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    OpenPayerBilling CodesDiagnostic Radiology (Diagnostic Imaging) Procedures of the Spine and PelvisCPT cpt-72133-lumbar-spine-ct-with-and-without-contrast
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    CPT 72133: CT Lumbar Spine Without and With Contrast

    Medicare pays $137 on average nationally for this procedure.

    CPT code 72133 describes a computed tomography (CT) examination of the lumbar spine performed first without intravenous contrast and then followed with contrast imaging; service type: diagnostic imaging (CT lumbar spine with and without contrast); typical site of service: outpatient imaging center or hospital radiology department.

    For related coverage guidance, see recent payer policy updates: Navigated Transcranial Magnetic Stimulation for Preoperative Brain Mapping, Navigated Transcranial Magnetic Stimulation for Preoperative Brain Mapping, Navigated Transcranial Magnetic Stimulation for Preoperative Brain Mapping.

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    Table of contents

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    Clinical & Coding Specifications

    Clinical Context

    A 58-year-old patient presents to the outpatient radiology clinic with progressive low back pain and radicular symptoms to the left lower extremity following a work-related lifting injury. The referring spine surgeon requests a lumbar spine CT with and without contrast to evaluate for suspected neoplasm, infection with epidural extension, complex postoperative changes, or to better characterize an indeterminate lesion seen on prior MRI. The patient registers at the imaging front desk, completes screening for contrast allergies and kidney function; serum creatinine and eGFR are verified per facility protocol. The CT technologist performs a non-contrast lumbar spine CT first to document baseline bone and soft-tissue attenuation. If no contraindication is found, IV access is obtained and iodinated contrast is administered; post-contrast images are then acquired to assess enhancement patterns of lesions, abscesses, or vascular structures. The interpreting radiologist reviews both non-contrast and contrast-enhanced series, documents findings, and issues a final report to the referring provider. Billing is submitted as 72133 for the combined non-contrast and contrast-enhanced lumbar spine CT study, with appropriate modifiers applied as indicated by the site of service, professional component, or unusual circumstances.

    Related CPT Codes

    CPT CodeDescriptionRelationship to This Procedure
    72131CT lumbar spine; without contrast materialOften used when only non-contrast imaging is performed; 72133 includes both without and with contrast, so 72131 may be used if contrast is not given.
    72132CT lumbar spine; with contrast material(s)Used when only contrast-enhanced images are obtained; 72133 combines non-contrast and contrast series and supersedes single-phase codes when both phases are performed.
    72141CT pelvis; without contrast materialMay be performed in the same session when pathology extends into the pelvis or when combined lumbar-pelvis evaluation is indicated.
    70450CT head/brain; without contrastFrequently part of broader trauma imaging protocols — may be performed separately in polytrauma patients.
    73700CT lower extremity, any joint; without contrastMay be performed for referred pain or to evaluate related osseous injuries in trauma workflows.

    Related Modifiers

    8 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…
    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…
    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…
    50Modifier –50 (Bilateral Procedure) is appended to a CPT code when an identical procedure is performed on paired anatomical structures during the same operative session. The AMA states to add…- Use modifier -50 when the same CPT surgical, diagnostic, or radiology procedure is performed on paired anatomical structures (both sides of the body) during the same operative/session by the same…
    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
    207L00000X
    2084P0800X
    2086S0102X
    2279E0002X
    103TA0400X
    261QM1103X
    2086S0122X
    291900000X

    Related ICD-10-CM Codes

    23 rows

    ICD-10-CM CodeDescription
    G96.11Dural tear
    M43.16Spondylolisthesis, lumbar region
    M47.26Other spondylosis with radiculopathy, lumbar region
    M47.27Other spondylosis with radiculopathy, lumbosacral region
    M48.07Spinal stenosis, lumbosacral region
    M51.14Intervertebral disc disorders with radiculopathy, thoracic region
    M51.16Intervertebral disc disorders with radiculopathy, lumbar region
    M51.25Other intervertebral disc displacement, thoracolumbar region
    M51.26Other intervertebral disc displacement, lumbar region
    M54.16Radiculopathy, lumbar region

    Showing 1–10 of 23

    Related Payer Policy Updates

    Specialty: Neurology/Neurosurgery1 / 3

    10 rows

    PolicyPayerEffective Date
    Navigated Transcranial Magnetic Stimulation for Preoperative Brain Mappingpremerabluecrossofwashington2027-02-05
    Navigated Transcranial Magnetic Stimulation for Preoperative Brain Mappingpremerabluecrossofwashington2027-02-05
    Navigated Transcranial Magnetic Stimulation for Preoperative Brain Mappingpremerabluecrossofwashington2027-02-05
    Calcitonin Gene-Related Peptide (CGRP) Inhibitors: Vyepti (eptinezumab-jjmr)Mass General Brigham Health Plan2027-01-04
    Clinical Review Criteria Intraoperative Neurophysiological Monitoring (IONM)Kaiser Permanente2027-01-01
    Open Neuroplasty Lumbar PlexusCigna2026-12-15
    Laser Interstitial Thermal TherapyCigna2026-11-15
    Remote Electrical Neuromodulation for Migraines (i.e., Nerivio®)bcbsvermont2026-11-01
    Lumbar Microdiscectomyuniverahealthcare2026-10-15
    Artificial Cervical Intervertebral Discuniverahealthcare2026-10-15

    Related Codes

    CPT-72020-SINGLE-VIEW-SPINE-RADIOGRAPH

    CPT 72020: Single-View Radiograph of a Specific Spinal Level

    CPT-72040-CERVICAL-SPINE-XRAY-2-3-VIEWS

    CPT 72040: Cervical Spine X‑ray, 2–3 Views

    CPT-72050-CERVICAL-SPINE-XRAY-4-5-VIEWS

    CPT 72050: Cervical Spine X‑ray, Four to Five Views

    CPT-72052-CERVICAL-SPINE-XRAY-SIX-OR-MORE-VIEWS

    CPT 72052: Cervical Spine X‑ray, Six or More Views

    CPT-72070-THORACIC-SPINE-X-RAY-AP-LATERAL

    CPT 72070: Thoracic Spine X‑ray, AP and Lateral

    CPT-72072-THORACIC-SPINE-XRAY-3-VIEWS

    CPT 72072: Thoracic Spine X‑ray, Three Views

    CPT-72074-THORACIC-SPINE-XRAY-SERIES-4-VIEWS

    CPT 72074: Thoracic Spine X‑ray, Minimum 4 Views

    CPT-72080-THORACOLUMBAR-JUNCTION-X-RAY

    CPT 72080: Thoracolumbar Junction Spine X‑ray, Minimum Two Views

    CPT-72081-FULL-THORACIC-LUMBAR-SPINE-SINGLE-PROJECTION

    CPT 72081: Thoracic and Lumbar Spine Single‑Projection Radiograph

    CPT-72082-THORACIC-LUMBAR-SPINE-RADIOGRAPHY-SCOLIOSIS-EVALUATION

    CPT 72082: Full Spine Radiographic Projections for Scoliosis Evaluation

    Showing 1–10 of 53

    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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