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    v1.0.28
    OpenPayerBilling CodesOrthotic Procedures and servicesHCPCS hcpcs-l4387-prefabricated-walking-boot-orthotic
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    HCPCS Level II L4387: Prefabricated Walking Boot, Off-the-Shelf

    HCPCS Level II code L4387 describes a prefabricated, off-the-shelf walking boot (non-pneumatic, with or without joints and with or without interface material) used to stabilize and protect the foot and ankle; the service is durable medical equipment supplied as a prefabricated orthotic device typically provided in outpatient clinics, orthotics/prosthetics offices, durable medical equipment suppliers, or hospital outpatient departments for patients requiring immobilization or protected weight-bearing during recovery.

    For related coverage guidance, see recent payer policy updates: Interferential Stimulation Devices (for home use), Prior Authorization for Durable Medical Equipment (DME), Breast Pumps.

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    Clinical & Coding Specifications

    Clinical Context

    A patient in their 40s presents to an orthopedics or podiatry clinic after sustaining an acute ankle inversion injury while playing recreational basketball. The patient reports immediate pain, difficulty weight-bearing, and swelling around the lateral malleolus. The clinician performs an exam, obtains plain radiographs to rule out fracture, and documents a moderate lateral ankle sprain. The clinician determines that immobilization with a prefabricated, off-the-shelf non-pneumatic walking boot is clinically appropriate to protect soft tissues, allow controlled weight-bearing, and reduce pain during ambulation.

    The typical clinical workflow: the clinician documents diagnosis and medical necessity in the chart; selects the appropriate size and model of L4387 walking boot from available stock; fits the device in-office, provides patient education on use and skin checks, and supplies any necessary padding or interface material. The claim is submitted to the patient’s payor with the appropriate place-of-service code for an outpatient clinic or durable medical equipment supply, and commonly includes a modifier for laterality (e.g., LT for left) and any other applicable billing modifiers per payer policy. Follow-up occurs within 1–2 weeks to assess healing and device tolerance, with transition to weaning or physical therapy as indicated.

    Related CPT Codes

    CPT CodeDescriptionRelationship to This Procedure
    97610Debridement (e.g., for wound care), non-selective debridement of open woundMay be performed prior to fitting if skin breakdown or ulceration requires cleaning before device application
    11042Debridement; subcutaneous tissue (first 20 sq cm or less)May be performed if minor wound care is needed before device use
    99213Office visit for established patient, low to moderate severityTypical E/M code for the initial evaluation, documentation of diagnosis, and device selection/fitting
    99070Supplies and materials (e.g., extra padding or strapping)Used to bill additional non-coded supplies provided with the walking boot
    97530Therapeutic activitiesMay be used in follow-up physical therapy to restore ambulation post-immobilization

    Related Modifiers

    5 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…
    P4Modifier P4 indicates the patient is ASA Physical Status IV — a patient with severe systemic disease that is a constant threat to life. It is assigned by the anesthesia provider and must be supported…- When to apply: Use modifier P4 only on anesthesia CPT codes (00100–01999) to indicate ASA Physical Status IV — a patient with severe systemic disease that is a constant threat to life (examples:…
    33Modifier 33 was created by the American Medical Association in response to the Affordable Care Act to identify services provided for preventive intent. It is appended to CPT/HCPCS codes that could be…- Use modifier -33 when a CPT/HCPCS service that can be billed as either preventive or diagnostic/treatment is provided with preventive intent and aligns with USPSTF A or B recommendations or other…
    2PModifier -2P is a Category II performance‑measure exclusion appended to a CPT Category II (quality) code when the provider did not perform the measured action because of patient‑related reasons (for…- Use modifier 2P only with CPT Category II (performance‑measure) codes when a patient‑specific reason prevented performance of the measured action (for example, patient refusal, economic or social…
    80CPT® Modifier 80 (Assistant Surgeon) is appended to a surgical CPT code when a physician (MD or DO) provides full, continuous assistance throughout the operative procedure. It is intended only for…- Use CPT Modifier -80 when a physician (MD or DO) serves as an assistant surgeon and provides full, continuous assistance throughout the entire operative procedure; append -80 to the surgical CPT…

    Related Provider Taxonomies

    8 rows

    Taxonomy CodeSpecialtyNotes
    207P00000XEmergency Medicine PhysicianAn emergency physician focuses on the immediate decision making and action necessary to prevent death or any further disability both in the pre-hospit…
    207K00000XAllergy & Immunology PhysicianAn allergist-immunologist is trained in evaluation, physical and laboratory diagnosis, and management of disorders involving the immune system. Select…
    193200000XMulti-Specialty GroupA business group of one or more individual practitioners, who practice with different areas of specialization.
    208000000XPediatrics PhysicianA pediatrician is concerned with the physical, emotional and social health of children from birth to young adulthood. Care encompasses a broad spectru…
    1835P1200XPharmacotherapy PharmacistA licensed pharmacist who has demonstrated specialized knowledge and skill in optimizing pharmacotherapeutic care of patients, by developing, implemen…
    2080P0210XPediatric Nephrology PhysicianA pediatrician who deals with the normal and abnormal development and maturation of the kidney and urinary tract, the mechanisms by which the kidney c…
    1835E0208XEmergency Medicine PharmacistA licensed pharmacist who has demonstrated specialized knowledge and skill in the care for patients at the bedside in emergency medicine settings.
    207RH0005XHypertension Specialist PhysicianA Hypertension Specialist is a physician who concentrates on all aspects of the diagnosis and treatment of hypertension.

    Related Payer Policy Updates

    Specialty: Durable Medical Equipment (DME)1 / 3

    10 rows

    PolicyPayerEffective Date
    Interferential Stimulation Devices (for home use)Moda Health2026-10-01
    Prior Authorization for Durable Medical Equipment (DME)Blue Cross Blue Shield - Rhode Island2026-10-01
    Breast PumpsModa Health2026-09-01
    Personal Emergency Response SystemsCareSource Georgia2026-09-01
    Continuous Passive Motion (CPM) DevicesCigna2026-08-15
    Push-Rim Activated Power-Assist Device (E0986) — Manual Wheelchair Accessorymoda_health_plan_inc2026-08-13
    Beds and Mattresses (for Ohio Only)Colorado Rocky Mountain Health Plans2026-08-01
    Beds and Mattresses (for Kentucky Only)UnitedHealthcare2026-08-01
    Pneumatic Compression Devices (for Nebraska Only)UnitedHealthcare2026-08-01
    Indications for Coverage — Hospital beds, support surfaces, and safety enclosure beds (DME)Colorado Rocky Mountain Health Plans2026-08-01

    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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