional and technical fees, site of service, and bundling for common settings.
Professional Component (PC) vs Technical Component (TC)
Professional Component (PC): the physician’s interpretation of the ultrasound image. Only licensed physicians or privileged licensed independent practitioners (LIPs) may bill the PC. Importantly, CPT does not require the interpreting physician to be present during image acquisition for diagnostic ultrasound; local privileging guidelines determine who may obtain images that are archived and used to generate PC interpretation.
Technical Component (TC): the equipment cost, ultrasound technician salary, archiving/overhead, and related practice expenses. In hospital settings, the hospital typically bills the TC. In ED settings, TC is often billed by the hospital; the TC charge may be bundled into related services (e.g., DRG) when appropriate.
For procedural ultrasounds, the PC covers interpretation of the diagnostic image associated with the procedure being performed by the same clinician. If the clinician is performing the ultrasound, they must physically perform the intervention to bill the PC, though the image acquisition need not be performed by the interpreter.
In ED/outpatient, archiving and image documentation are required to support the PC claim; in most facility settings, the TC is billed by the hospital.
Medicare Payment Pathways and POCUS Billing
Medicare patients in outpatient departments (ED, observation units, ambulatory surgery centers) are billed under the Outpatient Prospective Payment System (OPPS): professional fees are separate from facility (TC) fees.
The facility payment via OPPS typically bundles the TC with the overall procedure; in some example scenarios (e.g., ultrasound-guided line placements), the TC may be bundled into the line placement service (e.g., a DRG or APC-based payment).
When a Medicare patient is admitted (inpatient), the hospital is paid via DRG; the TC for ultrasound is typically bundled into the DRG payment, and the physician’s PC remains billable separately.
For outpatient Medicare, the professional and facility charges are separate; the CPT code is matched to an appropriate Ambulatory Payment Classification (APC) code for facility payment.
Example workflow in POCUS: ultrasound-guided peripheral IV may have the professional component billed for the venous access plus an add-on ultrasound-guided vascular access code; the TC for ultrasound is bundled into the line placement service reimbursement.
Handheld devices follow the same CMS/CPT billing rules; orders, archiving, and documentation requirements apply. HIPAA considerations apply to patient data on handheld devices. Stark Law and Anti-Kickback Statute (AKS) concerns apply to ownership/referral dynamics; CMS has not issued definitive opinions on handheld devices, so providers should avoid incentive structures tied to ultrasound performance.
RVUs, Payment Formulas, and 2025 Values
RVUs (work, practice expense, malpractice) are converted to payment using the CMS Conversion Factor (CF). The 2025 CF cited is 32.3465 (illustrative; refer to updated MPFS for current value).
Example RVU components for specific CPTs (from 2025 MPFS RVU files):
76705 (Echography, abdominal, B‑scan, limited): PC/TC values combine to a specific wRVU/PE/RVUs; table shows 0.59 work RVU in one example configuration.
76775 (Echography, retroperitoneal, limited): ~0.58 work RVU in example.
93308 (Echocardiography, transthoracic, real-time with image documentation, 2D): ~0.53 work RVU.
93971 (Duplex scan of extremity veins): ~0.45 work RVU.
93312 (Echocardiography, transesophageal, real-time with image documentation): ~2.30 work RVU.
The relationship of PC/TC and the CF means a given CPT code’s payment is driven by the RVUs and the CF, with bundling rules altering what portion is paid as PC vs TC in facility settings.
Table 28.4 shows the 2025 wRVU values for office and ED E/M levels; e.g., 99214 (office established) = 1.92 wRVU; 99285 (ED high complexity) = 4.00 wRVU.
Table 28.5 shows wRVU values for select ultrasound CPTs (76705 = 0.59; 76775 = 0.58; 93308 = 0.53; 93971 = 0.45; 93312 = 2.30).
The overall financial picture: E/M level changes can yield larger RVU increases than many POCUS codes, but exceptions exist (e.g., transvaginal ultrasound or transesophageal echocardiography can have higher RVUs).
Add-On Codes, Modifiers, and Coding Nuances
Add-on codes: Some CPTs can be billed as add-ons to a primary procedure (e.g., 76937 ultrasound guidance for vascular access). Add-ons must accompany a primary code and are denoted with a plus symbol in CPT.
Common modifiers (Table 28.3) used in POCUS:
-26 Professional component
-TC Technical component
-52 Reduced services (for limited studies when a complete code does not exist)
-59 Distinct procedural service (reporting two separate procedures on the same patient on the same day)
-76 Repeat procedure by the same physician
-77 Repeat procedure by a different physician
A few examples of how modifiers are used:
If a limited ultrasound exists, use -52 to reflect reduced services when a complete study code is not applicable.
If two physicians bill for the same procedure on the same patient encounter, the -76 or -77 modifiers may apply to distinguish repeat procedure by same or different physicians, respectively.
Diagnostic vs Procedural Codes on the same day: They may be billed separately if not subsumed by one another. For example:
Ultrasound guidance for vascular access (76937) is subsumed in vascular procedures like central line placement (e.g., 36556) but can be billed as an add-on to appropriate primary surgical codes when not subsumed.
If a limited ultrasound is followed by a complete ultrasound, CPT guidance requires careful documentation and potential coding consideration to avoid denial.
Nonphysician performance: Registered nurses or medics may perform ultrasound-guided IV placement; no PC can be billed if no Licensed Independent Practitioner is involved in the interpretation. If ultrasound guidance is used for a procedure performed by a non-physician, 76942 can be appended to the primary surgical code if no specific ultrasound-guided code exists; however, coverage varies by payer (e.g., as of 2023, Aetna may not cover ultrasound guidance for adult lumbar puncture in some cases).
Handheld devices and archiving: Handheld devices fall under same coding guidelines as portable ultrasound machines; orders, archiving, HIPAA considerations apply; image archiving must occur (not just on the machine). If the machine travels with the clinician, archiving on the device alone is not acceptable.
CPT Modifiers: Practical Details
Modifier -26: Professional interpretation with a signed report and archival images for facility/hospital-owned settings. For procedural ultrasound, the professional component involves the clinician performing the procedure.
Modifier -TC: Technical component; cost of machine, technician salary, overheads; typically billed by the hospital.
Modifier -52: Reduced services; used when a limited CPT code exists, or when a full CPT code exists but only a portion was performed.
Modifier -59: Distinct procedural service; used to report distinct procedures on the same day when not otherwise subsumed.
Modifier -76: Repeat procedure by the same physician; used for repeated procedures on the same patient encounter.
Modifier -77: Repeat procedure by a different physician; used when another physician performs the same procedure.
Specific POCUS Codes by Application (Core and Advanced)
Core emergency ultrasound (ACEP references): codes commonly used include
Cardiac: 93308 (limited transthoracic echocardiography, 2D)
Abdomen: 76705 (limited abdominal ultrasound, including gallbladder for stones)
Chest: 76604 (ultrasound of chest including pleura)
Pelvis: Female pelvic ultrasound codes: 76815 (obstetric limited pelvic; pregnant), 76817 (transvaginal obstetric), 76856 (abdominal/pelvic non-pregnant complete), 76857 (limited non-pregnant pelvis), 76830 (transvaginal non-pregnant pelvis)
Abdominal aorta and urinary tract:
AAA screening: 76706 (ultrasound, screening of aorta) and 76775 (limited retroperitoneal ultrasound)
Bladder: 51798 (bladder volume measurement by ultrasound, non-imaging); if imaging is performed, use pelvic ultrasound codes (e.g., 76857 or 76830 depending on pregnancy status)
Deep Vein Thrombosis (DVT): 93971 (compression ultrasound of lower extremity veins)
Soft tissue/musculoskeletal ultrasound: often uses 76882 (soft tissue/musculoskeletal), 76536, etc., with limited patterns and CPT guidance for injuries and masses
Ocular ultrasound: 76512 (ophthalmic ultrasound, diagnostic, B-scan)
Ocular foreign body: 76529
Thoracic ultrasound: 76604; chest ultrasound may not require full mediastinal evaluation to bill as complete in certain contexts; LCDs may differ by region
Ultrasound-guided procedures (non-driver tissue; guidance for needle placement):
76937 (ultrasound guidance for vascular access) – add-on code requiring real-time guidance documentation and a representative image
76942 (other needle placement ultrasound guidance) – non-named procedures; used alongside primary surgical codes (e.g., lumbar puncture) when no dedicated ultrasound-guided code exists
Ultrasound-guided procedures with catheter left in place (examples): 32555 (ultrasound-guided thoracentesis with catheter left), 20611 (joint aspiration with anesthesia guidance), 49083, 32555, 33016, etc. Some “left in place” codes exist (e.g., 32557, 10030, 49405, 49406)
Fascial plane blocks: New 2025 codes (64466, 64468, 64473) for fascial plane regional anesthesia; 76942 generally cannot be coded separately when using these blocks
Imaging Workflow: Clinician-Performed vs Radiology-Performed Ultrasound (Figure Reference)
The clinician-performed workflow emphasizes the following steps: order, image acquisition, interpretation, archiving, report generation, and communication of findings to the patient.
Reimbursement flows differently for PC vs TC depending on setting (office vs ED/hospital) and on whether the ultrasound findings alter the care plan and E/M level.
The flow chart in the text demonstrates two pathways: (1) code the ultrasound separately (PC) and improved E/M via separate CPT code, or (2) bundle into MDM to raise E/M complexity, depending on documentation and clinical necessity.
E/M Coding and the MDM Intersection
In 2021 CMS updated E/M guidelines for office settings; 2023 extension to ED/hospitals; these changes emphasize medical decision-making (MDM) over extensive H&P documentation in determining E/M level.
A keyMDM-related concept: an independent interpretation of a test can contribute to E/M level (Data grid). If the POCUS interpretation is used to determine the E/M level, it cannot be billed separately for that chart; it must be counted in MDM, or an alternate independent interpretation must be documented to support separate billing.
If POCUS helps achieve a higher E/M level, there’s a financial trade-off: higher E/M RVUs may exceed the value gained from the POCUS RVUs; exceptions exist for higher RVUs in transvaginal ultrasound or transesophageal echocardiography.
Practical strategy: document an alternate independent interpretation (e.g., ECG or X-ray) to preserve the ability to bill the POCUS separately while still using POCUS in the MDM for chart complexity if desired.
Images must be stored (archived) in either a local system or a hospital PACS; robust documentation is required for separate CPT coding and for MDM decisions.
Tables, Examples, and Practical Comparisons
Table 28.4: 2025 wRVU values for E/M office and ED encounters (examples)
99211: 0.18; 99212: 0.70; 99213: 1.30; 99214: 1.92; 99215: 2.80
99281: 0.25; 99282: 0.93; 99283: 1.60; 99284: 2.74; 99285: 4.00
Table 28.5: WRVU assignments for select ultrasound CPT codes (examples)
76705: 0.59
76775: 0.58
93308: 0.53
93971: 0.45
93312: 2.30
A practical figure (28.2) demonstrates two coding options for a chest-pain patient: (A) incorporate limited TTE into MDM for higher E/M level, or (B) code limited TTE separately and combine with E/M to reach a higher level.
The bundling principle: bundling of ultrasound and ultrasound-guided procedures into DRG/APC payments is common, especially for inpatient admissions under DRG payment; in outpatient settings, bundling of TC into OPPS can occur, depending on local guidelines.
Regulatory and Compliance Considerations
HIPAA: any device that records patient data (including handheld devices) is subject to privacy protections; patient rights to privacy apply to stored ultrasound data.
Stark Law: physician self-referral restrictions apply to ultrasound services; in some cases, handheld devices may have unclear implications; legal counsel should be consulted when structuring physician-owned ultrasound capabilities within hospitals to avoid Stark Law issues.
Anti-Kickback Statute (AKS): avoid incentive structures that tie compensation to ultrasound volumes or performance; CMS has not issued explicit opinions for handheld ultrasound, but care must be taken to prevent improper compensation tied to imaging volume.
LCDs (Local Coverage Determinations) and NCDs (National Coverage Determinations): LCDs can vary by jurisdiction and can significantly influence medical necessity and reimbursement; examples include transthoracic echocardiography training requirements in LCDs (e.g., L31848 in KY/OH; L28565 in KS/MO).
Medical necessity: Medicare Title XVIII requires that orders for tests be medically necessary. ICD-10 codes used for billing must align with LCD/NCD lists for the CPT code and reflect the clinical scenario. Examples: periumbilical abdominal pain (R10.33) with 76775; AAA screening is explicitly allowed (76706) but may be restricted to specific high-risk populations.
Front-end edits: carriers perform automatic checks, including ICD-to-CPT matching to LCDs; misalignment can lead to denial. When LCDs are not published for a CPT, it’s important to verify coverage with the local MAC.
MPPR (Multiple Procedure Payment Reduction): from 2012, CMS reduces professional reimbursement for multiple radiology studies performed by the same physician on the same date of service within the same family by 25%. The ultrasound family typically includes 76604, 76700, 76705, 76770, 76775, 76856, 76857, 76870, etc.
Documentation requirements for billing ultrasound:
Permanently recorded images for all diagnostic and procedural ultrasounds
Final written report for all radiology studies
An order from a clinician responsible for the patient
Medical necessity justification
Billing optimization: coders and clinicians should collaborate to optimize documentation and coding; when denials occur, identify patterns and consider appeals with evidence of medical necessity and value delivered by POCUS.
Quick Practical Guide to Professional Coding for POCUS
Know your site of service to determine global vs professional billing.
List the appropriate CPT code for the diagnostic or procedural ultrasound with associated modifiers.
List an ICD-10 code that supports medical necessity for the performed ultrasound.
Check updated local insurance carrier rules for reimbursement on commonly billed ultrasounds.
For imaging performed by non-physician personnel, determine whether PC can be billed (typically not) and whether a separate imaging guidance code (e.g., 76942) is appropriate.
Ensure that medical necessity is documented for every separate ultrasound CPT code; routine screening (except AAA) is generally not reimbursed.
For facility-based billing, remember that TC is billed by the hospital and PC by the physician; the same CPT code can be used with -TC and/or -26 modifiers as appropriate.
Obtain legal counsel for complex arrangements involving facility ownership of ultrasound equipment and billing for both PC and TC; Stark Law implications may arise.
Non-U.S. Billing and Global Perspectives
In other countries (Canada, Mexico, Great Britain, Australia), many emergency services are government-funded and billed through national health systems rather than individual CPT-based billing to patients or insurers. Hospitals may budget for ultrasound machines and supplies as part of annual budgeting rather than seeking separate reimbursement for each ultrasound.
The notes underscore the importance of understanding the local regulatory environment when considering international practice or cross-border education and practice.
Glossary of Key Terms
CMS: Centers for Medicare and Medicaid Services
CPT: Current Procedural Terminology
RVU: Relative Value Unit
wRVU: work RVU
PE RVU: practice expense RVU
MP RVU: malpractice RVU
MPFS: Medicare Physician Fee Schedule
CF: Conversion Factor
LCD: Local Coverage Determination
NCD: National Coverage Determination
OPPS: Outpatient Prospective Payment System
DRG: Diagnosis-Related Group
APC: Ambulatory Payment Classification
PC: Professional Component
TC: Technical Component
E/M: Evaluation and Management
MDM: Medical Decision-Making
AKS: Anti-Kickback Statute
HIPAA: Health Insurance Portability and Accountability Act
FAST: Focused Assessment with Sonography in Trauma
POCUS: Point-of-Care Ultrasound
LIP: Licensed Independent Practitioner
LCD/LCDs: Local Coverage Determinations (regional guidance for CPT codes)
NCD: National Coverage Determination (national guidance)
76937: Ultrasound guidance for vascular access (add-on code)
76942: Ultrasound guidance for other needle placement (add-on code)
64466/64468/64473: Fascial plane regional anesthesia blocks (2025 codes)
Summary of takeaways
POCUS reimbursement is a balance between PC and TC, site of service, and whether POCUS is billed separately or included in MDM.
Medicare rules emphasize E/M level determination via MDM, with independent interpretations potentially affecting billing. In some cases, it is financially advantageous to bill POCUS separately, in others to include it in MDM to raise E/M levels.
Documentation, archiving, medical necessity, and local payer rules are critical to successful reimbursement. Front-end edits (ICD-to-CPT alignment) can deny claims if not properly aligned.
The insurance landscape is complex and varies by payer, geography, and DRG/APC structures; ongoing education for coders and clinicians is essential.
Handheld ultrasound devices follow the same general rules but require careful attention to HIPAA, Stark/AKS considerations, and archiving practices.