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Streamline Revenue With Coding Automation
Effective ICD-10 coding tools help successfully process knee replacement physical therapy billing.
A growth industry, the global joint replacement market size was valued at $17.1 billion in 20202, with the largest revenue share of 46% in knee joint replacement. Due to an aging population and the prevalence of osteoporosis and rheumatoid arthritis, the global joint replacement market size is expected to grow by a of 3.4% from 2021 to 2028.
Notably, chronic pain after TKR is experienced by approximately 20% of patients3. This may negatively impact the patients quality of life, function and mobility.
Physical therapy following total knee replacement surgery is an identified recommended treatment protocol for improving postsurgical outcomes.4 Using a highly customizable and tailored outpatient physical therapy EMR and billing software can streamline billing processes and improve reimbursement.
Bilateral Unicondylar Knee Arthroplasty Icd
Bilateral unicondylar knee arthroplasty is a surgical procedure to replace the worn out or damaged cartilage and bone in both knees. It is also known as a partial knee replacement. The surgery is performed through small incisions on the sides of both knees. A metal and plastic joint replacement is inserted in each knee.
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What Is The Icd 10 Code For Knee Meniscus Tear
- NON-BILLABLE CODE – S83.200 for Bucket-handle tear of unspecified meniscus, current injury, right knee
- BILLABLE CODE – Use S83.200A for initial encounter
- BILLABLE CODE – Use S83.200D for subsequent encounter
- BILLABLE CODE – Use S83.200S for sequela
- NON-BILLABLE CODE – S83.201 for Bucket-handle tear of unspecified meniscus, current injury, left knee
Presence Of Unspecified Artificial Knee Joint

- 20162017201820192020202120222023Billable/Specific Code
- Z96.659 is a billable/specific ICD-10-CM code that can be used to indicate a diagnosis for reimbursement purposes.
- The 2023 edition of ICD-10-CM Z96.659 became effective on October 1, 2022.
- This is the American ICD-10-CM version of Z96.659 – other international versions of ICD-10 Z96.659 may differ.
- Applicable To annotations, or
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CPT is provided “as is” without warranty of any kind, either expressed or implied, including but not limited to, the implied warranties of merchantability and fitness for a particular purpose. AMA warrants that due to the nature of CPT, it does not manipulate or process dates, therefore there is no Year 2000 issue with CPT. AMA disclaims responsibility for any errors in CPT that may arise as a result of CPT being used in conjunction with any software and/or hardware system that is not Year 2000 compliant. No fee schedules, basic unit, relative values or related listings are included in CPT. The AMA does not directly or indirectly practice medicine or dispense medical services. The responsibility for the content of this file/product is with CMS and no endorsement by the AMA is intended or implied. The AMA disclaims responsibility for any consequences or liability attributable to or related to any use, non-use, or interpretation of information contained or not contained in this file/product. This Agreement will terminate upon notice if you violate its terms. The AMA is a third party beneficiary to this Agreement.
Tools For Optimized Coding
Automated ICD-10 coding and billing success improves office morale and increases staff retention.
Net Health Therapy for Clinics EHR is the solution that makes ICD-10 coding and other billing/compliance tasks simpler through automation and by providing the billing team access to a fully customizable, configurable coding and compliance engine.
Front-end, back-end, billers, and coders are thrilled with the job scheduling, accounting, and automated optimal coding. It is all the outpatient therapy EMR and billing software you need in one package to maximize ICD-10 coding, improve reimbursement, increase patient engagement and provide outstanding staff with excellent tools.
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What Is An Orif
Open reduction internal fixation is a surgery to fix severely broken bones. Open reduction means a surgeon makes an incision to re-align the bone. Internal fixation means the bones are held together with hardware like metal pins, plates, rods, or screws. After the bone heals, this hardware isn’t removed.
What Is Total Shoulder Arthroplasty
Total shoulder replacement, also known as total shoulder arthroplasty, is the removal of portions of the shoulder joint, which are replaced with artificial implants to reduce pain and restore range of rotation and mobility. It is very successful for treating the severe pain and stiffness caused by end-stage arthritis.
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What Is The Diagnosis Code For Total Knee Replacement
Total knee replacement is classified to code 81.54 and involves replacing the articular surfaces of the femoral condyles, tibial plateau, and patella. What is ICD 10 code for knee replacement? ICD-10: Z96. 651, Status , organ replacement, by artificial or mechanical device or prosthesis of, joint, knee-see presence of knee joint implant.
Clean Up Diagnosis Coding For Staged Revisions
Assigning diagnosis codes for joint revision surgery is challenging in both ICD-9-CM and ICD-10-CM. Orthopaedic practices that carefully examine the instructions in both editions may find that they have been reporting staged revisions incorrectly for years. The following side-by-side comparison of ICD-9 and ICD-10 coding will help clean up diagnosis coding for staged revision surgeries.
Lets start with the diagnosis coding for the initial surgerya right total knee replacement for primary osteoarthritis. In ICD-9-CM, the diagnosis code is 715.16 . In ICD-10-CM, the code is M17.11 . Although both ICD-9 and ICD-10 require that the etiology of the osteoarthritis be documented, ICD-10 also requires that laterality be specified.
Staged revision, part 1One year later, the same patient returns, reporting pain, swelling, warmth, and a large effusion of 3 months duration. Radiographs show radiolucency beneath the femoral and tibial components, and a joint aspiration culture reveals the presence of Staphylococcus epidermidis. A staged revision of the implant is scheduled. The plan includes removal of the prosthesis and insertion of an antibiotic cement spacer, followed by 6 weeks of intravenous antibiotics and monitoring of serum C reactive protein and erythrocyte sedimentation rate before a new prosthesis is implanted.
The diagnosis codes for the first of this two-stage procedure are as follows:
ICD-9-CM
ICD-10-CM
ICD-9-CM
ICD-10-CM
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The American Hospital Association has not reviewed, and is not responsible for, the completeness or accuracy of any information contained in this material, nor was the AHA or any of its affiliates, involved in the preparation of this material, or the analysis of information provided in the material. The views and/or positions presented in the material do not necessarily represent the views of the AHA. CMS and its products and services are not endorsed by the AHA or any of its affiliates.
Ligament Retaining Or Sacrificing

The posterior cruciate ligament is important to the stability of the knee by preventing posterior subluxation of the tibia, reducing shear stress, increasing flexion and lever arm of the extensor mechanism by inducing femoral rollback upon flexion, and thus minimizing polyethylene abrasion through reducing stress applied to the articular surface. The PS implant uses a post that is built into the implant to accommodate for the loss of PCL. Proponents of retaining the PCL advise that it is difficult to balance a CR knee and unnatural physiologic loads may increase wear of the polyethylene. Multiple studies have demonstrated minimal to no difference between the two designs.
Medial congruent polyethylene and ligament retaining
MC knee replacements attempt to mimic a more natural knee motion by decreasing motion on the medial aspect of the knee and allowing for increased motion on the lateral aspect of the joint. This mimics the external rotation and abduction of the tibia that is seen during normal ambulation. While several studies have shown improved gait profiles, long-term studies are needed to demonstrate improved results. Conversely, the BCR knee retains the Anterior and posterior cruciate ligaments to try to mimic the normal tension of the knee’s ligaments. Concerns over increased revision frequency have led to some designs being pulled from the market.
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What Is Revision Procedure
During a revision procedure, a malfunctioning or displaced device is corrected. A portion of the device may be removed and replaced in a revision procedure, but a revision procedure will never involve the entire device. If the entire device is redone, the original root operation being performed should be coded.
If The Patients Primary Diagnosis Code Includes A Seventh Character Designating The Encounter Type Dont Use Aftercare Z Codes
ICD-10 introduced the seventh character to streamline the way providers denote different encounter typesnamely, those involving active treatment versus those involving subsequent care. However, not all ICD-10 diagnosis codes include the option to add a seventh character. For example, most of the codes contained in chapter 13 of the tabular list do not allow for seventh characters. And that makes sense considering that most of those codes represent conditionsincluding bone, joint, and muscle conditions that are recurrent or resulting from a healed injuryfor which therapy treatment does progress in the same way it does for acute injuries.
Codes for acute injuries and fractures, however, do allow for seventh characters. And when you use the seventh character D, you are denoting that the patient is in the healing/recovery phase of his, her, or their treatment. Essentially, you are indicating that the patient is receiving aftercare for the injury. Thus, you should not use aftercare codes in conjunction with injury codes, because doing so would be redundant.
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What Is The Objective Of A Replacement Procedure
In a replacement procedure, the objective is to replace the body part or a portion of the body part. This seems pretty straightforward. A caveat to remember is that if the code for replacement is assigned, the replacement code also captures the removal of the body part being replaced, and as such the removal or excision …
Presence Of Other Functional Implants
- 20162017201820192020202120222023Non-Billable/Non-Specific Code
- Chronic pain due to left total knee replacement
- Chronic pain following left total knee arthroplasty
- History of arthroplasty of left knee
- History of implantation of artificial left knee joint
- History of left knee arthroplasty
- History of left knee replacement
- History of left total knee arthroplasty
- History of left total knee replacement
- History of left unicondylar knee arthroplasty
- History of left unicondylar knee replacement
- History of revision of bilateral total knee arthroplasty
- History of revision of left total knee arthroplasty
- Hx of revision of bilateral total knee arthroplasty
- Left ankle arthroplasty failure
- Mechanical failure of left ankle joint prosthesis
- 564 Other musculoskeletal system and connective tissue diagnoses with mcc
- 565 Other musculoskeletal system and connective tissue diagnoses with cc
- 566 Other musculoskeletal system and connective tissue diagnoses without cc/mcc
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Treatment For Left Knee Pain
Treatments will vary, depending upon what exactly is causing your knee pain. Your doctor may prescribe medications to help relieve pain and to treat underlying conditions, such as rheumatoid arthritis or gout. Strengthening the muscles around your knee will make it more stable. Your doctor may recommend physical therapy or different types of strengthening exercises based on the specific condition that is causing your pain. In some cases, your doctor may suggest injecting medications or other substances directly into your joint. Examples include corticosteroids, hyaluronic acid, and PRP. If you have an injury that may require surgery, its usually not necessary to have the operation immediately. If you choose to have surgery, your options may include arthroscopic surgery, partial knee replacement surgery, or total knee replacement.
The table below includes the most commonly used ICD-10 codes for left knee pain:
ICD-10 Chapter |
---|
What Is The Cpt Code For Total Knee Replacement
When Revision Total Knee Replacement Is Recommended
- Implant Loosening and Wear. In order for a total knee replacement to function properly, an implant must remain firmly attached to the bone.
- Infection. Infection is a potential complication in any surgical procedure, including total knee replacement. …
- Instability. …
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What Is The Pathophysiology Of Arthroplasty Of The Knee
When cartilage becomes rough and wears away, the bones rub against each other, causing pain. After removing the damaged knee cartilage and bone, the surgeon attaches the artificial parts to your bones. The artificial parts are made of metal and plastic. They will give your knee new, smooth surfaces.
Capturing Patient Journeys: Icd

Total knee replacement surgery is one of the most common major orthopedic procedures performed today. And, as part of the patient care team, skilled and talented coders and billers use ICD-10 codes to capture these TKR patients journeys.
More than 600,000 total knee replacement surgeries are performed each year in the U.S., a number that is expected to increase to 1,272,000 by 2025.1 As these numbers grow, physical therapy continues to be an integral part of patient journeys.
From the time patients identify pain and mobility issues to seeking non-surgical treatment, diagnosis insight, as well as pre- and post-op knee replacement treatment, ICD-10 codes track their care. They allow both small and large physical therapy clinics to follow patients from knee pain, through surgery, and into rehab and the road to optimal function and mobility.
In addition, billers and coders endeavor to optimize claim reimbursements with ICD-10 and strive to utilize tools that encourage positive patient engagement in our physical therapy clinics.
At the same time, efficient and successful ICD-10 tools create opportunities for excellent staff retention.
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Use Z Codes To Code For Surgical Aftercare
When patients need continual care during a post-treatment healing or recovery phaseor when they require care for chronic symptoms that resulted from their original ailmentaftercare visit codes perfectly fit the bill. Z codes also apply to post-op care when the condition that precipitated the surgery no longer existsbut the patient still requires therapeutic care to return to a healthy level of function. In situations like these, ICD-10 provides a few coding options, including:
- Z47.89, Encounter for other orthopedic aftercare, and
- Z47.1, Aftercare following joint replacement surgery.
Remember, there are a number of orthopedic aftercare codes for specific surgeriesall of which you can find in the ICD-10 tabular list under Z47, Orthopedic aftercare.
Factors Influencing Health Status And Contact With Health Servicesnote
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What Is Replacement In Medical Terminology
Replacement: putting in or on biological or synthetic material that physically takes the place and/or function of all or a portion of a body part. Removal: taking out or off a device from a body part. Revision: Correcting to the extent possible a portion of a malfunctioning device or the position of a displaced device.
Right Total Knee Arthroplasty Cpt Code
A57685 is a partial knee replacement that has been covered by this article.
In order to complete knee replacement surgery, a total knee prosthesis is removed and replaced. If allo graft is used in total knee arthroplasty, it will be embedded in the femoral and tribal components. An infected joint procedure code can be treated by inserting , removing , and replacing an antibiotic-impregnated cement spacer. Total knee arthroplasty 27310-78, a type of arthrotomy, is not listed as a CPT code by the surgeon who performs arthrotomy, knee, exploration, drainage, or foreign body removal. A surgeon will replace the poly liner in this procedure, without requiring any revision or staging. Total knee replacement surgery is intended to relieve pain and improve the patients ability to perform daily activities as its primary goal. To be eligible for a CPT code for Total Joint Replacement 27487, a total knee replacement must be performed in the same surgical session.
Staged management entails the removal of the previous prosthesis during the first operation. CMS states that the vast majority of TKAs will be performed in the hospital setting. CPT codes for subsequent procedures include a modifier to indicate if they were planned in advance . When comparing payment amounts between various online services, CMS considers TKA to be a highly automated operation. TKAs for septic revision have lost more value over the last two decades than TKAs for aseptic revision.
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