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    v1.0.28
    OpenPayerBilling CodesOrthotic Procedures and servicesHCPCS hcpcs-l3904-wrist-hand-finger-orthosis-electric-custom
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    HCPCS Level II L3904: Wrist Hand Finger Orthosis, External Powered, Electric, Custom Fabricated

    HCPCS Level II code L3904 describes a custom-fabricated, externally powered electric wrist/hand/finger orthosis used to support or assist wrist, hand, and finger function; service type: durable medical equipment (custom external orthosis); typical site of service: outpatient clinic, outpatient rehabilitation facility, or home use when delivered as custom DME.

    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 52-year-old patient with significant right wrist and hand weakness following a cervical spinal cord injury is evaluated by a physiatrist and occupational therapist for functional restoration. The patient demonstrates inadequate active wrist and finger extension, limiting activities of daily living such as grasping and releasing objects. After trialing conservative therapy and a myoelectric control assessment, the interdisciplinary team prescribes a custom-fabricated, externally powered electric wrist-hand-finger orthosis coded as L3904. The workflow includes initial evaluation, electrode/mode selection and trial, custom casting or digital scanning, fabrication of the device with integrated electric actuators and control electronics, device fitting and programming, patient training for donning/doffing and control strategies, and scheduled follow-up visits for adjustments and durability checks.

    Related CPT Codes

    CPT CodeDescriptionRelationship to This Procedure
    97760Orthotic management and training, upper extremity(s), initial devicePerformed during initial fitting and patient training for the custom electric wrist-hand-finger orthosis.
    97763Orthotic and prosthetic management and training, lower extremity, for prosthesis/orthosis; subsequentNot directly for upper extremity; Data not available in the input.
    97003Application of a modality to one or more areas; electrical stimulation (manual), each 15 minutesMay be used during pre-prosthetic neuromuscular re-education or myoelectric control assessment sessions.
    99070Supplies and materials provided by the physician over and above those usually included with the office visitUse for additional non-standard components or supplies during fitting not included in the orthosis code.
    A9270Non-covered item or serviceIncluded when billing systems require identification of non-covered supplies related to the device.

    Related Modifiers

    8 rows

    ModifierDescriptionWhen to Use
    26Modifier 26 (Professional Component) identifies and bills only the professional portion of a split service — the physician’s interpretation, report, and medical judgment — when the technical…- Use CPT Modifier -26 when you are billing only the professional component (PC) of a split‑bill eligible service—i.e., you performed the physician interpretation, medical judgment and prepared a…
    50Modifier –50 (Bilateral Procedure) is appended to a CPT code when an identical procedure is performed on paired anatomical structures during the same operative session. The AMA states to add…- Use modifier -50 when the same CPT surgical, diagnostic, or radiology procedure is performed on paired anatomical structures (both sides of the body) during the same operative/session by the same…
    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…
    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…
    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…
    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…
    82Modifier 82 is appended to a surgical CPT code to indicate that an attending physician acted as an assistant because a qualified resident surgeon was unavailable. In teaching hospitals it documents…- When to use: Append modifier 82 in teaching-hospital settings to indicate a physician served as an assistant surgeon because a qualified resident surgeon was unavailable (includes situations where…

    Related Provider Taxonomies

    8 rows

    Taxonomy CodeSpecialtyNotes
    225100000XPhysical TherapistPhysical therapists (PTs) are licensed health care professionals who diagnose and treat individuals of all ages, from newborns to the very oldest, who…
    208000000XPediatrics PhysicianA pediatrician is concerned with the physical, emotional and social health of children from birth to young adulthood. Care encompasses a broad spectru…
    367A00000XAdvanced Practice MidwifeAdvanced practice midwifery encompasses the independent provision of care during pregnancy, childbirth, and the postpartum period; sexual and reproduc…
    173F00000XSleep Specialist (PhD)Sleep medicine is a clinical specialty with a focus on clinical problems that require accurate diagnosis and treatment. The knowledge base of sleep me…
    2279H0200XHome Health Registered Respiratory TherapistHome care fosters individual responsibility for self-management of chronic respiratory conditions. It includes individualized assessment based plans …
    2085B0100XBody Imaging PhysicianA Radiology doctor of Osteopathy that specializes in Body Imaging.
    170100000XPh.D. Medical GeneticsA medical geneticist works in association with a medical specialist, is affiliated with a clinical genetics program, and serves as a consultant to med…
    364SP0809XAdult Psychiatric/Mental Health Clinical Nurse SpecialistPhysician Assistants & Advanced Practice Nursing Providers · Clinical Nurse Specialist

    Related ICD-10-CM Codes

    26 rows

    ICD-10-CM CodeDescription
    G54.9Nerve root and plexus disorder, unspecified
    G56.01Carpal tunnel syndrome, right upper limb
    G56.02Carpal tunnel syndrome, left upper limb
    G82.20Paraplegia, unspecified
    G83.4Cauda equina syndrome
    I69.391Dysphagia following cerebral infarction
    M05.821Other rheumatoid arthritis with rheumatoid factor of right elbow
    M06.871Other specified rheumatoid arthritis, right ankle and foot
    M18.0Bilateral primary osteoarthritis of first carpometacarpal joints
    M19.041Primary osteoarthritis, right hand

    Showing 1–10 of 26

    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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