2024 Trigger finger injection cpt

Trigger Finger. ICD-9 code: 727.03 “trigger finger” (acquired) ICD-10 code: M65.3 “trigger finger“ nodular tendinous disease. CPT code: 20550 “ Injection (s); single tendon sheath, or ligament, aponeurosis” Materials Needed. Pen – clicking type. Gloves – non-sterile. Alcohol swabs (or povidone-iodine) Band-aid.. King lube plover

CPT codes 20560, 20561 and 64625 have been added to a new CPT/HCPCS Codes section (Group 4). CPT code 64451 has been added to the CPT/HCPCS Codes …Trigger finger, right middle finger M65.332 Trigger finger, left middle finger M65.341 Trigger finger, right ring finger M65.342 Trigger finger, left ring finger M65.351 Trigger finger, right little fingerThe key landmark when performing ultrasound-guided injection for trigger finger is the A1 pulley at the level of the metacarpophalangeal joint (see Figs. 77.4 and 77.6 ). The most common site of pathology in trigger finger is in the flexor tendon and tendon sheath of the flexor digitorum superficialis and profundus muscles of the second to ...A forum thread where a user asks for help with coding a procedure of injecting kenalog and lidocaine into the flexor tendon sheaths of the trigger fingers. Two experts …if you inject two different muscle groups you can bill for two injections. Physician discussed patient's trigger fingers: "we discussed the role of repeat injection to the ring finger and a first time injection for the small finger. Under aseptic technique, 0.5 mL of Kengalog 40mg/mL was injected into the subcutaneous area above the A1 pulley ...Trigger Finger Release with UltraGuideTFR and Real-Time Ultrasound Guidance. Using direct ultrasound visualization, identify the relevant anatomical structures of the finger and hand. After visually confirming the anatomy, UltraGuideTFR is inserted through a small incision at the distal palmar crease just proximal to the A1 pulley.No more than 3 Trigger point injection sessions in a rolling 12 months will be considered reasonable and necessary, regardless of the code billed. CPT 20552 limits to 1 or 2 muscles and 20553 is 3 or more muscles. The number of injections into the muscle group are not billed separately. ... Pain in right finger(s) M79.645 Pain in left finger(s ...Mar 13, 2021 ... FLEXOR TENDONITIS / TRIGGER FINGER INJECTION - Simulation Series. RheumTutor•624 ... FLEXOR TENDONITIS / TRIGGER FINGER INJECTION - In-Vivo Series.without epinephrine was injected into the surgical site. After injection but prior to making incision, the MAC group utilized an esmarch to exsanguinate the ...No more than 3 Trigger point injection sessions in a rolling 12 months will be considered reasonable and necessary, regardless of the code billed. CPT 20552 limits to 1 or 2 muscles and 20553 is 3 or more muscles. The number of injections into the muscle group are not billed separately. The code includes all injections made into the muscle ...There are two CPT ® codes for Trigger point injections: 20552-Injection (s); single or multiple trigger point (s), 1 or 2 muscle (s) 20553-Injection (s); single or multiple trigger point (s), 3 or more muscles. Local anesthesia is included in these services. However, imaging guidance can be billed in addition to the injection if necessary ...Specific indications include carpal tunnel syndrome, arthritis of the first carpometacarpal joint, de Quervain's tenosynovitis, wrist ganglion cysts, and digital flexor …Collagenase clostridium histolyticum injection may lead to a decreased risk of trigger finger requiring surgical intervention in patients with risk factors. ... (CCH) injection (CPT 20527, J0775), percutaneous needle aponeurotomy (PNA) (CPT 26040), open fasciectomy (CPT 26123, 26125, 26121), and open fasciotomy (CPT 26045). ...Clubbed fingers can occur without other illnesses but are usually symptoms of a disease that causes chronically low blood oxygen levels. Clubbed fingers can occur without other ill...No more than 3 Trigger point injection sessions in a rolling 12 months will be considered reasonable and necessary, regardless of the code billed. CPT 20552 limits to 1 or 2 muscles and 20553 is 3 or more muscles. The number of injections into the muscle group are not billed separately. The code includes all injections made into the muscle.I need some guidance. We billed Medicare the following: 99212 (25), 20600 (F3) and J1030- patient DX: trigger finger,swelling of limb & pain in finger.Nov 1, 2013 ... RheumTutor•44K views · 2:40 · Go to channel · TRIGGER FINGER STEROID INJECTION/ DR PRADEEP BALA. Dr. Pradeep Bala•31K views · 1:09:04 &m...Finger Modifier Fact Sheet. Published on Feb 09 2016, Last Updated on May 07 2019 . ← back-to-previous-page. FB link Print Email. Jurisdictions: J8B,J5B You currently have jurisdiction ... Any questions pertaining to the license or use of the CPT should be addressed to the AMA. End Users do not act for or on behalf of the CMS.Sep 15, 2005 · M65.30 Trigger finger, unspecified finger M65.311 – M65.359 Trigger finger M65.4 Radial styloid tenosynovitis [de Quervain] M65.80 Other synovitis and tenosynovitis, unspecified site M65.811 – M65.9 Other synovitis and tenosynovitis M65.841 – M65.849 Other synovitis and tenosynovitis, hand Feb 15, 2003 · Am Fam Physician. 2003;67 (4):745-750. Joint injection of the wrist and hand region is a useful diagnostic and therapeutic tool for the family physician. In this article, the injection procedures ... Price: $3,025. CPT Code: 26055. Trigger finger, trigger thumb, or trigger digit, is a common disorder characterized by catching, snapping or locking of the involved finger flexor tendon, associated with dysfunction and pain. A disparity in size between the flexor tendon and the surrounding retinacular pulley system, most commonly at the level ...control injections performed today are known as trigger point injections, trigger point therapy, or pressure point therapy. In order to clarify and assist in accurate coding of these injections, codes 20552 and 20553 were revised for CPT 2003. Before we discuss the revisions for 2003, we will explain aTrigger finger is a commonly occurring hand condition that presents with symptoms of pain, clicking, locking, and catching of the finger. A common non-operative management option is corticosteroid injection. The purpose of this study was to evaluate the short-term patient response to corticosteroid injections for trigger finger. MethodsAccording to Becker’s Spine Review, under the American Medical Association’s Current Procedural Terminology, or CPT, 20610 is the code for a cortisone injection in the shoulder, si...Injection, tendon sheath, ligament, trigger points or ganglion cyst, Inj Trigger Finger, 20550 ; Arthroplasty, interphalangeal joint; with prosthetic implant, ...This Billing and Coding Article provides billing and coding guidance for Local Coverage Determination (LCD) L35010, Trigger Point Injections. Please refer to the LCD for reasonable and necessary requirements. Coding Guidance. Notice: It is not appropriate to bill Medicare for services that are not covered (as described by the entire …CPT 20550 is used to describe the injection of a single tendon sheath, ligament, or aponeurosis. This procedure involves the administration of corticosteroid, anesthetic, or anti-inflammatory drugs into the aponeurosis of the tendon sheath and/or ligament. It is commonly used to reduce the formation of aponeurosis and provide therapeutic relief ...Florida Subscriber. Answer: The diagnoses you offered indicate that the orthopedist is probably injecting the tendon sheath or ligament, which would point to 20550* ( Injection; tendon sheath, ligament, ganglion cyst ). To show Medicare that the physician injected multiple digits, append the finger modifiers (-FA through -F9) to 20550 on ...Article Guidance. This Billing and Coding Article provides billing and coding guidance for Local Coverage Determination (LCD) L33912, Injection of Trigger Points. Please refer to the LCD for reasonable and necessary requirements. Coding Guidelines.Remember that all procedures have a certain amount of evaluation and management built into them. If the treatment was "pre-scheduled" and there was no significant interval history or examination change, and the follow-up treatment remained unchanged, then it would not be appropriate to bill an E&M in addition to the trigger …Best answers. 0. Mar 25, 2008. #2. If the release was done through an incision try 26055; "The physician makes an incision in a tendon sheath to release tension in the tendon. (For example, this procedure would be performed to relieve trigger finger .) The physician incises the skin overlying the tendon and dissects to the tendon sheath The ...Background: Trigger finger is a disease of the tendons of the hand leading to triggering (locking) of affected fingers, dysfunction, and pain. Available treatments include local injection with ...A trigger finger is a very common and treatable problem. It can occur in both fingers and the thumbs, which have tendons that help them to bend. The flexor tendons that bend the fingers have a lining on the outside. This lining is called tenosynovium. The tendon and lining are covered by a series of thick, soft tissue called pulleys.History/Background and/or General Information. Trigger point injection is one of many modalities utilized in the management of chronic pain. Myofascial trigger points are self-sustaining hyperirritative foci that may occur in any skeletal muscle in response to strain produced by acute or chronic overload.Finger Modifier Fact Sheet. Published on Feb 09 2016, Last Updated on May 07 2019 . ← back-to-previous-page. FB link Print Email. Jurisdictions: J8B,J5B You currently have jurisdiction ... Any questions pertaining to the license or use of the CPT should be addressed to the AMA. End Users do not act for or on behalf of the CMS.The average reported trigger point injection cost. The costs of a trigger point injection will all depend on the provider you use, the number of injections per session and your geographical location. From what we researched, the costs, without insurance, can vary anywhere from $250 to $450 for just the injections alone.Article Text. The following billing and coding guidance is to be used with its associated Local Coverage Determination. Injection therapies for Morton's neuroma do not involve the structures described by CPT code 20550 and 20551 or direct injection into other peripheral nerves but rather the focal injection of tissue surrounding a specific focus of inflammation on the foot.Correct Coding: 99213-25, 20552 Diagnosis: M79.70. There continues to be a lot of confusion on proper coding for trigger-point injections. Two CPT4 codes can be used: 20552—Injection(s); single or multiple trigger point(s), one or two muscle(s); and; 20553—Injection(s); single or multiple trigger point(s), three or more muscle(s).Trigger finger is one of the most common causes of hand pain in adults. The reported prevalence is roughly 2 percent in the general population, and is most common among women in the fifth or sixth decade of life [ 1 ]. It can occur in one or more fingers in each hand and can be bilateral. The prevalence of trigger finger is also higher among ... 20605 is injection into a joint or bursa. 20552 is what you would want if it is a trigger point injection into 1 or 2 muscles. If 3 or more you would code 20553. Remember that it goes by number of mus... [ Read More ] © 1995-2024 by the American Academy of Orthopaedic Surgeons. "All Rights Reserved." This website and its contents may not be reproduced in whole or in part without ...Trigger Finger (trigger thumb when involving the thumb) is the inhibition of smooth tendon gliding due to mechanical impingement at the level of the A1 pulley that causes progressive pain, clicking, catching, …Injection, tendon sheath, ligament, trigger points or ganglion cyst, Inj Trigger Finger, 20550 ; Arthroplasty, interphalangeal joint; with prosthetic implant, ...Trigger finger of bilateral middle fingers; Trigger finger of left middle finger. ICD-10-CM M65.332 is grouped within Diagnostic Related Group(s) (MS-DRG v ...CPT code: Description: Price: 99203: New Patient Consultation – Low Complexity: $150: ... Trigger Finger Injection: $75: 20551: Tendon Origin/Insertion Injection: $85: 20526: Carpal Tunnel Injection: ... Trigger finger release local anesthetic: $1500: 25111: Ganglion cyst excision: $1750: 25000: DeQuervain tendonitis release:Oct 1, 2015 · Coverage Guidance. This policy addresses the injection of chemical substances, such as local anesthetics, steroids, sclerosing agents and/or neurolytic agents into ganglion cysts, tendon sheaths, tendon origins/insertions, ligaments or near nerves of the feet (e.g., Morton's neuroma) to affect therapy for a pathological condition. This Billing and Coding Article provides billing and coding guidance for Local Coverage Determination (LCD) L35010, Trigger Point Injections. Please refer to the LCD for reasonable and necessary requirements. Coding Guidance. Notice: It is not appropriate to bill Medicare for services that are not covered (as described by the entire …A study released today finds that big earthquakes around the world have triggered separate quakes in the US where wastewater resulting from natural gas production is injected under...We would like to show you a description here but the site won’t allow us.Which CPT code is used 20550 or 20551 for a trigger finger /A1 pulley injection?To date, my two hand surgeons have never required ultrasound for a trigger injection. It sounds like your physician is using ultrasound routinely. The codes may not hit an edit, but before I would bill it out I would want the physician to document the medical necessity for the ultrasound to guide the needle for the patient.Trigger finger, right middle finger M65.332 Trigger finger, left middle finger M65.341 Trigger finger, right ring finger ... Billing and Coding: Trigger Point Injections (TPI). 10/01/2023 R13 Based on the annual ICD-10 code update, ICD-10 code D48.1 has been deleted from Group 2. 03/19/2023 R12 The article has been revised to remove all ...No more than 3 Trigger point injection sessions in a rolling 12 months will be considered reasonable and necessary, regardless of the code billed. CPT 20552 limits to 1 or 2 muscles and 20553 is 3 or more muscles. The number of injections into the muscle group are not billed separately.Trigger finger (727.03) Ganglion of tendon sheath (727.42) Contracture of joint, hand/fingers (718.44) Loc prim osteoarthritis, hand (715.14) Pain in joint, hand (719.44) CPT Codes Injection, tendon sheath, ligament, trigger points or ganglion cyst (20550) Aspiration or injection ganglion cyst (20612)In conclusion, steroid injection is a successful first-line intervention for the treatment of trigger digit, especially in the thumb. The total efficacy of the steroid injections was 66% in the study. There was statistically a greater success of the injections in treating the thumb compared with other fingers.Learn how to bill and code trigger point injections for myofascial pain relief by physical therapists and pain management professionals. Find out the CPT codes, modifiers, units, and ICD-10-CM codes for this procedure.Jul 2, 2020 · Medicare does not cover Prolotherapy. Its billing under the trigger point injection code is a misrepresentation of the actual service rendered. When a given site is injected, it will be considered one injection service, regardless of the number of injections administered. Utilization Guidelines There are two CPT codes for Trigger point injections, which are based on the number of muscles treated –. 20552-Injection (s); single or multiple trigger point (s), 1 or 2 muscle (s) 20553-Injection (s); single or multiple trigger point (s), 3 or more muscles. Local anesthesia is included in these services.© 1995-2024 by the American Academy of Orthopaedic Surgeons. "All Rights Reserved." This website and its contents may not be reproduced in whole or in part without ...Trigger point injections are reported with the following CPT codes: • 20552: Injection(s); single or multiple trigger point(s), 1 or 2 muscle(s) • 20553: Injection(s); single or multiple trigger point(s), 3 or more muscles . Imaging guidance for the injection would be reported with one of the following codes, depending on the modality used:Here are ⁤some tips to help you navigate trigger finger release CPT coding with confidence: 1. Familiarize yourself with the ⁣relevant ‍CPT codes: CPT codes 26055, 64721, and 26341 are commonly⁢ used for trigger finger release‍ procedures. Understanding the specifics of each code and when to apply them is crucial for accurate coding.Do them as follows: Using the opposite hand, grasp the affected finger just below the crease nearest to the end of your finger. Bend just the tip of your finger five times. Move your hand to just below the middle knuckle of the finger, holding your large knuckle straight. Bend the middle knuckle five times.Trigger finger, right middle finger M65.332 Trigger finger, left middle finger M65.341 Trigger finger, right ring finger ... Billing and Coding: Trigger Point Injections (TPI). 10/01/2023 R13 Based on the annual ICD-10 code update, ICD-10 code D48.1 has been deleted from Group 2. 03/19/2023 R12 The article has been revised to remove all ...Basics the trigger finger/point injection cpt code 20550-20551. The physician injects a therapeutic agent toward a single tendon sheath, or ligament, aponeurosis like as this plantar fillet are 20550 real into a single tendon origin/insertion site to 20551.Article Text. The following billing and coding guidance is to be used with its associated Local Coverage Determination. Injection therapies for Morton's neuroma do not involve the structures described by CPT code 20550 and 20551 or direct injection into other peripheral nerves but rather the focal injection of tissue surrounding a specific focus of inflammation on the foot.Do them as follows: Using the opposite hand, grasp the affected finger just below the crease nearest to the end of your finger. Bend just the tip of your finger five times. Move your hand to just below the middle knuckle of the finger, holding your large knuckle straight. Bend the middle knuckle five times.Injection, tendon sheath, ligament, trigger points or ganglion cyst, Inj Trigger Finger, 20550 ; Arthroplasty, interphalangeal joint; with prosthetic implant, ...Heparin (Injection) received an overall rating of 6 out of 10 stars from 25 reviews. See what others have said about Heparin (Injection), including the effectiveness, ease of use a...No more than 3 Trigger point injection sessions in a rolling 12 months will be considered reasonable and necessary, regardless of the code billed. CPT 20552 limits to 1 or 2 muscles and 20553 is 3 or more muscles. The number of injections into the muscle group are not billed separately. The code includes all injections made into the muscle. Trigger finger release CPT code 26055 can be reported for stenosing tenosynovitis by incising the tendon sheath at the finger’s base. Trigger finger issue comes to the limelight when a finger stays in a stiff bent position for some time due to swollen tendon or inflammation, narrowing of A1 pulley, or formation of nodules among... Mar 31, 2024 · CPT ® 20552 limits to 1 or 2 muscles and 20553 is 3 or more muscles. The number of injections into the muscle group are not billed separately. The code includes all injections made into the muscle. Medication. The drug used for the injection must be on the same claim as the trigger point administration. Trigger Finger (trigger thumb when involving the thumb) is the inhibition of smooth tendon gliding due to mechanical impingement at the level of the A1 pulley that causes progressive pain, clicking, catching, …Feb 15, 2003 · Am Fam Physician. 2003;67 (4):745-750. Joint injection of the wrist and hand region is a useful diagnostic and therapeutic tool for the family physician. In this article, the injection procedures ... No more than 3 Trigger point injection sessions in a rolling 12 months will be considered reasonable and necessary, regardless of the code billed. CPT 20552 limits to 1 or 2 muscles and 20553 is 3 or more muscles. The number of injections into the muscle group are not billed separately. The code includes all injections made into the muscle ...The finger will be numb for an hour. Sometimes the triggering increases due to the volume of fluid but this rapidly resolves. For further information, refer to Hand Injections – General. Tips for the administration of injections for the treatment of Trigger Fingers. Palpate the flexor sheath and mark the line with your thumb nail.Swollen middle finger joints can be attributed to a condition known as trigger finger, which is a type of tendonitis that has developed in the tendons that allow the fingers to ben...No more than 3 Trigger point injection sessions in a rolling 12 months will be considered reasonable and necessary, regardless of the code billed. CPT 20552 limits to 1 or 2 muscles and 20553 is 3 or more muscles. The number of injections into the muscle group are not billed separately.No more than 3 Trigger point injection sessions in a rolling 12 months will be considered reasonable and necessary, regardless of the code billed. CPT 20552 limits to 1 or 2 muscles and 20553 is 3 or more muscles. The number of injections into the muscle group are not billed separately. The code includes all injections made into the muscle ...Trigger Finger Release. Comments. TECHNIQUE STEPS 0 % 0. 0 Preoperative Patient Care A. Intermediate Evaluation and Management. 1. Obtain focused history and performs focused exam . check range of motion check radial and ulnar pulses ...Jan 17, 2024 · Here are ⁤some tips to help you navigate trigger finger release CPT coding with confidence: 1. Familiarize yourself with the ⁣relevant ‍CPT codes: CPT codes 26055, 64721, and 26341 are commonly⁢ used for trigger finger release‍ procedures. Understanding the specifics of each code and when to apply them is crucial for accurate coding. CPT code: Description: Price: 99203: New Patient Consultation – Low Complexity: $150: ... Trigger Finger Injection: $75: 20551: Tendon Origin/Insertion Injection: $85: 20526: Carpal Tunnel Injection: ... Trigger finger release local anesthetic: $1500: 25111: Ganglion cyst excision: $1750: 25000: DeQuervain tendonitis release:After a short eval, the doctor decided to perform a trigger point injection on the thumb. The doctor is insisting on billing a 99214-25 along with the 20550 injection procedure. Is this correct coding, or should the office visit be considered as included in the procedure? Diagnosis: M65.312 Simple ROS, and exam only of the left thumb. Thanks in ...Best answers. 0. Mar 17, 2016. #1. My physician did bilateral trigger finger injections on the rt and lt 3rd digit and rt and lt 4th digits. He bill 20550-50 X1 unit. 20550 has an MUE of …Diazepam (Injection)(Injectable) received an overall rating of 8 out of 10 stars from 34 reviews. See what others have said about Diazepam (Injection)(Injectable), including the ef...Instructional video on how to perform an intra-articular injection for the treatment of trigger finger.Journal: JBJS JOPASubspecialty: Hand & WristDilaudid (Hydromorphone (Injection)) received an overall rating of 8 out of 10 stars from 69 reviews. See what others have said about Dilaudid (Hydromorphone (Injection)), includin...Trigger ﬁnger is thought to be caused by inflammation and subsequent narrowing of the A1 pulley of the affected digit, typically the third or fourth. The A1 pulley is most often affected, but there are some reported cases where the A2 and A3 pulleys were involved [1]. It can also occur in the thumb and is then called trigger thumb. [2]

Introduction. Trigger finger or stenosing tenosynovitis is a common hand condition with a prevalence of 2-3% in the general population [1-4].Typically, patients present with symptoms of pain, clicking, catching, and/or loss of active motion of the affected finger [].Initial non-surgical treatment options include observation, non-steroidal anti …. Terry crews net worth

Injection, tendon sheath, ligament, trigger points or ganglion cyst, Inj Trigger Finger, 20550 ; Arthroplasty, interphalangeal joint; with prosthetic implant, ...Tips for the administration of injections for the treatment of Trigger Fingers. Palpate the flexor sheath and mark the line with your thumb nail.Coverage Guidance. This policy addresses the injection of chemical substances, such as local anesthetics, steroids, sclerosing agents and/or neurolytic agents into ganglion cysts, tendon sheaths, tendon origins/insertions, ligaments or near nerves of the feet (e.g., Morton's neuroma) to affect therapy for a pathological condition.We would like to show you a description here but the site won’t allow us.Question: Can you please confirm the accurate CPT code for injection at the A1 pulley for trigger finger? This is an example of the documentation, "bilateral trigger finger injections provided for both long fingers at A1 pulley." Would 20550 or 20551 be accurate? Sign up for a membership to view the answer to this question.You'll need to use the correct modifier for each finger. 20551-F7 (right hand, middle finger) 20551-F3 (left hand, ring finger)Trigger finger causes pain, stiffness, and a sensation of locking or catching when you bend and straighten your finger. The condition is also known as ... Trigger Finger Release Technique. Prep and drape in standard sterile fashion. Local anesthetic injected into skin and flexor sheath. Longitudinal incision over A1 pully between the distal transverse palmar crease and the base of the finger flexion crease. Blunt dissection under loop magnification down to A1 pulley. There are two CPT ® codes for Trigger point injections: 20552-Injection (s); single or multiple trigger point (s), 1 or 2 muscle (s) 20553-Injection (s); single or multiple trigger point (s), 3 or more muscles. Local anesthesia is included in these services. However, imaging guidance can be billed in addition to the injection if necessary ...Article Guidance. This Billing and Coding Article provides billing and coding guidance for Local Coverage Determination (LCD) L33912, Injection of Trigger Points. Please refer to the LCD for reasonable and necessary requirements. Coding Guidelines.ICD-9 code: 727.03 “trigger finger” (acquired) ICD-10 code: M65.3 “trigger finger“ nodular tendinous disease. CPT code: 20550 “ Injection (s); single tendon sheath, …Apr 1, 2023 · No more than 3 Trigger point injection sessions in a rolling 12 months will be considered reasonable and necessary, regardless of the code billed. CPT 20552 limits to 1 or 2 muscles and 20553 is 3 or more muscles. The number of injections into the muscle group are not billed separately. The code includes all injections made into the muscle. The number of injections in the same finger averaged 1.25 injections/finger (range, one to four injections/finger) for our entire study group. Recurrence after the first, second, third, and fourth injections was 34.0, 47.9, 26.1, and 75.0 %, respectively, the cumulative recurrence was 20.3 %.Dilaudid (Hydromorphone (Injection)) received an overall rating of 8 out of 10 stars from 69 reviews. See what others have said about Dilaudid (Hydromorphone (Injection)), includin...Trigger finger release CPT code 26055 can be reported for stenosing tenosynovitis by incising the tendon sheath at the finger’s base. Trigger finger issue comes to the limelight when a finger stays in a stiff bent position for some time due to swollen tendon or inflammation, narrowing of A1 pulley, or formation of nodules among...Thumb injection may also be performed for osteoarthritis of the thumb base. In addition to corticosteroids, hyaluronic acid [ 10] and platelet-rich plasma (PRP) [ 12, 11] have been employed in this setting. Next: Injection Into Thumb. De Quervain tenosynovitis was first described by Swiss physician Fritz de Quervain, in 1895, in a series of ....

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