Accurate knee radiography coding requires careful attention to imaging views, clinical documentation, and billing modifiers. The x ray right knee cpt code depends primarily on the number of diagnostic views performed. Healthcare providers commonly use CPT codes 73560, 73562, and 73564 for right knee radiographic examinations. Each code represents a different view count and affects claim submission.

Additionally, accurate laterality modifiers and supporting diagnoses help prevent unnecessary claim denials. Medical coders must also distinguish unilateral studies from bilateral examinations. This guide covers right knee X-ray CPT codes, radiographic projections, ICD-10-CM diagnoses, Medicare guidelines, and billing requirements.

X Ray Right Knee CPT Codes and Their Descriptions

The x ray right knee cpt code varies according to the documented number of radiographic views. Consequently, medical coders must review the completed examination before assigning the appropriate procedure code. The Centers for Medicare & Medicaid Services (CMS) recognizes the following knee radiography codes.

Centers for Medicare & Medicaid Services+1

These codes describe the imaging service, while modifiers communicate additional billing information. Therefore, accurate code selection requires both procedural and anatomical documentation.

CPT Code 73560 for Right Knee X-Ray – One or Two Views

CPT code 73560 describes a knee radiographic examination containing one or two views. Providers commonly perform these examinations when evaluating pain, swelling, suspected injuries, or other joint abnormalities.

For example, a radiologic technologist may obtain an anteroposterior and lateral projection. These two images provide different perspectives of the knee joint.

The appropriate reporting example is 73560-RT when the payer requires the right-side modifier. Therefore, searches for right knee x ray 2 views cpt code generally refer to CPT 73560.

CPT Code 73562 for Right Knee X-Ray – Three Views

CPT code 73562 represents a knee radiographic examination containing three diagnostic views. Providers may request this examination when additional anatomical assessment is necessary.

A typical examination may include AP, lateral, and sunrise projections. However, the selected views depend on the clinical indication and imaging protocol.

Medical coders should confirm that documentation supports three distinct views. For the right knee, the claim may report 73562-RT when applicable. The phrase cpt code for x ray of right knee three views therefore corresponds to CPT 73562.

CPT Code 73564 for Right Knee X-Ray – Four or More Views

CPT code 73564 applies to knee examinations containing four or more radiographic views. These examinations provide additional anatomical perspectives for evaluating complex joint conditions. For example, the study may include AP, lateral, and two oblique projections. Other clinically appropriate projections may also contribute to the completed examination.

Importantly, CPT 73564 includes four or more views under one procedure code. Therefore, five-view examinations generally use the same code rather than an additional knee radiography code. The correct cpt code for x ray of right knee 4 views is 73564.

Right Knee X-Ray Views and Their Impact on CPT Code Selection

Radiographic projections help physicians evaluate different anatomical structures within the knee. Each projection provides a particular perspective of bones, joints, and surrounding structures. Furthermore, the number of distinct diagnostic views determines the appropriate knee radiography CPT code.

Standard Knee Radiographic Projections

Common knee radiography projections include:

• Anteroposterior view: Provides a frontal assessment of the knee.
• Lateral view: Displays joint structures from the side.
• Oblique view: Offers an angled perspective of selected anatomical structures.
• Sunrise view: Evaluates the patella and patellofemoral joint.
• Standing AP view: Assesses joint alignment under weight-bearing conditions.
• Tunnel view: Examines the intercondylar region using specialized positioning.

The following table summarizes these projections and their coding considerations.

Differences Between Limited and Complete Knee X-Ray Examinations

Limited knee examinations generally contain one or two diagnostic views. In contrast, three-view examinations provide an additional projection. Complete knee radiography contains four or more views under CPT 73564.

Nevertheless, coders should not classify an examination solely from its requested name. Instead, they should verify the performed projections and supporting radiology report. An incorrectly documented view count can result in inaccurate procedural coding and reimbursement.

CPT Coding for Right Knee X-Ray With Two, Three, and Four Views

Selecting the correct x ray right knee cpt code requires matching completed radiographic views with CPT descriptions. The following table provides common reporting examples.

These examples assume the payer accepts the RT modifier for the examination.

Coding Additional Views During the Same Examination

Additional imaging views may change the applicable CPT code. For example, a planned two-view examination may become a three-view study. In that situation, the final report must support the three completed diagnostic views.

However, repeat exposures used to correct image quality do not automatically represent additional diagnostic views. Similarly, providers should avoid reporting multiple overlapping knee radiography codes for one complete examination. The final code should represent the actual documented service.

Right Knee and Left Knee X-Ray CPT Coding Differences

Right and left knee examinations generally use the same CPT codes. However, laterality modifiers help identify the anatomical side examined. The x ray right knee cpt code may therefore include the RT modifier when required.

RT and LT Modifiers for Unilateral Knee X-Rays

The RT modifier indicates a right-sided procedure. Conversely, LT identifies a left-sided procedure. For example, a two-view right knee examination may use 73560-RT. Meanwhile, the corresponding left knee examination may use 73560-LT.

These modifiers help clarify anatomical laterality and reduce potential billing confusion. Nevertheless, modifier requirements vary across payers and claim-processing systems. Therefore, coders should verify payer instructions before submitting claims.

Bilateral Knee X-Ray Coding and CPT Code 73565

CPT 73565 specifically describes a bilateral standing anteroposterior knee examination. It differs from comprehensive imaging performed separately on both knees. For example, bilateral multi-view examinations may require appropriate unilateral procedure reporting. The exact configuration depends on payer requirements and applicable coding edits.

Additionally, modifier 50 should not automatically replace RT and LT modifiers. Coders must evaluate the specific CPT descriptor, payer policy, and completed imaging documentation. This distinction helps prevent incorrect bilateral reporting and duplicate billing.

Medical Necessity and ICD-10-CM Diagnosis Codes for Right Knee Radiography

Medical necessity plays an important role in diagnostic imaging reimbursement. Healthcare providers must document clinical indications supporting the requested knee examination. Moreover, the selected diagnosis should accurately represent the patient’s documented condition. The x ray right knee cpt code identifies the procedure, while ICD-10-CM codes describe its medical justification.

Common Clinical Indications for Right Knee X-Rays

Physicians may request right knee radiography for several clinical reasons.

Common indications include:

• Persistent right knee pain or tenderness.
• Suspected fractures following traumatic injuries.
• Osteoarthritis and degenerative joint changes.
• Joint swelling or suspected effusion.
• Limited range of motion or joint stiffness.
• Suspected alignment abnormalities.
• Postoperative evaluation when clinically indicated.

However, an indication alone does not guarantee insurance coverage. Providers must establish medical necessity through appropriate clinical documentation.

ICD-10-CM Codes Commonly Associated With Right Knee X-Rays

Accurate diagnosis coding supports appropriate claim processing and medical necessity reviews. The following ICD-10-CM codes represent common right knee conditions.

These diagnoses are examples, not automatic coverage approvals.

Additionally, coders should review injury-specific codes when documentation confirms traumatic conditions. The CDC ICD-10-CM Browser provides official diagnosis classifications and coding instructions.

For services beginning October 1, 2026, providers should use the applicable FY2027 ICD-10-CM release.

Billing Modifiers for Right Knee X-Ray CPT Codes

Billing modifiers provide additional information about diagnostic imaging services. They may identify anatomical laterality or distinguish professional and technical components. Therefore, the x ray right knee cpt code may require modifiers according to billing circumstances.

Laterality, Professional, and Technical Component Modifiers

The professional component generally includes physician interpretation and the diagnostic report. Conversely, the technical component covers equipment, supplies, technologist services, and related imaging resources.

Providers reporting both components may qualify for global billing when applicable requirements are satisfied. CMS explains these distinctions through its professional and technical component indicators.

Modifier Usage in Different Billing Settings

Modifier requirements depend on the provider’s billing arrangement and service location. For example, a radiologist may report the professional component using modifier 26. Meanwhile, an imaging facility may report the technical component when independently eligible. 

Hospital outpatient departments follow applicable institutional and professional billing requirements. Additional guidance appears in this radiology billing guide covering CPT codes and modifiers.

Medicare and Insurance Billing Guidelines for Right Knee X-Rays

Medicare and commercial insurers establish requirements for diagnostic imaging claims. Consequently, providers must verify coverage rules before submitting knee radiography services. The x ray right knee cpt code must accurately reflect the completed procedure and supporting clinical documentation.

Medicare Part B Coverage and Medical Necessity Requirements

Medicare Part B may cover medically necessary diagnostic knee radiography when applicable requirements are satisfied. Providers should maintain appropriate orders, clinical indications, and completed radiology reports.

Furthermore, Medicare reimbursement depends on several factors, including:

• Reported CPT code and applicable modifiers.
• Provider participation and billing arrangement.
• Geographic payment adjustments.
• Professional or technical component reporting.
• Applicable Medicare coverage requirements.
• Current payment policies and coding edits.

Providers can reference the CMS Medicare Physician Fee Schedule for reimbursement information.

Commercial Insurance and Medicaid Billing Considerations

Commercial insurance and Medicaid policies may differ from Medicare requirements. Some plans establish additional documentation, authorization, or utilization management rules.

Therefore, billing departments should verify applicable requirements before claim submission. Important considerations include coverage eligibility, diagnosis reporting, modifier usage, and provider enrollment.

Additionally, authorization requirements can vary by payer, plan, and imaging setting. Accurate eligibility verification and claim preparation can reduce preventable administrative denials.

NCCI Edits and Radiology Code Bundling

The National Correct Coding Initiative helps prevent inappropriate reporting of overlapping services. 

Consequently, medical coders should review applicable procedure-to-procedure edits before submitting multiple radiology codes. For example, separate reporting of overlapping knee examinations may require additional review.

Moreover, modifiers cannot automatically override coding restrictions without supporting clinical circumstances. CMS provides current guidance through its Medicare NCCI Policy Manual.

Documentation Requirements for Accurate Right Knee X-Ray Coding

Complete documentation supports accurate procedure selection and claim processing. The x ray right knee cpt code should match the examination documented in the medical record. Therefore, physicians and coding professionals must maintain consistent information across imaging orders and reports.

Essential Details in the Radiology Report

A complete radiology record should contain relevant clinical and procedural information.

Important documentation elements include:

• Patient identification and examination date.
• Examined anatomical region and laterality.
• Number of diagnostic views performed.
• Clinical indication for the examination.
• Relevant radiographic findings.
• Final interpretation and impression.
• Reporting physician’s authentication.
• Additional projections when clinically appropriate.

Clear documentation also supports accurate medical coding practices.

Matching Physician Orders With Completed Imaging Studies

Medical coders should compare the imaging order with the completed examination. For example, a physician may request three views, but the radiology report documents only two.

In this situation, coders should investigate the discrepancy rather than automatically assign CPT 73562. Furthermore, missing laterality information may require clarification before claim submission. These checks improve coding consistency and reduce documentation-related billing errors.

Common Right Knee X-Ray Coding Errors and Claim Denials

Incorrect view counts and unsupported modifiers can create avoidable claim problems. Therefore, understanding common coding mistakes helps billing professionals improve procedural accuracy. The x ray right knee cpt code should always reflect the documented examination rather than assumptions.

Preventing Duplicate Claims and Incorrect View Billing

Billing professionals should confirm that each reported procedure represents a distinct, supported service. For example, a four-view examination generally should not generate separate two-view and four-view claims.

Additionally, repeat exposures do not automatically justify additional procedure charges. When claims contain overlapping services, coders should evaluate documentation and applicable NCCI edits. A consistent coding review process helps prevent unnecessary denials and payment corrections.

Practical Right Knee X-Ray Coding Examples

Practical billing scenarios demonstrate how radiographic documentation affects CPT code selection. The x ray right knee cpt code changes according to the number of diagnostic views performed.

Right Knee X-Ray With Two Views

A patient presents with persistent right knee pain. The physician orders AP and lateral radiographic projections. The technologist completes both views, and the radiologist documents the findings.

• Correct CPT code: 73560
• Reporting example: 73560-RT

The associated diagnosis may be M25.561 when documented and clinically appropriate.

Right Knee X-Ray With Three Views

A physician requests three projections to evaluate right knee symptoms.

• The examination includes AP, lateral, and sunrise views.
• The radiology report confirms three completed diagnostic projections.
• Correct CPT code: 73562
• Reporting example: 73562-RT
• The three-view documentation supports CPT 73562 rather than CPT 73560.

Right Knee X-Ray With Four Views

A patient undergoes comprehensive right knee radiography following a clinical assessment.

• The technologist obtains AP, lateral, and two oblique projections.
• The final report documents four completed views.
• Correct CPT code: 73564
• Reporting example: 73564-RT

Importantly, additional views within the same complete examination generally remain included under CPT 73564.

Right Knee X-Ray Combined With Lower Leg Imaging

A physician may request separate examinations of the knee and lower leg. CPT 73590 describes radiography of the tibia and fibula.

However, separate reporting requires documentation supporting distinct, medically necessary examinations. Coders must also review overlapping anatomical coverage and applicable payer rules.

The x ray right knee cpt code alone does not determine whether additional lower-leg imaging qualifies for separate reimbursement.

Conclusion

Accurate right knee radiography coding depends on documented view counts, laterality, and medical necessity. The x ray right knee cpt code generally falls under CPT 73560, 73562, or 73564. CPT 73560 covers one or two views, while CPT 73562 represents three views. Meanwhile, CPT 73564 covers four or more views.

Additionally, correct modifiers and ICD-10-CM diagnoses support appropriate claim submission. Providers should verify current payer policies, Medicare requirements, and NCCI edits before billing.