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    v1.0.28
    OpenPayerBilling CodesProsthetic ProceduresHCPCS hcpcs-l8440-prosthetic-shrinker-below-knee
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    HCPCS Level II L8440: Prosthetic Shrinker, Below Knee

    HCPCS Level II code L8440 describes a prosthetic shrinker for a below-knee amputation, supplied as an individual garment to provide limb volume management and shaping for residual limb edema control and preparation for prosthetic fitting; service type is prosthetic supply and the typical site of service is outpatient prosthetics/orthotics clinics or durable medical equipment providers.

    For related coverage guidance, see recent payer policy updates: Clinical Review Criteria — Lymphedema Therapy and Training (Complete Decongestive Therapy; LVA), Therapy Services — Electric Stimulation for Pain, Swelling and Function in a Clinic Setting, Site of Care: Outpatient Hospital Setting for Physical and Occupational Therapy.

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    Clinical & Coding Specifications

    Clinical Context

    A patient presenting after transtibial (below-knee) amputation is fitted with a prosthetic socket and requires a prosthetic shrinker L8440 to reduce limb volume and shape the residual limb during the early post‑operative and pre‑prosthetic fitting phase. Typical patient is an adult who underwent a below-knee amputation for peripheral arterial disease, diabetic complications, trauma, or infection. The shrinker is ordered by the treating prosthetist or surgeon and dispensed by a DME supplier at the first post‑operative visit or during follow‑up when significant postoperative edema is present.

    Clinical workflow: The surgeon or prosthetist documents residual limb status, limb circumference, and need for compression to control edema and shape the limb. An order for prosthetic shrinker L8440 is placed with medical necessity supporting diagnoses and measurements. The DME supplier fits the patient, provides education on wear schedule and skin care, and documents delivery. Follow‑up visits assess limb volume changes and determine timing for definitive socket fitting or continued shrinker use.

    Related CPT Codes

    CPT CodeDescriptionRelationship to This Procedure
    97760Orthotic(s) fitting and training, initial encounter, lower extremity, with training of patient/caregiver in useUsed when initial fitting and patient education for the shrinker or preparatory orthotic is provided as a therapy service
    97763Orthotic/prosthetic management and training, upper and/or lower extremity, initial encounterUsed by therapists for comprehensive prosthetic management and training around the time of shrinker use
    99213Office or other outpatient visit for established patient, typically 15 minutesCommon for follow-up clinical assessment documenting residual limb status and medical necessity for L8440
    29540Application of short leg cast, walking or nonwalkingOccasionally used earlier in postoperative care when casts or dressings are applied prior to shrinker fitting
    20610Arthrocentesis, aspiration and/or injection; major joint or bursa (e.g., when residual limb is inflamed)Performed infrequently if aspiration or injection is needed for adjacent joint/bursal issues that affect prosthetic fitting

    Related Modifiers

    5 rows

    ModifierDescriptionWhen to Use
    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…
    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
    207L00000XAnesthesiology PhysicianAn anesthesiologist is trained to provide pain relief and maintenance, or restoration, of a stable condition during and immediately following an opera…
    208000000XPediatrics PhysicianA pediatrician is concerned with the physical, emotional and social health of children from birth to young adulthood. Care encompasses a broad spectru…
    261QM2500XMedical Specialty Clinic/CenterAn entity, facility, or distinct part of a facility providing diagnostic, treatment, and prescriptive services related to a specific area of medical s…
    163WR1000XReproductive Endocrinology/Infertility Registered NurseNursing Service Providers · Registered Nurse
    2084P0800XPsychiatry PhysicianA Psychiatrist specializes in the prevention, diagnosis, and treatment of mental disorders, emotional disorders, psychotic disorders, mood disorders, …
    335E00000XProsthetic/Orthotic SupplierAn organization that provides prosthetic and orthotic care which may include, but is not limited to, patient evaluation, prosthesis or orthosis design…
    164X00000XLicensed Vocational NurseAn individual with post-high school vocational training and practical experience in the provision of nursing care at a level less than that required f…
    261QH0100XHealth Service Clinic/CenterAmbulatory Health Care Facilities · Clinic/Center

    Related ICD-10-CM Codes

    25 rows

    ICD-10-CM CodeDescription
    E10.621Type 1 diabetes mellitus with foot ulcer
    E11.621Type 2 diabetes mellitus with foot ulcer
    F94.1Reactive attachment disorder of childhood
    G54.4Lumbosacral root disorders, not elsewhere classified
    G54.6Phantom limb syndrome with pain
    L97.223Non-pressure chronic ulcer of left calf with necrosis of muscle
    L97.301Non-pressure chronic ulcer of unspecified ankle limited to breakdown of skin
    L97.312Non-pressure chronic ulcer of right ankle with fat layer exposed
    L97.329Non-pressure chronic ulcer of left ankle with unspecified severity
    M25.571Pain in right ankle and joints of right foot

    Showing 1–10 of 25

    Related Payer Policy Updates

    Specialty: Physical Medicine, Rehab & Therapies1 / 2

    3 rows

    PolicyPayerEffective Date
    Clinical Review Criteria — Lymphedema Therapy and Training (Complete Decongestive Therapy; LVA)Kaiser Permanente2026-09-01
    Therapy Services — Electric Stimulation for Pain, Swelling and Function in a Clinic SettingCigna2026-08-15
    Site of Care: Outpatient Hospital Setting for Physical and Occupational TherapyCigna2026-08-15

    Related Codes

    HCPCS-L5000-PARTIAL-FOOT-SHOE-INSERT-LONGITUDINAL-ARCH-TOE-FILLER

    HCPCS Level II L5000: Partial Foot Shoe Insert with Longitudinal Arch, Toe Filler

    HCPCS-L5010-PARTIAL-FOOT-MOLDED-SOCKET-ANKLE-HEIGHT-TOE-FILLER

    HCPCS L5010: Partial Foot Molded Socket, Ankle Height, With Toe Filler

    HCPCS-L5020-PARTIAL-FOOT-MOLDED-SOCKET-TIBIAL-TUBERCLE-TOE-FILLER

    HCPCS L5020: Partial Foot Molded Socket with Toe Filler

    HCPCS-L5050-ANKLE-SYMES-MOLDED-SOCKET-SACH-FOOT

    HCPCS L5050: Ankle/Symes Molded Socket with SACH Foot

    HCPCS-L5060-ANKLE-SYMES-METAL-FRAME-MOLDED-LEATHER-SOCKET-ARTICULATED-ANKLE-FOOT

    HCPCS L5060: Ankle/Symes Metal Frame with Molded Leather Socket

    HCPCS-L5100-BELOW-KNEE-MOLDED-SOCKET-SHIN-SACH-FOOT

    HCPCS Level II L5100: Below-Knee Molded Socket with Shin and SACH Foot

    HCPCS-L5105-BELOW-KNEE-PLASTIC-SOCKET-SACH-FOOT

    HCPCS L5105: Below-Knee Plastic Socket Prosthesis with SACH Foot

    HCPCS-L5150-KNEE-DISARTICULATION-MOLDED-SOCKET-EXTERNAL-KNEE-SACH-FOOT

    HCPCS L5150: Knee Disarticulation Molded Socket with External Knee and SACH Foot

    HCPCS-L5160-KNEE-DISARTICULATION-MOLDED-SOCKET-BENT-KNEE-SACH-FOOT

    HCPCS Level II L5160: Knee Disarticulation Molded Socket, Bent Knee Configuration

    HCPCS-L5200-ABOVE-KNEE-MOLDED-SOCKET-SINGLE-AXIS-KNEE-SACH-FOOT

    HCPCS Level II L5200: Above-knee Prosthesis with Molded Socket and Single-axis Knee

    Showing 1–10 of 472

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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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