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    OpenPayerBilling CodesDiagnostic Ultrasound Procedures of the Abdomen and RetroperitoneumCPT cpt-76776-transplant-kidney-ultrasound-color-doppler
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    CPT 76776: Ultrasound of Transplanted Kidney(s) with Color Doppler

    Medicare pays $100 on average nationally for this procedure.

    CPT code 76776 describes an ultrasound examination of transplanted kidney(s) using gray-scale sonography with color Doppler (duplex Doppler) to evaluate renal parenchyma and vascular flow in the intrarenal vessels and the renal arterial and venous inflow/outflow; service type: diagnostic ultrasound with Doppler vascular assessment; typical site of service: hospital outpatient imaging suite, outpatient radiology clinic, or transplant center imaging unit.

    For related coverage guidance, see recent payer policy updates: Percutaneous Electrical Nerve Field Stimulation for Functional Abdominal Pain Disorders, Esophagogastroduodenoscopy (EGD) Coverage Policy, Radiofrequency Therapy for Fecal Incontinence.

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    Clinical & Coding Specifications

    Clinical Context

    A 48-year-old man with a deceased-donor kidney transplant 6 months prior presents to the outpatient transplant clinic for routine surveillance and because of a recent rise in serum creatinine from baseline. The transplant nephrologist orders a diagnostic ultrasound of the transplanted kidney with color Doppler (duplex) to evaluate perfusion, vascular anastomoses, and intrarenal blood flow. The patient arrives at the hospital's outpatient imaging center. A registered sonographer performs the study, obtaining grayscale images to assess size, echogenicity, fluid collections, and hydronephrosis, and color and spectral Doppler to evaluate arterial and venous flow, resistive indices, focal stenosis at the renal artery anastomosis, and possible thrombosis. The interpreting radiologist or transplant surgeon reviews images and issues a report noting resistive indices, presence or absence of perinephric collections, vascular patency, and any findings suggestive of rejection, obstruction, or vascular complication. Results are communicated to the transplant nephrology team for integration with laboratory data and clinical management.

    Related CPT Codes

    CPT CodeDescriptionRelationship to This Procedure
    76770Ultrasound, retroperitoneal (eg, kidneys, adrenal glands); completeMay be used when a more comprehensive renal/retroperitoneal survey is required beyond the transplanted kidney evaluation.
    76775Ultrasound, transplanted organ (eg, kidney), real time with image documentation; completeClosely related — alternative codes for transplanted organ ultrasound; 76776 specifically includes color Doppler duplex; 76775 may be used for grayscale-only studies.
    93975Duplex scan of renal arteries including evaluation of renal transplant vasculature, complete studyMay be used when a dedicated duplex arterial evaluation of the renal artery is performed in addition to or instead of the transplant kidney ultrasound to evaluate stenosis.
    76942Ultrasonic guidance for needle placement (eg, biopsy, aspiration, injection), imaging supervision and interpretationUsed when ultrasound guidance is required for percutaneous biopsy or aspiration of perinephric collections discovered during the transplant ultrasound.
    88720Calculated panel for tacrolimus or immunosuppressant drug levels (example - laboratory code)Often ordered in conjunction with imaging when dysfunction is suspected; represents the laboratory monitoring commonly paired in clinical workflow.

    Related Modifiers

    7 rows

    ModifierDescriptionWhen to Use
    26Modifier 26 (Professional Component) identifies and bills only the professional portion of a split service — the physician’s interpretation, report, and medical judgment — when the technical…- Use CPT Modifier -26 when you are billing only the professional component (PC) of a split‑bill eligible service—i.e., you performed the physician interpretation, medical judgment and prepared a…
    59Modifier 59 indicates a distinct procedural service when two procedures that are not normally billed together are clinically and procedurally separate. The CPT definition (as reiterated by CMS)…- Use modifier -59 to report a distinct procedural service when documentation supports that the procedure reported is not normally billed together with another service on the same day because of a…
    52Modifier ‑52 (Reduced Services) indicates that a service or procedure was partially reduced or omitted at the provider’s discretion, allowing reporting of the basic procedure number with a qualifier…- Use modifier -52 when a physician or qualified health professional electively reduces or omits part of a procedure or service (for example, performing fewer required views or omitting a portion of…
    53Modifier 53 (Discontinued Procedure) signals that a surgical or diagnostic service was begun by the physician but terminated because of extenuating circumstances that threatened the patient’s…- Use modifier -53 when a physician/qualified healthcare professional has started a surgical or diagnostic procedure (e.g., anesthesia administered, incision or scope insertion) and then discontinues…
    76Modifier -76, Repeat Procedure or Service by Same Physician or Other Qualified Health Care Professional, is appended when the same provider performs an identical, medically necessary procedure or…- Use modifier -76 when the same physician or other qualified health care professional performs an identical procedure or service a second (or subsequent) time on the same date of service and the…
    77Modifier 77 indicates that a previously performed procedure or service was legitimately repeated by a different physician or other qualified health care professional. The AMA’s CPT definition…- Use modifier 77 when a basic procedure or service already performed is repeated by a different physician or other qualified health care professional (for example, a second provider independently…
    22Modifier –22 (Increased Procedural Services) is used when a reported procedure is substantially more extensive than normally required. The CPT Manual and CMS state it may be appended only when the…- When to use: Append modifier -22 to a procedural CPT code when the service performed is substantially more extensive than the usual service described by that code — i.e., the procedure required…

    Related Provider Taxonomies

    8 rows

    Taxonomy Code
    207RC0000X
    208000000X
    207L00000X
    2081H0002X
    207NI0002X
    207SC0300X
    207PP0204X
    253Z00000X

    Related Payer Policy Updates

    Specialty: Gastroenterology1 / 3

    10 rows

    PolicyPayerEffective Date
    Percutaneous Electrical Nerve Field Stimulation for Functional Abdominal Pain Disordersbcbsvermont2026-12-01
    Esophagogastroduodenoscopy (EGD) Coverage Policyevicore2026-11-05
    Radiofrequency Therapy for Fecal IncontinenceCigna2026-10-15
    Magnetic Sphincter Augmentation for the Treatment of Gastroesophageal Reflux Disease (GERD)univerahealthcare2026-10-15
    High-Resolution Anoscopy (HRA)Premera Bluecross2026-10-01
    Gastroesophageal and Gastrointestinal (GI) Services and ProceduresColorado Rocky Mountain Health Plans2026-10-01
    Serum Testing for Hepatic Fibrosis in the Evaluation and Monitoring of Chronic Liver DiseaseOscar Health2026-10-01
    Fecal Analysis in the Diagnosis of Intestinal Dysbiosis and Fecal Microbiota Transplant TestingOscar Health2026-10-01
    Pancreatic Enzyme Testing for Acute PancreatitisOscar Health2026-10-01
    Helicobacter pylori TestingOscar Health2026-10-01

    Related Codes

    CPT-76700-COMPLETE-ABDOMINAL-ULTRASOUND

    CPT 76700: Complete Abdominal Ultrasound with Real-Time Imaging

    CPT-76705-LIMITED-ABDOMINAL-ULTRASOUND

    CPT 76705: Limited Abdominal Ultrasound, Real-Time

    CPT-76706-ABDOMINAL-AORTA-ULTRASOUND-ANEURYSM-SCREENING

    CPT 76706: Abdominal Aortic Ultrasound for Aneurysm Screening

    CPT-76770-RETROPERITONEAL-ULTRASOUND-COMPLETE-REAL-TIME

    CPT 76770: Complete Retroperitoneal Ultrasound with Real-Time Imaging

    CPT-76775-LIMITED-RETROPERITONEAL-ULTRASOUND

    CPT 76775: Limited Retroperitoneal Ultrasound (Renal/Aortic)

    Frequently Asked Questions

    References

    1. 1.CPT® Codes and Descriptions. AAPC. Retrieved Aug 11, 2026.Maintains the CPT code set's official descriptions and guidelines, licensed from the American Medical Association, used as the definitional source for CPT codes on this page.
    2. 2.HCPCS Quarterly Update. Centers for Medicare & Medicaid Services (CMS). Retrieved Aug 11, 2026.CMS's quarterly release of HCPCS Level II codes and short/long descriptors, the source for HCPCS code definitions and update history.
    3. 3.ICD-10-CM Full Code List. Centers for Medicare & Medicaid Services (CMS). Retrieved Aug 11, 2026.CMS's complete ICD-10-CM diagnosis code list, used to cross-reference diagnosis codes associated with this procedure or service.
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