CurrentPremera BluecrossPolicy 7.01.174

Stationary Ultrasonic Diathermy Devices

Policy governs coverage of portable/wearable stationary ultrasonic diathermy devices used to treat musculoskeletal pain and who may be affected (providers and members). It states the payer's coverage stance and related coding.

Policy Summary

PayerPremera Bluecross

PolicyStationary Ultrasonic Diathermy Devices

Policy CodePolicy 7.01.174

Change TypeNo material changes

Effective DateApr 1, 2026

Next Review DateApr 1, 2026

Key ActionPrior authorization requests for HCPCS K1004 and K1036 will be evaluated under this investigational policy stance; include HCPCS K1004 and K1036 on claims when billing and document device model and treatment area.

SourceLink

POLICY UPDATE CHANGES

No material clinical or coverage changes in this revision.

InvestigationalCoverage stance

K1004, K1036HCPCS codes

510(k) clearedFDA status

Meta-analysis + RCTsEvidence

NoneMedicare NCD

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Investigational/Not covered for musculoskeletal pain

Coverage determination:

Primary stance: Stationary ultrasonic diathermy devices for treatment of musculoskeletal pain are considered investigational.

Policy conclusion based on available evidence including a meta-analysis and randomized controlled trials that are insufficient to demonstrate net health benefit.

Individuals with certain medical conditions may not be appropriate candidates for ultrasonic diathermy. Contraindications and exclusions include presence of an implanted medical device (e.g., pacemaker, deep brain stimulation device), a healing fracture in the area to be treated, or a malignancy in the area to be treated. Pregnancy is also listed as an exclusion. Document these conditions when evaluating a member for device use.

Use of stationary ultrasonic diathermy devices to treat musculoskeletal pain is considered investigational by the payer and is therefore not medically necessary under this policy. Coverage requests for these devices will be denied on the basis that available evidence is insufficient to demonstrate a net health benefit.

Provider Requirements and Billing Guidance

Prior Authorization

Prior Authorization Required

Prior authorization is required for requests involving ultrasonic diathermy devices billed with HCPCS codes K1004 and K1036. Coverage for these devices is governed by this policy, which designates ultrasonic diathermy for musculoskeletal pain as investigational and not covered. Submit a prior authorization request that includes clinical documentation demonstrating medical necessity and any relevant prior treatments.

HCPCS K1004 — Low frequency ultrasonic diathermy treatment device for home use
HCPCS K1036 — Supplies and accessories for low frequency ultrasonic diathermy, per month

Documentation Required

Billing and Documentation Requirements

Include the HCPCS codes K1004 and K1036 on all claims for ultrasonic diathermy devices and related supplies. Documentation submitted with the claim and/or prior authorization must clearly state the device used, indication, treatment setting (including if used as part of a comprehensive pain management program), duration/frequency of use, and contemporaneous clinical notes supporting medical necessity. Retain records of device model/manufacturer and FDA 510(k) clearance where applicable.

List HCPCS codes K1004 and/or K1036 on the claim
Document device model, manufacturer, and intended use
Provide clinical rationale, treatment plan, and prior conservative therapies tried
If part of a pain management program, document program enrollment and components

Background and Evidence Summary

Ultrasonic diathermy (therapeutic ultrasound) delivers acoustic vibrations at frequencies ≥20 kilohertz to targeted tissues, producing localized heating in collagen-rich structures such as muscles, tendons, and ligaments. The therapeutic intent is to simulate soft tissue injury repair and provide pain relief by increasing tissue vibration and heat. Traditionally, therapeutic ultrasound is applied in clinic using a wand for short sessions (typically 5–10 minutes) with a coupling gel; newer stationary, portable/wearable devices provide prolonged, low-intensity continuous ultrasound for home use over several hours.

Definitions

inv-10: Stationary ultrasonic diathermy devices — portable/wearable devices that deliver continuous low-intensity therapeutic ultrasound; description and scope

Device typePortable/wearable stationary ultrasonic diathermy devices (also referred to as sustained acoustic medicine) that can be self-applied at home.

Mechanism of applicationElectrodes attached to adhesive bandages are applied to the skin over the desired treatment area; device delivers continuous low‑intensity therapeutic ultrasound for several hours.

Intended effectGenerate deep heat within body tissues (collagen‑rich tissues such as muscles, tendons, ligaments) to alleviate pain, muscle spasms, and joint contractures.

Treatment settingDesigned for home use (self‑applied) rather than short in‑clinic wand sessions; provides prolonged low‑intensity exposure compared with conventional clinic treatments.

Typical delivery durationContinuous low‑intensity ultrasound delivered for several hours per treatment application.

inv-11: Therapeutic ultrasound / ultrasonic diathermy — definition of noninvasive acoustic vibrations (≥20 kHz) and clinical delivery modes

DefinitionTherapeutic ultrasound (ultrasonic diathermy) is a noninvasive method that produces acoustic vibrations of high frequency (≥20 kilohertz) applied to tissues to generate targeted heat.

Clinical delivery modesConventionally delivered in clinic via a wand for short sessions (approximately 5–10 minutes) using gel and circular movements; newer stationary devices deliver prolonged low‑intensity ultrasound for home use.

Target tissuesTissues high in collagen such as muscles, tendons, and ligaments where increased vibration and heat are intended to promote soft tissue repair and pain relief.

Safety considerationsIndividuals with implanted metal devices (e.g., pacemakers, prostheses, intrauterine devices) and those with certain conditions (eg, cancer) may be at risk and may be inappropriate candidates for diathermy.

Policy Revision History

2026-04-01Effective dateLatest

Policy effective date established for coverage stance: stationary ultrasonic diathermy devices are investigational for musculoskeletal pain.

2026-03-09Last review

Clinical review completed; evidence reviewed including meta-analysis and randomized trials supporting investigational determination.