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    v1.0.28
    OpenPayerBilling CodesOrthotic Procedures and servicesHCPCS hcpcs-l2840-tibial-length-sock-lower-extremity-orthosis-fracture
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    HCPCS Level II L2840: Tibial Length Sock for Lower Extremity Orthosis

    HCPCS Level II code L2840 describes an addition to a lower extremity orthosis consisting of a tibial length sock used for fracture support or equivalent indications; this item is a component of durable medical equipment and supplies for lower-limb immobilization and protection, typically provided as an adjunct to an orthotic device in outpatient clinics, orthotics/prosthetics shops, or hospital outpatient settings and classified as supply/service for lower extremity orthosis care.

    For related coverage guidance, see recent payer policy updates: Interferential Stimulation Devices (for home use), Durable Medical Equipment (DME): Tumor Treating Fields (Alternating Electric Field Therapy) Medical Guideline, Durable Medical Equipment (DME): Bone Growth Stimulators Medical Guideline.

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    Clinical & Coding Specifications

    Clinical Context

    A 58-year-old patient presents after a distal tibial fracture treated with an ambulatory lower extremity orthosis. During follow-up, the prosthetics/orthotics clinician fits a tibial length sock as an addition to the existing orthosis to accommodate limb volume changes and improve comfort and fit. Typical workflow: evaluation by orthotics clinician, measurement of limb and socket interfaces, selection of a tibial length sock (L2840) to add to the orthosis, documentation of medical necessity tied to the fracture diagnosis, application and adjustment in the clinic, patient education on donning/doffing and skin care, and scheduling of follow-up for fit reassessment. Typical site of service: outpatient orthotics/prosthetics clinic, hospital outpatient department, or ambulatory surgery/clinic setting when orthotic adjustments occur. Typical patient scenario: post-fracture healing phase with persistent swelling or volume fluctuation requiring a tibial length sock to maintain orthosis fit and prevent skin breakdown; may be used in conjunction with a fracture lower extremity orthosis or custom fabricated device.

    Related CPT Codes

    CPT CodeDescriptionRelationship to This Procedure
    97760Orthotic management and training, initial; cast/strapping/temporary fitting and trainingMay be performed when fitting the tibial length sock and training the patient in use
    97763Orthotic/prosthetic supply; training, subsequentUsed for follow-up training sessions after initial sock fitting
    99070Supplies and materials (except spectacles), provided by the physician over and above those usually included with the office visitUsed when non-standard supplies for sock adaptation are provided in clinic
    L1906AFO, off-the-shelf, small, medium, or largeCommon orthosis to which a tibial length sock (L2840) may be added
    L1970AFO, molded to patient model, plastic or other material, posterior entryRelated custom orthosis where a tibial length sock may be an addition

    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…
    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…
    76Modifier -76, Repeat Procedure or Service by Same Physician or Other Qualified Health Care Professional, is appended when the same provider performs an identical, medically necessary procedure or…- Use modifier -76 when the same physician or other qualified health care professional performs an identical procedure or service a second (or subsequent) time on the same date of service and the…
    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…
    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…

    Related Provider Taxonomies

    8 rows

    Taxonomy CodeSpecialtyNotes
    2080P0206XPediatric Gastroenterology PhysicianA pediatrician who specializes in the diagnosis and treatment of diseases of the digestive systems of infants, children and adolescents. This speciali…
    207L00000XAnesthesiology PhysicianAn anesthesiologist is trained to provide pain relief and maintenance, or restoration, of a stable condition during and immediately following an opera…
    246QL0900XLaboratory Management Specialist/TechnologistTechnologists, Technicians & Other Technical Service Providers · Specialist/Technologist, Pathology
    226300000XKinesiotherapistA provider trained and educated in the applied science of medically prescribed therapeutic exercise, education and adapted physical activities designe…
    103TC0700XClinical PsychologistA psychologist who provides continuing and comprehensive mental and behavioral health care for individuals and families; consultation to agencies and …
    2080N0001XNeonatal-Perinatal Medicine PhysicianA pediatrician who is the principal care provider for sick newborn infants. Clinical expertise is used for direct patient care and for consulting with…
    364ST0500XTransplantation Clinical Nurse SpecialistPhysician Assistants & Advanced Practice Nursing Providers · Clinical Nurse Specialist
    207SG0203XClinical Molecular Genetics PhysicianA clinical molecular geneticist demonstrates competence in performing and interpreting molecular analyses relevant to the diagnosis and management of …

    Related Payer Policy Updates

    Specialty: Durable Medical Equipment (DME)1 / 3

    5 rows

    PolicyPayerEffective Date
    Interferential Stimulation Devices (for home use)Moda Health2026-10-01
    Durable Medical Equipment (DME): Tumor Treating Fields (Alternating Electric Field Therapy) Medical GuidelineWPS Health Insurance2026-10-01
    Durable Medical Equipment (DME): Bone Growth Stimulators Medical GuidelineWPS Health Insurance2026-10-01
    General Durable Medical Equipment (DME) Medical GuidelineWPS Health Insurance2026-10-01
    Prior Authorization for Durable Medical Equipment (DME)Blue Cross Blue Shield - Rhode Island2026-10-01

    Related Codes

    HCPCS-L0112-CRANIAL-CERVICAL-ORTHOSIS-CONGENITAL-TORTICOLLIS-CUSTOM

    HCPCS L0112: Cranial Cervical Orthosis, Congenital Torticollis Type

    HCPCS-L0113-CRANIAL-CERVICAL-ORTHOSIS-TORTICOLLIS

    HCPCS Level II L0113: Prefabricated Cranial Cervical Orthosis for Torticollis

    HCPCS-L0130-CERVICAL-FLEXIBLE-THERMOPLASTIC-COLLAR-MOLDED-TO-PATIENT

    HCPCS Level II L0130: Cervical Flexible Thermoplastic Collar, Molded to Patient

    HCPCS-L0140-CERVICAL-SEMI-RIGID-ADJUSTABLE-PLASTIC-COLLAR

    HCPCS Level II L0140: Cervical Semi-Rigid Adjustable Plastic Collar

    HCPCS-L0150-CERVICAL-SEMI-RIGID-ADJUSTABLE-CHIN-CUP

    HCPCS Level II L0150: Cervical Semi-Rigid Adjustable Chin Cup

    HCPCS-L0160-CERVICAL-SEMI-RIGID-OCCIPITAL-MANDIBULAR-SUPPORT

    HCPCS Level II L0160: Cervical Semi-Rigid Occipital/Mandibular Support

    HCPCS-L0170-CERVICAL-COLLAR-MOLDED-TO-PATIENT-MODEL

    HCPCS Level II L0170: Cervical Collar, Custom-Molded

    HCPCS-L0172-CERVICAL-COLLAR-SEMI-RIGID-THERMOPLASTIC-FOAM

    HCPCS L0172: Cervical Collar, Semi-Rigid Prefabricated

    HCPCS-L0174-CERVICAL-COLLAR-SEMI-RIGID-THORACIC-EXTENSION

    HCPCS L0174: Cervical Collar, Semi-Rigid Thermoplastic with Thoracic Extension

    HCPCS-L0180-CERVICAL-MULTIPLE-POST-COLLAR-OCCIPITAL-MANDIBULAR-ADJUSTABLE

    HCPCS Level II L0180: Cervical Orthosis with Occipital/Mandibular Supports

    Showing 1–10 of 466

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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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