Modifier 50 should not be reported with CPT codes 20551 or 20612, but may be reported, when appropriate, with CPT codes 20550 and 20526. For an Ambulatory Surgical Center (ASC), the appropriate site modifier (RT and/or LT) should be appended to indicate if the service was performed unilaterally or bilaterally.Response: You "aspirated and injected" a ganglion. This is coded as CPT 20612 (aspiration and/or injection of ganglion cyst (s) any location). Submitting any obtained material aspirated from the ganglion would be incidental to the CPT 20612 coding. Be sure to listed and bill for the steroid injected.Sep 5, 2018 · The Current Procedural Terminology (CPT ®) code 20610 as maintained by American Medical Association, is a medical procedural code under the range - General Introduction or Removal Procedures on the Musculoskeletal System. The work RVU calculator provides quick analysis of work relative value units associated with CPT ® and HCPCS Level II codes. By entering the appropriate code and number of units associated with it, you will receive the total work RVUs and individual work RVU value for that code. The RVU calculation results are based on the values supplied by ...CPT - 11760 – Repair of Nail Bed. CPT – 25215 – Carpectomy; all bones of proximal row. CPT – 64721 – Neuroplasty (carpal tunnel release) Hand Surgery. Carpal Tunnel Release. 64721. “Neuroplasty and/or transposition; median nerve at carpal tunnel”. Endoscopic Carpal Tunnel Release.CPT® Knowledge Base is a compendium of real life coding questions asked by the coding community and answered by CPT® coding experts. Over 2900 questions and authoritative answers from the CPT® professionals at the AMA. Get specific answers to challenging coding questions, and search the knowledge base of others' real world questions.Aug 24, 2017 · 20552 Injection (s), single to multiple trigger point (s) one or two muscle (s) 20553 Injection (s), single to multiple trigger point (s) three or more muscle (s) 20612 Aspiration and/or injection of ganglion (s) cyst any location. New CPT codes for joint injections that became effective January 2015 do not require the use of 76942: 20604 ... March 2020. Using the most up to date coding and billing resources is something that all competent anesthesia and pain medicine coders and billers should know to do. We see reminders in every notice about updating CPT®, ICD-10-CM, Relative Value Guide® and CROSSWALK® resources. Depending on the circumstances, one missed update can …May 3, 2024 · 20612 - CPT® Code in category: Arthrocentesis, aspiration and/or injection... CPT Code information is available to subscribers and includes the CPT code number, short description, long description, guidelines and more. Medicare is establishing the following limited coverage for CPT/HCPCS codes 20526, 20550, 20551 and 20612: E/M with Procedure Coding. Query: “Are we allowed to bill an E/M service with a procedure? For example: ... For example, CPT code 20550 (“Injection(s); single tendon sheath, or ligament, aponeurosis (eg, plantar “fascia ...Aug 11, 2020 · Modifier 50 should not be reported with CPT codes 20551, 20552, 20553, or 20612, but may be reported with CPT codes 20550 and 20526 when appropriate. Modifier 59- Multiple Multiple surgical rules apply if there are injection(s) done on separate sites during the same encounter and should be reported in a separate line using Modifier 59. Codify by AAPC helps you quickly and accurately select the CPT® codes you need to keep your claims on track. With Codify by AAPC cross-reference tools, you can check common code pairings. You also get CPT to ICD-10-CM, CPT to HCPCS, and CPT to Modifier crosswalks. Our NCCI Edit tool will help you prevent denials from Medicare’s National ... CPT Knowledgebase - Nov 1, 2021 The June 2021 CPT Assistant indicated that CPT codes 62370 and CPT 77002 can be reported together. Does the CPT coding policy regarding "Use 77002 in conjunction with" not require the code to be within the following parenthetical list of designated primary procedures to be able to report it with 77002? Music has long been shown to boost both cognitive performance and productivity. These are the most popular songs to code to. Music has long been shown to boost both cognitive perfo...CPT Code 22612, Arthrodesis Procedures on the Spine (Vertebral Column), Posterior, Posterolateral or Lateral Transverse Process Technique Arthrodesis Procedures on the Spine (Vertebral Column) - Codify by AAPC20612. Aspirate/inj ganglion cyst yes. 20615. Treatment of bone cyst yes. 20650. Insert and remove bone pin yes. 20660. Apply rem fixation device yes. 20661.CPT ® Code Set. 20615 - CPT® Code in category: Arthrocentesis, aspiration and/or injection... CPT Code information is available to subscribers and includes the CPT code number, short description, long description, guidelines and more. CPT code information is copyright by the AMA. Access to this feature is available in the …CPT Code 22612, Arthrodesis Procedures on the Spine (Vertebral Column), Posterior, Posterolateral or Lateral Transverse Process Technique Arthrodesis Procedures on the Spine (Vertebral Column) - Codify by AAPCThe HCPCS/CPT code(s) may be subject to Correct Coding Initiative (CCI) edits. Other Injections/Aspirations . Code Description. 20612 Aspiration and/or injection of ganglion …20600 Arthrocentesis, aspiration and/or injection, small joint or bursa (eg, fingers, toes); without ultrasound guidance. 20604 Arthrocentesis, aspiration and/or … The work RVU calculator provides quick analysis of work relative value units associated with CPT ® and HCPCS Level II codes. By entering the appropriate code and number of units associated with it, you will receive the total work RVUs and individual work RVU value for that code. The RVU calculation results are based on the values supplied by ... 20612 - CPT® Code in category: Arthrocentesis, aspiration and/or injection... CPT Code information is available to subscribers and includes the CPT code number, short …CPT code 20600 should be used when a healthcare provider performs arthrocentesis, aspiration, and/or injection in a small joint or bursa without the use of ultrasound guidance. This code is specifically for small joints or bursae, such as those in the fingers or toes. ... CPT 20612: Aspiration and/or injection of ganglion cyst(s) any location ...Since there is no definite diagnosis of neuroma, and the injection has been given in webspace, so the appropriate code to bill for above diagnosis M79.671, (Pain in right foot), will be 20600 (Arthrocentesis, aspiration and/or injection, small joint or bursa (eg, fingers, toes); without ultrasound guidance).The HCPCS drug code and dose is not required when CPT 20612 is reported for aspiration and not for injection or when the ICD-10-CM codes reported are M77.11 or M77.12 and there is no injection. The medication being injected, designated by an appropriate HCPCS drug code must be submitted on the same claim, same day of service as the claim for ...Code 20612 is for the aspiration of the cyst and/or injection of an anti-inflammatory substance, which often relieves the symptoms without surgery. Q: The …CPT code 20605 describes the procedure of arthrocentesis, aspiration, and/or injection in an intermediate joint or bursa without ultrasound guidance. This article will cover the description, procedure, qualifying circumstances, appropriate usage, documentation requirements, billing guidelines, historical information and billing examples. 1. What is CPT Code 20605? CPT 20605 is used to describe ...Jul 10, 2010 · Procedure code and description. 20550 Injection (s); single tendon sheath, or ligament, aponeurosis (eg, plantar “fascia’’) 20551 Injection (s); single tendon origin/insertion. 20600 – Arthrocentesis, aspiration and/or injection, small joint or bursa (eg, fingers, toes); without ultrasound guidance – average fee payment – $50 – $60. Jun 21, 2022 · What CPT ® codes should we use, and do we charge for one or two guidance procedures? Is there an additional code for the puncture? A. For the Baker’s cyst, assign CPT code 20612 plus 76942. For the calf aspiration, I would assign CPT code 10160. You would not report guidance for the calf aspiration separately since 76942 was already billed once. During the exam, a cervical polyp is seen, and the decision is made to remove the polyp with ring forceps. What code(s) are reported? a. 99214, 57500 b. 99213-25, 57500 c. 57500 d. 99396-25, 57500, What is the CPT® code for an arthrocentesis wrist (intermediate joint)? a. 20610 b. 20605 c. 20600 d. 20612 and more.The official description of CPT code 20610 is: ‘Arthrocentesis, aspiration and/or injection, major joint or bursa (eg, shoulder, hip, knee, subacromial bursa) without ultrasound guidance.’. 3. Procedure. In this procedure, the healthcare provider inserts a needle through the patient’s skin and into a major joint or bursa. Using a syringe ...Codify by AAPC helps you quickly and accurately select the CPT® codes you need to keep your claims on track. With Codify by AAPC cross-reference tools, you can check common code pairings. You also get CPT to ICD-10-CM, CPT to HCPCS, and CPT to Modifier crosswalks. Our NCCI Edit tool will help you prevent denials from Medicare’s National ...The CPT® codes for reporting arthrocentesis are 20600–20615. The descriptors start by stating that the codes represent arthrocentesis — aspiration from or injection into a joint, or both aspiration and injection of the same joint. Proper code selection is based on two factors: Whether ultrasound guidance is used.Jul 25, 2018 · Inflamed joints are recognized by being red, warm, tender, swollen, and painful to bend. Arthrocentesis CPT Codes. The CPT codes for arthrocentesis aspiration or injection procedures are 20600-20611. Accurate reimbursement depends on reporting the services provided using all the appropriate code sets and modifiers. For detailed information about Humana’s claim payment inquiry process, review the claim payment inquiry process guide (300 KB). The following links are intended to facilitate documentation and coding diagnoses and services that are provided to patients with Humana coverage: *. Atrial fibrillation coding guidelines.Bursa / Ganglion / Synovectomy CPT Codes. Aspiration or injection ganglion cyst (20612) Arthrotomy, elbow; with synovial biopsy only (24100) Excision, olecranon bursa (24105) Excision, lesion of tendon sheath, forearm and/or wrist (25110) Excision of ganglion, wrist (dorsal or volar); primary (25111) CPT 20610 can be reported for a major joint or bursa injection or aspiration without ultrasound guidance. Modifier RT, LT, 50, 59 and JW can be needed to report the 20610 CPT code properly. The reimbursement rate for facility charges is $46.76 and for non-facility charges $65.60. 22612 - CPT® Code in category: Arthrodesis, posterior or posterolateral technique, single level... CPT Code information is available to subscribers and includes the CPT code number, short description, long description, guidelines and more. CPT code information is copyright by the AMA. Access to this feature is available in the following products:This is coded as CPT 20612 (aspiration and/or injection of ganglion cyst (s) any location). Submitting any obtained material aspirated from the ganglion would be incidental to the …If you purchased your mobile phone through Virgin, it came locked to that network. This means that you cannot use your phone with a different mobile service provider until you get ...CPT / HCPCS Codes Referenced; Allogeneic Hematopoietic Cell Transplantation for Primary Refractory or Relapsed Hodgkin's and Non-Hodgkin's Lymphoma with B-cell or T-cell Origin ... 20612, 26341, 28899, 64455, 64632: Intraosseous Basivertebral Nerve Ablation: L39642: A59466: 64628, 64629: In Vitro Chemosensitivity …The Current Procedural Terminology (CPT ®) code 76942 as maintained by American Medical Association, is a medical procedural code under the range - Ultrasonic Guidance Procedures. Subscribe to Codify by AAPC and get the code details in a flash.CPT code 20605 describes the procedure of arthrocentesis, aspiration, and/or injection in an intermediate joint or bursa without ultrasound guidance. This article will cover the description, procedure, qualifying circumstances, appropriate usage, documentation requirements, billing guidelines, historical information and billing examples. 1. What is CPT Code 20605? CPT 20605 is used to describe ...Avoid getting caught out by getting to know more about The Google Voice Vertification code scam. Here's everything you need to know. Scammers target people in a variety of ways. Th...The Current Procedural Terminology (CPT ®) code 20612 as maintained by American Medical Association, is a medical procedural code under the range - General Introduction or Removal Procedures on the Musculoskeletal System. Subscribe to Codify by AAPC and …Ask Dr. Z Knowledge Base houses over 7,500 coding questions and answers dating back to 2013. Ask Dr. Z Disclaimer . Please note this question was answered in 2016. The coding advice may or may not be outdated. Bundled Guidance Codes, 76942. Date: Mar 4, 2016. Question:Ganglion related CPT Codes. Aspiration or injection ganglion cyst (20612) Aspiration or injection bone cyst (20615) Arthrocentesis, aspiration and/or injection; small joint, bursa or ganglion cyst eg, fingers, toes) (20600) Arthrocentesis, aspiration and/or injection; intermediate joint, bursa or ganglion cyst eg, temporomandibular ...Ganglion related CPT Codes. Aspiration or injection ganglion cyst (20612) Aspiration or injection bone cyst (20615) Arthrocentesis, aspiration and/or injection; small joint, bursa …The official description of CPT code 29880 is: “Arthroscopy, knee, surgical; with meniscectomy (medial AND lateral, including any meniscal shaving) including debridement/shaving of articular cartilage (chondroplasty), same or separate compartment (s), when performed.”. 3. Procedure. The CPT 29880 procedure involves the following steps:Inflamed joints are recognized by being red, warm, tender, swollen, and painful to bend. Arthrocentesis CPT Codes. The CPT codes for arthrocentesis aspiration or injection procedures are 20600-20611. Accurate reimbursement depends on reporting the services provided using all the appropriate code sets and modifiers. 20612 Inject/Aspirate Ganglion Cyst(s) 64450 Inject Peripheral Nerve (non-interdigital) 64455 Inject interdigital Neuroma 64999 Destruction of Interdigital Nerve (via injection, etc.) requires at least 50% alcohol solution (64640 does not seem to be the appropriate CPT code for sclerosing injections; at least at 20612. CPT ® 20611, Under ... 374680"] I wasnt sure if the provider does the hip injection with both u/s guidance and fluoro guidance what cpt codes i exactly should use do i use only 20611 ... [ Read More ] Lumbar interspinous bursa injection. Thanks, I agree that a joint/bursa code makes sense based on the codes' descriptors. You will need ...Code 20612 is for the aspiration of the cyst and/or injection of an anti-inflammatory substance, which often relieves the symptoms without surgery. Q: The patient came to the office for a therapeutic injection, in the left shoulder subacromial space. CPT 20610 can be reported for a major joint or bursa injection or aspiration without ultrasound guidance. Modifier RT, LT, 50, 59 and JW can be needed to report the 20610 CPT code properly. The reimbursement rate for facility charges is $46.76 and for non-facility charges $65.60. CPT ® Code Set. 20611 - CPT® Code in category: Arthrocentesis, aspiration and/or injection... CPT Code information is available to subscribers and includes the CPT code number, short description, long description, guidelines and more. CPT code information is copyright by the AMA. Access to this feature is available in the …For the Baker’s carbuncle, assign CPT code 20612 extra 76942. For the calf aspiration, I would assemble CPT encipher 10160 . You wish does report guidance for to calf aspiration separately since 76942 was already billed once.The official description of CPT code 29880 is: “Arthroscopy, knee, surgical; with meniscectomy (medial AND lateral, including any meniscal shaving) including debridement/shaving of articular cartilage (chondroplasty), same or separate compartment (s), when performed.”. 3. Procedure. The CPT 29880 procedure involves the following …Files related to Aspiration or injection ganglion cyst (20612) Find Window. X. Type in text to find: Aspiration / Injection Codes. Aspiration and Injection CPT Codes. Bursa / Ganglion / Synovectomy CPT Codes. Ganglion Codes.The official description of CPT code 29848 is: “Endoscopy, wrist, surgical, with release of transverse carpal ligament.”. 3. Procedure. The patient is appropriately prepped and anesthetized. The provider makes a small incision in the wrist area. An endoscope is inserted through the incision into the wrist joint.According to new billing guidelines, only two units per visit of CPT 20605 are allowed to be billed. Cost and Relative value units of the facility services: The Cost and total RVUs of CPT code 20605 are $37.72 and 1.09000, respectively, for National and Global Facility Services. Cost and Relative value units of the Non-facility services:A software program is typically written in a high-level programming language such as C or Visual Basic. This native code is then compiled into machine code that can be run on a com...Low-code is a way to design and develop applications with little or no coding. It empowers users with little to no technical background. * Required Field Your Name: * Your E-Mail: ...This is coded as CPT 20612 (aspiration and/or injection of ganglion cyst(s) any location). Submitting any obtained material aspirated from the ganglion would be incidental to the CPT 20612 coding. ... With respect to the appropriate CPT code, I find the most appropriate CPT code to be CPT 11755 which is defined as the following: Biopsy of nail ...The CPT® codes for reporting arthrocentesis are 20600–20615. The descriptors start by stating that the codes represent arthrocentesis — aspiration from or injection into a joint, or both aspiration and injection of the same joint. Proper code selection is based on two factors: Whether ultrasound guidance is used.Question: Which CPT code applies to aspiration of a Baker's cyst? Connecticut Subscriber. Answer: Assuming this was a puncture aspiration, your best bet is 20610 (Arthrocentesis, aspiration and/or injection; major joint or bursa [e.g., shoulder, hip, knee joint, subacromial bursa]). Watch out: Many coders mistakenly choose 20612 …For the Baker’s cyst, assign CPT code 20612 plus 76942. For the calf aspiration, I would assign CPT code 10160. You would not report guidance for the calf …20612. 20615 . 20650. CPT ® 20615, Under General ... View the CPT® code's corresponding procedural code and DRG. In a click, check the DRG's IPPS allowable, length of stay, and more. To plug inpatient facility …1 – M79.675 Pain in left toe • 2,1– CPT 99202. 2 – L60.0 Ingrowing nail • 2 – CPT 11730 - TA. Ingrown toenail requires a procedure-removal. E&M working up the patient for this initial encounter for a new problem requiring a procedure. ICD-10 Codes: CPT Codes: 1 – M79.675 Pain in left toe • 2,1– CPT 99202.Sep 5, 2018 · The Current Procedural Terminology (CPT ®) code 20610 as maintained by American Medical Association, is a medical procedural code under the range - General Introduction or Removal Procedures on the Musculoskeletal System. Inflamed joints are recognized by being red, warm, tender, swollen, and painful to bend. Arthrocentesis CPT Codes. The CPT codes for arthrocentesis aspiration or injection procedures are 20600-20611. Accurate reimbursement depends on reporting the services provided using all the appropriate code sets and modifiers.When billing for CPT code 22612, it is essential to follow coding and payer guidelines to ensure proper reimbursement. This code should be reported per interspace, which is the compartment between two vertebrae. Do not report CPT 22612 in conjunction with CPT 22630 for the same interspace; use CPT 22633 instead.Individual Current Procedural Terminology codes are available online for free through the CPT Code/Relative Value Search, according to the American Medical Association. It is possi...The comprehensive electrophysiologic evaluation with ablation codes 93653-93657 are revised for 2022. Codes 93653 and 93656 underwent significant bundling of related services. A new table in the CPT book clarifies what is included in the revised codes and the new parentheticals are under these codes: 93653, 93654 and 93656.November 14, 2023. CPT (Current Procedural Terminology) codes are used in the United States to report medical procedures and services. Arthrocentesis CPT Codes are 20600, 20610, and 20605 and procedure Arthrocentesis involves fluid aspiration (withdrawal) from a joint space using a needle. Here are the CPT codes associated with arthrocentesis ...The last injection (in a prior course) was given at least six (6) months ago. Repeat injections for shoulder arthritis are limited to a single repeat course. Coding information: If an aspiration and an injection procedure are performed at the same session, bill only one unit for CPT code 20610 or 20611.20612 Thyroid Fine Needle Aspiration 10022 CT Guided Epidural Steriod Injection; Lumbar or Sacral 62323 Specify spinal level(s) to be injected ... Body Part CPT Code Reason for Exam. Whole Body) This exam includes a non-contrast CT scan that is for attenuation correction only. ...help with cpt codes 21011 and 13132 Hello, our provider performs excision of tumor (21011) and the repair (13132 to 13151) at least 2X a week. I understand the repair code calls for a modifier 59 according to CCI edits.This will ensure that only claims billed with the new procedure codes are pended for processing. New CPT codes that are covered by the NC Medicaid program are effective with date of service Jan. 1, 2021. Claims submitted with deleted codes will be denied for dates of service on or after Jan. 1, 2021. Previous policy restrictions continue …
CPT Code_____, Anesthesia for tracheobronchial reconstruction. CPT Code_____, Excision of 6.0 benign lesion of neck and benign 2.5 cm of the nose CPT Code_____ and more. ... 20612. Removal of deep screws from a repaired fracture. CPT Code_____ 20680. Breast reconstruction with free flap, both breasts. CPT Code_____ 19364-50. Split …. Centerpoint map
Coding schools like General Assembly are preparing engineers and data analysts to use ChatGPT At General Assembly, a coding boot camp, ChatGPT is already part of the course. Instru... This is coded as CPT 20612 (aspiration and/or injection of ganglion cyst(s) any location). Submitting any obtained material aspirated from the ganglion would be incidental to the CPT 20612 coding. Be sure to listed and bill for the steroid injected. Tony Poggio, DPM, Alameda, CA . Codingline subscription information can be found at: Looks like from 2022 proposed rule for physician fee schedule new anesthesia codes for procedures like 10160 for seroma drainage and 64633-64636 RFA Facet nerves 01XX2 Anesthesia for percutaneous ima...CPT® Procedural Coding 20610-20611 20610 Arthrocentesis, aspiration and/or injection, major joint or bursa (eg, shoulder, hip, knee, subacromial bursa); without ultrasound guidance ... 20610-20611 2017 Illustrated Coding and Billing Expert for Orthopedics LowerThe comprehensive electrophysiologic evaluation with ablation codes 93653-93657 are revised for 2022. Codes 93653 and 93656 underwent significant bundling of related services. A new table in the CPT book clarifies what is included in the revised codes and the new parentheticals are under these codes: 93653, 93654 and 93656.2 Jun 2019 ... ... CPT or HCPCS procedure code must be billed using a ... 20612. Procedure Codes for Trigger Point ... codes: Diagnosis Codes. M170. M1711. M1712. M172.20612 Aspiration and/or injection of ganglion cyst (s) any location. 64450 Injection, anesthetic agent; other peripheral nerve or branch. 64455 Injection (s), anesthetic agent and/or steroid, plantar common digital nerve (s) (e.g., Morton’s neuroma) However, there are a number of codes for which ultrasound guidance is bundled.For the Baker’s carbuncle, assign CPT code 20612 extra 76942. For the calf aspiration, I would assemble CPT encipher 10160 . You wish does report guidance for to calf aspiration separately since 76942 was already billed once.Each CPT code is followed by its official CPT code description. Resequencing of CPT Codes. The American Medical Association (AMA) employs a resequenced.Response: You "aspirated and injected" a ganglion. This is coded as CPT 20612 (aspiration and/or injection of ganglion cyst (s) any location). Submitting any obtained material aspirated from the ganglion would be incidental to the CPT 20612 coding. Be sure to listed and bill for the steroid injected.Oct 2, 2023 · Codify by AAPC helps you quickly and accurately select the CPT® codes you need to keep your claims on track. With Codify by AAPC cross-reference tools, you can check common code pairings. You also get CPT to ICD-10-CM, CPT to HCPCS, and CPT to Modifier crosswalks. Our NCCI Edit tool will help you prevent denials from Medicare’s National ... LCR B2020-013. Explanation of Revision: Based on CR 11845 (Annual 2021 ICD-10-CM Update) the Billing and Coding Article was revised to add ICD-10-CM code M25.59 to “ICD-10 Codes that Support Medical Necessity/ Group 1 Codes:”. The effective date of this revision is for dates of service on or after October 1, 2020.CPT code 20612 describes the aspiration and/or injection of ganglion cyst(s) in any location. This article will cover the description, procedure, qualifying circumstances, appropriate usage, documentation requirements, billing guidelines, historical information and billing examples.CPT Codes and Fees, Effective January 1, 2015. Surgery, Part 1 (10000-29999) Surgery, Part 2 (30000-49999) Surgery, Part 3 (50000-69999) Assistant Surgery Guide. Radiology. Pathology and Laboratory. Evaluation & Management, Medicine, Physical Therapy.Oct 1, 2015 · The last injection (in a prior course) was given at least six (6) months ago. Repeat injections for shoulder arthritis are limited to a single repeat course. Coding information: If an aspiration and an injection procedure are performed at the same session, bill only one unit for CPT code 20610 or 20611. CPT Code 22612, Arthrodesis Procedures on the Spine (Vertebral Column), Posterior, Posterolateral or Lateral Transverse Process Technique Arthrodesis Procedures on the Spine (Vertebral Column) - Codify by AAPC5. Look up each CPT code to be billed to Medicare on the Medicare ASC List for the associated fee. 6. Sequence the CPT codes for billing from Highest to Lowest Fee listed on the Medicare ASC List. 7. For payors other than Medicare with whom the ASC has a contract and the payor goes by Payment Groupers, sequence the CPT codes on claims …20612. Aspirate/inj ganglion cyst yes. 20615. Treatment of bone cyst yes. 20650. Insert and remove bone pin yes. 20660. Apply rem fixation device yes. 20661.Modifier 50 should not be reported with CPT codes 20551 or 20612, but may be reported, when appropriate, with CPT codes 20550 and 20526. For an Ambulatory Surgical Center (ASC), the appropriate site modifier (RT and/or LT) should be appended to indicate if the service was performed unilaterally or bilaterally..