CPT 72100: Lumbosacral Spine X‑Ray, 2–3 Views

Headline: CPT code 72100: Lumbosacral Spine X‑Ray (2–3 Views) — Basic Diagnostic Imaging for Low Back Conditions

CPT code 72100 denotes a basic radiographic examination of the lumbosacral spine, typically performed with two or three views to visualize the lumbar vertebrae and sacrum. This common diagnostic service is a frontline tool for assessing acute back injuries, persistent numbness, degenerative changes, and causes of low back pain. As a low-cost, widely available imaging option, use of 72100 has implications for clinical pathways, imaging utilization, and initial triage decisions in emergency departments, outpatient clinics, and radiology centers.

Key payers covered in this analysis include Aetna, Blue Cross Blue Shield, Cigna Health, UnitedHealthcare, and Medicare. Readers will find a concise national overview of the clinical context for 72100, payer coverage considerations, standard settings where the service is delivered, and benchmarks where available. The publication highlights what clinicians and billing staff need to know about how this radiographic service is described, the typical clinical indications, and how it fits into broader diagnostic workups for low back symptoms.

Content sections include a clinical summary and intended uses, payer coverage patterns and common reimbursement themes, operative billing considerations, and data limitations where input data are incomplete.

Customize your policy alerts

Sign up for cpt 72100 policy alerts

Get alerted when payer policies referencing 72100 are released or updated.

Monitor payer policy activity

Receive email alerts as soon as relevant payer policies are published or updated.

Billing Code Overview

CPT code 72100 describes radiographic imaging of the lumbosacral spine, typically consisting of 2 or 3 views of the lumbar vertebrae and the sacrum. This service is a plain X-ray examination used to evaluate low back pain, back injuries, and neurologic symptoms such as persistent numbness originating from the lower spine.

Service type: Diagnostic radiology — plain radiographic examination of the lumbosacral spine
Typical site of service: Radiology department, hospital outpatient imaging center, or freestanding imaging center

Explore openpayer tools

View all tools

CPT 72100: Lumbosacral Spine X‑Ray, 2–3 Views

Headline: CPT code 72100: Lumbosacral Spine X‑Ray (2–3 Views) — Basic Diagnostic Imaging for Low Back Conditions

Customize your policy alerts

Sign up for cpt 72100 policy alerts

Get alerted when payer policies referencing 72100 are released or updated.

Monitor payer policy activity

Receive email alerts as soon as relevant payer policies are published or updated.

Billing Code Overview

Service type: Diagnostic radiology — plain radiographic examination of the lumbosacral spine
Typical site of service: Radiology department, hospital outpatient imaging center, or freestanding imaging center

Clinical & Coding Specifications

Clinical Context

A 46-year-old patient presents to an outpatient radiology center with a 3-week history of persistent low back pain after a work-related lifting injury. The patient reports localized lumbar pain without clear radicular symptoms but with limited range of motion and point tenderness over the lumbosacral region. The referring primary care physician orders lumbar spine radiographs to evaluate for vertebral fracture, degenerative change, or other structural causes.

The clinical workflow: patient checks in at the imaging facility, a radiology technologist verifies the order and patient identity, assesses pregnancy status when applicable, and performs positioning to obtain 2–3 radiographic views of the lumbar spine and sacrum. Images are acquired and sent to the PACS; a radiologist interprets the images and issues a report documenting alignment, vertebral body heights, disk space narrowing, osteophytes, acute fracture, and other relevant findings. The facility bills for technician-performed radiographic service using 72100 with appropriate facility or professional component modifiers as indicated.

Coding Specifications

Modifier	Description	When to Use
`26`	Professional component	Use when billing only the radiologist interpretation separate from facility technical component.
`TC`	Technical component	Use when billing only the facility/technician portion of the X-ray (equipment, technologist).
`50`	Bilateral procedure	Rare for lumbar spine; used if separate bilateral imaging code logic required (not typical for `72100`).
`59`	Distinct procedural service	Use when an unrelated separate radiographic service is performed the same day and must be distinguished.
`76`	Repeat procedure by same physician/tech	Use if the technologist repeats the lumbar series because of technical issues.
`77`	Repeat procedure by another physician/tech	Use if a second technologist repeats the series.
`53`	Discontinued procedure	Use if imaging is started but discontinued for patient safety or intolerance.
`91`	Repeat clinical diagnostic laboratory test	Not typically applicable to plain radiography; use only if payer specifically accepts for repeat imaging per policy.
`22`	Increased procedural services	Use when documentation supports unusually high complexity or difficulty for the imaging session.
`59`	Distinct procedural service	Use to indicate a separate service from another imaging procedure on the same day (listed above for emphasis).
`RT`	Right side	Use if laterality reporting is required by payer in conjunction with related service claim lines.
`LT`	Left side	Use if laterality reporting is required by payer in conjunction with related service claim lines.

Taxonomy Code	Specialty	Notes
2085P0200X	Diagnostic Radiology	Radiologists interpreting lumbar spine X-rays.
261QP0800X	Radiologic Technologist	Technologists who perform radiographic studies.
207RP1001X	Family Medicine	Primary care providers who commonly order lumbar spine X-rays.
207L00000X	Emergency Medicine	Emergency physicians ordering acute lumbar spine imaging.
207T00000X	Orthopedic Surgery	Orthopedists who may order or correlate radiographs with clinical care.

Related Diagnoses

ICD-10 Code	Description	Clinical Relevance
`M54.5`	Low back pain	Primary indication for lumbar spine radiographs to evaluate for structural causes.
`S33.5X0A`	Sprain of ligaments of lumbar spine, initial encounter	Evaluated with lumbar radiographs to assess for associated bony injury.
`M47.816`	Spondylosis without myelopathy or radiculopathy, lumbar region	Radiographs identify degenerative changes such as osteophytes and disk space narrowing.
`M51.26`	Other intervertebral disc displacement, lumbar region	Radiographs are initial imaging to assess alignment prior to advanced imaging.
`M48.06`	Spinal stenosis, lumbar region	Radiographs can show degenerative changes contributing to stenosis but MRI often follows.
`S32.010A`	Wedge compression fracture of lumbar vertebra, initial encounter	Radiographs are used to detect acute compression fractures after trauma.
`M54.16`	Radiculopathy, lumbar region	Radiographs may be obtained initially; MRI may be required for nerve root evaluation.

Related CPT Codes

CPT Code	Description	Relationship to This Procedure
`72020`	Radiologic examination, spine, thoracic; 2 or 3 views	Performed when thoracic spine evaluation is needed in addition to lumbar views for trauma or multi-region pain.
`72110`	Radiologic examination, pelvis; 1 or 2 views	Performed alongside `72100` when pelvic involvement or sacroiliac assessment is required.
`72114`	Radiologic examination, pelvis; complete, including sacroiliac joints	Used when a more comprehensive pelvic/sacroiliac evaluation is clinically indicated.
`72148`	Magnetic resonance (e.g., MRI) lumbar spine without contrast	Ordered when radiographs are non-diagnostic or suspected soft-tissue, neural element, or disk pathology.
`20550`	Injection, tendon sheath, ligament, trigger point (example musculoskeletal procedure)	Represents interventional procedures that may follow imaging if guided treatment is planned.
`72040`	Radiologic examination, skull, lesser number of views	Included as an example of other plain radiographic studies often billed from the same imaging suite when multisite trauma imaging is performed.

Related Codes

CPT-72020-SINGLE-VIEW-SPINE-RADIOGRAPH

CPT 72020: Single-View Radiograph of Specific Spine 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 Series, Minimum 4 Views

CPT-72080-THORACOLUMBAR-JUNCTION-X-RAY

CPT 72080: Thoracolumbar Junction Radiographs

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

CPT 72081: Single‑Projection Thoracic and Lumbar Spine Radiograph

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

CPT 72082: Thoracic and Lumbar Spine Radiography for Scoliosis Evaluation

Showing 1–10 of 53

Frequently Asked Questions

References

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.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.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.

Published by

Trek Health powers OpenPayer with a leading commercial payer intelligence platform, seamlessly converting fragmented payer data into actionable insights for provider organizations.

Trek Health ingests and normalizes Transparency in Coverage data and payer policy updates to give provider organizations a clear view of how commercial reimbursement behaves across markets, payers, and services. Our platform transforms raw payer disclosures into structured intelligence that supports contract evaluation, payer negotiations, and service line strategy. By combining market benchmarks with ongoing policy visibility, Trek helps teams identify variability, risk, and opportunity in commercial reimbursement. The result is faster insight, stronger negotiating positions, and more informed financial decisions.

Explore openpayer tools

View all tools

Clinical & Coding Specifications

Clinical Context

Coding Specifications

Modifier	Description	When to Use
`26`	Professional component	Use when billing only the radiologist interpretation separate from facility technical component.
`TC`	Technical component	Use when billing only the facility/technician portion of the X-ray (equipment, technologist).
`50`	Bilateral procedure	Rare for lumbar spine; used if separate bilateral imaging code logic required (not typical for `72100`).
`59`	Distinct procedural service	Use when an unrelated separate radiographic service is performed the same day and must be distinguished.
`76`	Repeat procedure by same physician/tech	Use if the technologist repeats the lumbar series because of technical issues.
`77`	Repeat procedure by another physician/tech	Use if a second technologist repeats the series.
`53`	Discontinued procedure	Use if imaging is started but discontinued for patient safety or intolerance.
`91`	Repeat clinical diagnostic laboratory test	Not typically applicable to plain radiography; use only if payer specifically accepts for repeat imaging per policy.
`22`	Increased procedural services	Use when documentation supports unusually high complexity or difficulty for the imaging session.
`59`	Distinct procedural service	Use to indicate a separate service from another imaging procedure on the same day (listed above for emphasis).
`RT`	Right side	Use if laterality reporting is required by payer in conjunction with related service claim lines.
`LT`	Left side	Use if laterality reporting is required by payer in conjunction with related service claim lines.

Taxonomy Code	Specialty	Notes
2085P0200X	Diagnostic Radiology	Radiologists interpreting lumbar spine X-rays.
261QP0800X	Radiologic Technologist	Technologists who perform radiographic studies.
207RP1001X	Family Medicine	Primary care providers who commonly order lumbar spine X-rays.
207L00000X	Emergency Medicine	Emergency physicians ordering acute lumbar spine imaging.
207T00000X	Orthopedic Surgery	Orthopedists who may order or correlate radiographs with clinical care.

Related Diagnoses

ICD-10 Code	Description	Clinical Relevance
`M54.5`	Low back pain	Primary indication for lumbar spine radiographs to evaluate for structural causes.
`S33.5X0A`	Sprain of ligaments of lumbar spine, initial encounter	Evaluated with lumbar radiographs to assess for associated bony injury.
`M47.816`	Spondylosis without myelopathy or radiculopathy, lumbar region	Radiographs identify degenerative changes such as osteophytes and disk space narrowing.
`M51.26`	Other intervertebral disc displacement, lumbar region	Radiographs are initial imaging to assess alignment prior to advanced imaging.
`M48.06`	Spinal stenosis, lumbar region	Radiographs can show degenerative changes contributing to stenosis but MRI often follows.
`S32.010A`	Wedge compression fracture of lumbar vertebra, initial encounter	Radiographs are used to detect acute compression fractures after trauma.
`M54.16`	Radiculopathy, lumbar region	Radiographs may be obtained initially; MRI may be required for nerve root evaluation.

Related CPT Codes

CPT Code	Description	Relationship to This Procedure
`72020`	Radiologic examination, spine, thoracic; 2 or 3 views	Performed when thoracic spine evaluation is needed in addition to lumbar views for trauma or multi-region pain.
`72110`	Radiologic examination, pelvis; 1 or 2 views	Performed alongside `72100` when pelvic involvement or sacroiliac assessment is required.
`72114`	Radiologic examination, pelvis; complete, including sacroiliac joints	Used when a more comprehensive pelvic/sacroiliac evaluation is clinically indicated.
`72148`	Magnetic resonance (e.g., MRI) lumbar spine without contrast	Ordered when radiographs are non-diagnostic or suspected soft-tissue, neural element, or disk pathology.
`20550`	Injection, tendon sheath, ligament, trigger point (example musculoskeletal procedure)	Represents interventional procedures that may follow imaging if guided treatment is planned.
`72040`	Radiologic examination, skull, lesser number of views	Included as an example of other plain radiographic studies often billed from the same imaging suite when multisite trauma imaging is performed.

Related Codes

CPT-72020-SINGLE-VIEW-SPINE-RADIOGRAPH

CPT 72020: Single-View Radiograph of Specific Spine 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 Series, Minimum 4 Views

CPT-72080-THORACOLUMBAR-JUNCTION-X-RAY

CPT 72080: Thoracolumbar Junction Radiographs

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

CPT 72081: Single‑Projection Thoracic and Lumbar Spine Radiograph

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

CPT 72082: Thoracic and Lumbar Spine Radiography for Scoliosis Evaluation

Showing 1–10 of 53

Frequently Asked Questions

References

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.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.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.

Published by

Trek Health powers OpenPayer with a leading commercial payer intelligence platform, seamlessly converting fragmented payer data into actionable insights for provider organizations.

CPT 72100: Lumbosacral Spine X‑Ray, 2–3 Views

Sign up for cpt 72100 policy alerts

Billing Code Overview

CPT 72100: Lumbosacral Spine X‑Ray, 2–3 Views

Sign up for cpt 72100 policy alerts

Billing Code Overview

Clinical & Coding Specifications

Clinical Context

Coding Specifications

Related Diagnoses

Related CPT Codes

Related Codes

What clinical service does CPT 72100 represent?

Which modifiers are commonly used with 72100 and when should they be applied?

Which related CPT codes might be billed alongside or after 72100?

What are common diagnostic indications and example clinical context for using 72100?

Which payers are referenced and does the page provide reimbursement amounts for 72100?

References

Clinical & Coding Specifications

Clinical Context

Coding Specifications

Related Diagnoses

Related CPT Codes

Related Codes

What clinical service does CPT 72100 represent?

Which modifiers are commonly used with 72100 and when should they be applied?

Which related CPT codes might be billed alongside or after 72100?

What are common diagnostic indications and example clinical context for using 72100?

Which payers are referenced and does the page provide reimbursement amounts for 72100?

References