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    v1.0.28
    OpenPayerBilling CodesMedical And Surgical SuppliesHCPCS hcpcs-a4570-splint-durable-medical-device
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    HCPCS Level II A4570: Splint

    HCPCS Level II code A4570 denotes a splint, a prefabricated or custom-fitted orthopedic device used to immobilize, support, or protect an injured or weakened body part; service type: orthotic device provision and fitting; typical site of service: outpatient clinic, orthotics/prosthetics supplier, or physician office.

    For related coverage guidance, see recent payer policy updates: Salivary Hormone Testing, Parathyroid Hormone, Phosphorus, Calcium, and Magnesium Testing, Bone Turnover Markers Testing.

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    Table of contents

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    Clinical & Coding Specifications

    Clinical Context

    A 56-year-old patient presents to an outpatient orthotics clinic with wrist pain and functional limitation after a distal radius fracture treated nonoperatively. The clinician evaluates healing on radiographs, assesses range of motion and swelling, and determines a custom or prefabricated splint is required to immobilize the wrist and support early functional activity. The workflow includes patient assessment, measurement and fitting of a prefabricated or custom-molded splint, patient education on wear schedule and skin care, documentation of medical necessity linking the splint to the diagnosis (for example, fracture, acute sprain, or tendonitis), and supply of the device. Follow-up visits occur to adjust or replace the splint as swelling changes or to transition to a less restrictive orthosis as healing progresses. Typical sites of service are outpatient clinic, orthotics/prosthetics facility, urgent care, and emergency department depending on acuity and setting.

    Related CPT Codes

    CPT CodeDescriptionRelationship to This Procedure
    29075Application of short arm splint (forearm to hand); staticUsed when a clinician applies a prefabricated or molded short arm splint for wrist/distal radius immobilization
    29125Application of long arm splint (elbow to hand); staticUsed when immobilization of the elbow and forearm is required, for example with proximal forearm injuries
    29515Application of wrist/hand splint, static progressive or serial/static orthosisUsed for custom fabrication or serial adjustments during rehabilitation
    97162Physical therapy evaluation, established patient, moderate complexityPerformed when a therapist evaluates function and prescribes a splint as part of therapy plan
    97760Orthotic management and training, upper extremityUsed when the clinician provides training, fitting, and adjustments for the splint in a clinical session

    Related Modifiers

    7 rows

    ModifierDescriptionWhen to Use
    59Modifier 59 indicates a distinct procedural service when two procedures that are not normally billed together are clinically and procedurally separate. The CPT definition (as reiterated by CMS)…- Use modifier -59 to report a distinct procedural service when documentation supports that the procedure reported is not normally billed together with another service on the same day because of a…
    22Modifier –22 (Increased Procedural Services) is used when a reported procedure is substantially more extensive than normally required. The CPT Manual and CMS state it may be appended only when the…- When to use: Append modifier -22 to a procedural CPT code when the service performed is substantially more extensive than the usual service described by that code — i.e., the procedure required…
    52Modifier ‑52 (Reduced Services) indicates that a service or procedure was partially reduced or omitted at the provider’s discretion, allowing reporting of the basic procedure number with a qualifier…- Use modifier -52 when a physician or qualified health professional electively reduces or omits part of a procedure or service (for example, performing fewer required views or omitting a portion of…
    53Modifier 53 (Discontinued Procedure) signals that a surgical or diagnostic service was begun by the physician but terminated because of extenuating circumstances that threatened the patient’s…- Use modifier -53 when a physician/qualified healthcare professional has started a surgical or diagnostic procedure (e.g., anesthesia administered, incision or scope insertion) and then discontinues…
    78CPT modifier -78 indicates an unplanned, related return to the operating or procedure room by the same provider during the global postoperative period. It is appended when treatment for a…- Use modifier -78 when an unplanned, related complication during the original procedure’s global postoperative period requires the patient to return to a formal operating or procedure room and the…
    62Modifier 62 indicates that two surgeons function as co‑surgeons, each performing distinct parts of the same primary surgical procedure. It is appended to the primary procedure code (and any…- Use modifier -62 when two surgeons act as co‑surgeons (both primary surgeons) on a single definitive primary procedure, each performing distinct parts of the same surgical procedure (append -62 to…
    56Modifier ‑56 indicates the reporting provider furnished only the preoperative management for a surgical procedure and did not perform the intraoperative or postoperative care. It is used in…- Use Modifier -56 when a provider performs only the preoperative management in a split‑care situation (one physician manages preop care while a different physician performs the intraoperative…

    Related Provider Taxonomies

    8 rows

    Taxonomy CodeSpecialtyNotes
    207Q00000XFamily Medicine PhysicianFamily Medicine is the medical specialty which is concerned with the total health care of the individual and the family. It is the specialty in breadt…
    3336C0004XCompounding PharmacyA pharmacy that specializes in the preparation of components into a drug preparation as the result of a Practitioner's Prescription Drug Order or init…
    363L00000XNurse Practitioner(1) A registered nurse provider with a graduate degree in nursing prepared for advanced practice involving independent and interdependent decision mak…
    1710I1003XIndependent Duty Medical TechniciansAn Independent Duty Medical Technician (IDMT) is specially trained and educated to perform primary medical care, minor surgical services, and treatmen…
    1223P0106XOral and Maxillofacial Pathology DentistryThe specialty of dentistry and discipline of pathology that deals with the nature, identification, and management of diseases affecting the oral and m…
    367A00000XAdvanced Practice MidwifeAdvanced practice midwifery encompasses the independent provision of care during pregnancy, childbirth, and the postpartum period; sexual and reproduc…
    1223P0700XProsthodonticsThat branch of dentistry pertaining to the restoration and maintenance of oral functions, comfort, appearance and health of the patient by the restora…
    2083B0002XObesity Medicine (Preventive Medicine) PhysicianA physician who specializes in the treatment of obesity demonstrates competency in and a thorough understanding of the treatment of obesity and the ge…

    Related ICD-10-CM Codes

    25 rows

    ICD-10-CM CodeDescription
    G56.01Carpal tunnel syndrome, right upper limb
    M16.11Unilateral primary osteoarthritis, right hip
    M17.11Unilateral primary osteoarthritis, right knee
    M19.071Primary osteoarthritis, right ankle and foot
    M24.271Disorder of ligament, right ankle
    M25.411Effusion, right shoulder
    M25.511Pain in right shoulder
    M25.561Pain in right knee
    M65.321Trigger finger, right index finger
    M77.11Lateral epicondylitis, right elbow

    Showing 1–10 of 25

    Related Payer Policy Updates

    Specialty: Endocrinology1 / 3

    10 rows

    PolicyPayerEffective Date
    Salivary Hormone TestingOscar Health2026-10-01
    Parathyroid Hormone, Phosphorus, Calcium, and Magnesium TestingOscar Health2026-10-01
    Bone Turnover Markers TestingOscar Health2026-10-01
    Testosterone — Coverage Criteria for Measurement and MonitoringOscar Health2026-10-01
    Diabetes Mellitus Testing — Coverage CriteriaOscar Health2026-10-01
    Thyroid Disease TestingOscar Health2026-10-01
    Thyroid Disease Testingblue cross blue shield - louisiana2026-09-15
    Thyroid Disease TestingBlue Cross Blue Shield - New Mexico2026-09-04
    Parathyroid Hormone, Phosphorous, Calcium and Magnesium TestingBlue Cross Blue Shield - New Mexico2026-09-04
    Testosterone laboratory testing and managementPremera Bluecross2026-09-04

    Related Codes

    HCPCS-A4206-STERILE-SYRINGE-1CC-NEEDLE

    HCPCS A4206: Syringe with Needle, 1 cc or Less, Sterile

    HCPCS-A4207-STERILE-2CC-SYRINGE-WITH-NEEDLE

    HCPCS Level II A4207: Syringe with Needle, Sterile 2 cc

    HCPCS-A4208-STERILE-3CC-SYRINGE-WITH-NEEDLE

    HCPCS Level II A4208: Syringe with Needle, Sterile 3 cc

    HCPCS-A4209-STERILE-SYRINGE-WITH-NEEDLE-5CC-OR-GREATER

    HCPCS Level II A4209: Syringe with Needle, Sterile 5 cc or Greater

    HCPCS-A4210-NEEDLE-FREE-INJECTION-DEVICE

    HCPCS Level II A4210: Needle-free Injection Device, Each

    HCPCS-A4211-SUPPLIES-SELF-ADMINISTERED-INJECTIONS

    HCPCS Level II A4211: Supplies for Self-Administered Injections

    HCPCS-A4212-NON-CORING-NEEDLE-STYLET-CATHETER-ACCESS-SUPPLY

    HCPCS Level II A4212: Non-coring Needle or Stylet with/without Catheter

    HCPCS-A4213-STERILE-SYRINGE-20CC-OR-GREATER

    HCPCS Level II A4213: Syringe, Sterile, 20 cc or Greater, Each

    HCPCS-A4215-STERILE-NEEDLE-SINGLE-EACH

    HCPCS Level II A4215: Needle, Sterile, Any Size

    HCPCS-A4216-STERILE-DILUENT-FLUSH-10ML

    HCPCS Level II A4216: Sterile Diluent/Flush, 10 ml

    Showing 1–10 of 633

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    Frequently Asked Questions

    References

    1. 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. 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. 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.
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