CurrentCareSourcePolicy N/A

Negative Pressure Wound Therapy (NPWT) — Arkansas PASSE

Medical policy governing coverage and medical necessity criteria for negative pressure wound therapy for CareSource Arkansas PASSE members, including indications, continuation criteria, supply allowances, and exclusions.

Policy Summary

PayerCareSource

PolicyNegative Pressure Wound Therapy (NPWT) — Arkansas PASSE

Policy CodePolicy N/A

Change TypeNo material changes

Effective DateJan 1, 2025

Next Review DateN/A

Key ActionObtain prior authorization for initial outpatient NPWT (approved for one month) and submit documentation of measurable improvement to support one-month renewal increments.

SourceLink

POLICY UPDATE CHANGES

No material clinical or coverage changes in this revision.

1 monthinitial outpatient approval period

1‑monthcontinued approval interval

10/monthstandard canister allowance

15/wound/mostandard dressing kit allowance

Stage III/IVqualifying pressure ulcer stage

Coverage and Medical Necessity Criteria

inv-01: Covered Indications

CareSource considers NPWT medically necessary when ANY of the following clinical criteria are met:

Overall Indications

A. Stage III or IV pressure ulcer: Stage III or IV pressure ulcer and ALL of the following: member has been on an every-2-hour turning and repositioning regimen; pressure relief techniques and/or pressure-reducing surfaces have been ordered (eg, foam overlay mattress, egg crate foam mattress, or low-air-loss devices) and documented ongoing compliance in the medical record; incontinence and moisture issues have been appropriately managed; and a comprehensive diabetic management program has been implemented where applicable (A1C management, medication management, and ongoing diabetic care).
See staging definitions
B. Chronic neuropathic ulcer: Chronic neuropathic ulcer that meets BOTH of the following: foot care has been performed by a medical professional including general inspection, nail care, reduction in pressure on the foot ulcer, and monofilament testing; and the second required criterion as specified in the member record is met.
Policy lists two required items for chronic neuropathic ulcer

Policy Summary

PayerCareSource

PolicyNegative Pressure Wound Therapy (NPWT) — Arkansas PASSE

Policy CodePolicy N/A

Change TypeNo material changes

Effective DateJan 1, 2025

Next Review DateN/A

Key ActionObtain prior authorization for initial outpatient NPWT (approved for one month) and submit documentation of measurable improvement to support one-month renewal increments.

SourceLink

On This Page

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inv-02: Continuation of Therapy

Members are eligible for continuation of NPWT when ALL of the following are documented:

Continuation Criteria: A licensed medical professional has directly performed the dressing changes and is monitoring and controlling the member's underlying medical conditions; the wound demonstrates progressive and measurable improvement (exception: if the wound was debrided within the last approval period, documentation of debridement with before-and-after images is provided); and nutritional deficiencies or abnormalities have been addressed or provisions made. If no measurable month-to-month improvement occurs, approval for NPWT will be discontinued.

If no measurable improvement month-to-month, discontinue; debridement exception allowed with documentation

inv-03: Supply and Billing Rules

Supply and setting rules:

Supply Allowances: Initial outpatient approval includes NPWT equipment and supplies used upon discharge from an inpatient setting. Standard monthly allowances: ten canister sets per month (additional canister sets may be requested with documentation showing > 90 mL drainage exudate per day); fifteen dressing kits per wound per month (additional kits may be requested with documentation that wound size requires more than one kit).> 90 mL/day for extra canister sets

Initial outpatient approval period = 1 month; renewals in 1-month increments

Surgical/global billing rules: When NPWT is applied during surgery, CareSource does not reimburse it separately — it is considered included in the surgical (global) package. Outpatient NPWT after hospital discharge is covered when medically necessary.

Global surgical package bundles intraoperative NPWT; outpatient use post-discharge may be billed separately when medically necessary

In addition to the specific exclusion list, NPWT will be considered not medically necessary when documentation does not meet the policy’s required continuation or conservative-care elements. Providers should note that continuation of outpatient NPWT requires documentation that a licensed medical professional has directly performed dressing changes and is monitoring and managing underlying conditions, that measurable improvement in the wound is demonstrated month-to-month (or, if debridement occurred during the prior approval period, that debridement is documented with before/after images), and that nutritional issues have been addressed. Failure to provide these items or to show progressive, measurable improvement may result in discontinuation of coverage.

Prior Authorization, Documentation, and Provider Requirements

Prior Authorization

Prior Authorization Required

Initial outpatient NPWT approval is for 1 month. Continued approvals are granted in 1-month increments and require documentation demonstrating ongoing medical necessity as described below.

Initial approval duration: 1 month
Renewals: 1-month increments; documentation required at each renewal

Documentation Required

Required Prior Conservative Measures for Stage III/IV Pressure Ulcers

For Stage III or IV pressure ulcers, the request must include documentation that conservative measures have been ordered and that there is documented ongoing compliance. Required conservative measures include pressure relief techniques, pressure-reducing surfaces (e.g., foam overlay mattress, egg crate foam, or low-air-loss devices), and an every-2-hour turning and repositioning regimen. Incontinence and moisture management must be addressed, and for diabetic patients a comprehensive diabetic management program (including A1C and medication management) must be documented.

Evidence of ordered pressure-relief surfaces and documented ongoing use
Documentation of an every-2-hour turning/repositioning regimen
Documentation of incontinence/moisture management
For diabetic ulcers: documentation of enrollment in a diabetic management program (A1C, medication management, ongoing diabetic care)

Documentation Required

Required Documentation for Continuation

Requests for continuation of NPWT must include documentation by a licensed medical professional that all continuation criteria are met. The documentation must confirm who is performing dressing changes, the monitoring performed, and objective evidence of wound progress or justification if progress is not measurable.

Licensed medical professional has directly performed the dressing change and is monitoring/controlling underlying medical conditions
Documentation of progressive and measurable improvement in the wound (month-to-month). If no measurable improvement, approval will be discontinued unless other criteria are met
If a wound was debrided during the prior approval period, include documentation of the debridement; before-and-after images are preferred
Documentation that nutritional deficits have been addressed or provisions have been made to optimize nutrition

Denial Risk

Exclusion Conditions — Denial Risk

NPWT is not medically necessary and should be denied when absolute exclusion conditions are present. Prior authorization requests with any of the following findings should be refused and clearly documented in the medical record.

Uncontrolled soft tissue infection or osteomyelitis
Exposed nerves, blood vessels, or organs in the vicinity of the wound
Malignancy present in the wound
Open fistula to an organ or body cavity within the vicinity of the wound
Necrotic tissue with eschar that has not been debrided
Active bleeding

Key Definitions and Terms

Measurable improvement — key measurement domains and examples

Measurement domainsDrainage, inflammation/swelling, pain or tenderness, wound dimensions and surface measurements, granulation tissue, necrotic tissue/slough, tunneling or undermining.

Examples of measurable changesDecrease in daily drainage volume; reduction in wound surface area or depth; increased granulation tissue formation; reduction in undermining/tunnel length; decreased erythema or edema; less pain at dressing change.

Assessment methodsSerial wound measurements (length × width × depth), photographic documentation, drainage volume logs, and clinician notes on tissue appearance and pain scores.

Timing for evaluationMeasured month-to-month during the authorization period; lack of progressive measurable improvement may lead to discontinuation of approval.

Documentation neededProgress notes showing objective measurements and/or before-and-after images when debridement occurred within the prior approval period.

Dehisced Wound — concise definition

DefinitionA wound that has ruptured along the wound margin, typically due to infection.

Common causeLocal wound infection or failure of wound closure leading to separation of the wound edges.

Clinical notesMay require documentation of debridement and infection control prior to advanced therapies like NPWT.

Stage III pressure ulcer — definition and diagnostic features

DefinitionStage III pressure ulcer: full-thickness loss of skin with visible adipose (fat) tissue; wound edges often rolled (epibole); may have eschar or slough; undermining and tunneling may occur; no exposed fascia, muscle, tendon, ligament, cartilage, or bone.

Key diagnostic featuresVisible subcutaneous fat (adipose) without exposed deep structures; possible rolled edges, slough/eschar, undermining and tunneling.

Distinguishing pointUnlike Stage IV, deep structures (fascia, muscle, tendon, cartilage, or bone) are NOT exposed or directly palpable.

Stage IV pressure ulcer — definition and diagnostic features

DefinitionStage IV pressure ulcer: full-thickness skin and tissue loss with exposed or directly palpable fascia, muscle, tendon, ligament, cartilage, or bone; wound edges often rolled (epibole); typically with visible eschar and slough; undermining and tunneling often present.

Key diagnostic featuresExposure or direct palpation of deep structures (fascia, muscle, tendon, ligament, cartilage, or bone); frequent undermining/tunneling and slough/eschar present.

Clinical significanceRepresents the most severe pressure ulcer staging with high risk for deep infection (e.g., osteomyelitis) and often requires advanced wound care and infection control prior to NPWT.

Clinical Background

Negative Pressure Wound Therapy (NPWT) delivers subatmospheric pressure to a wound using a pump and specialized dressing to remove exudate and promote a moist environment conducive to granulation and wound closure. It is used for chronic wounds including pressure ulcers, venous or arterial insufficiency ulcers, neuropathic/diabetic foot ulcers, and certain surgical or traumatic wounds that require accelerated granulation. NPWT may be applied in the hospital, but when applied intraoperatively it is considered included in the global surgical package and is not reimbursed separately; outpatient NPWT after hospital discharge is covered when medical necessity criteria are met. Initial outpatient approval is for 1 month, with renewals granted in 1‑month increments contingent on meeting the policy’s continuation documentation and measurable improvement requirements.

OpenPayer

Negative Pressure Wound Therapy (NPWT) — Arkansas PASSE

Coverage and Medical Necessity Criteria

Prior Authorization, Documentation, and Provider Requirements

Key Definitions and Terms

Clinical Background

Policy Dates and Revision History