CurrentUnitedHealthcarePolicy CS159TN.L

Pediatric Gait Trainers and Standing Systems (for Tennessee Only) – Community Plan Medical Policy

Defines medical necessity criteria for pediatric gait trainers and stationary/mobile/active standing systems for Tennessee Medicaid and CoverKids populations (age ≤18), lists applicable HCPCS codes, provides clinical rationale and evidence, and references state rules.

Policy Summary

PayerUnitedHealthcare

PolicyPediatric Gait Trainers and Standing Systems (for Tennessee Only) – Community Plan Medical Policy

Policy CodePolicy CS159TN.L

Change TypeRevised (definitions removed; supporting sections updated)

Effective DateJun 1, 2025

Next Review Date

Key ActionDocument that the individual is ≤18 years old and the specific indication in the medical record; include a physician-directed written treatment plan when required.

SourceLink

POLICY UPDATE CHANGES

Removed definitions for 'Gait Trainer' and 'Standing System' and updated Description of Services, Clinical Evidence, and References to reflect current information.

≤18Age limit for covered pediatric devices

7Listed HCPCS codes referenced

TennCareTennessee Medicaid scope

Coverage Summary

Medical-Necessity Criteria

Gait trainers for Functional Ambulation - Medically Necessary

Covered when ALL of the following are met:

ALL of the following

Individual is 18 years of age or younger
Individual has the potential for Functional Ambulation
Documentation shows assistive devices have not been effective
i.e., gait trainer used when other assistive devices ineffective

ref": "b1_0

title": "Gait trainers for Functional Ambulation - Medically Necessary

Gait trainers for Therapeutic Ambulation - Medically Necessary

Covered when ALL of the following are met for treating non-ambulatory individuals:

ALL of the following

Individual is 18 years of age or younger
Individual is capable of utilizing and tolerating the equipment safely
Individual requires moderate to maximum support for ambulation (i.e., handheld ambulation assist devices are not feasible)
Individual has an acquired injury (e.g., spinal cord or traumatic brain injury) or a chronic physical limitation that affects the ability to ambulate (e.g., cerebral palsy, neuromuscular disease, or spina bifida)
There is a physician-directed written treatment plan (including frequency and duration)

TennCare Medicaid - Stationary, Mobile, and Active Standing Systems - Medically Necessary

Stationary, mobile, and active standing systems are proven and medically necessary for treating non-ambulatory individuals when ALL of the following criteria are met:

ALL of the following

Goal of prevention of one or more of the following medical complications
- Decubitus ulcer: need for off-loading of a decubitus ulcer which cannot be accomplished by other means
- Osteoporosis: improvement or stabilization of bone density cannot be achieved with other treatment or activities
- Contracture development: high potential for progressive contracture formation including but not limited to postoperative release of contractures
- Compromised bowel/bladder function: demonstration of incomplete emptying of bladder or constipation refractory to other medical treatment

Applicable HCPCS Codes

Applicable HCPCS codes (reference list)HCPCS

E0637	Combination sit-to-stand frame/table system, any size including pediatric, with seat lift feature, with or without wheels
E0638	Standing frame/table system, one position (e.g., upright, supine or prone stander), any size including pediatric, with or without wheels
E0641	Standing frame/table system, multi-position (e.g., 3-way stander), any size including pediatric, with or without wheels
E0642	Standing frame/table system, mobile (dynamic stander), any size including pediatric
E8000	Gait trainer, pediatric size, posterior support, includes all accessories and components
E8001	Gait trainer, pediatric size, upright support, includes all accessories and components
E8002	Gait trainer, pediatric size, anterior support, includes all accessories and components

Provider Actions & Documentation Requirements

Documentation Required

Age and clinical indication documentation

Document that the individual is ≤18 years old and the specific indication (potential for functional ambulation or non-ambulatory therapeutic need) in the medical record; include physician-directed written treatment plan when required.

Prior Authorization

Physical therapy evaluation and trial for standing systems

For standing systems under TennCare Medicaid, require documentation of a physical therapy evaluation with a trial using the standing device demonstrating compliance, tolerance, and potential for clinical benefit, and a written plan of care.

Documentation Required

Demonstrate failure of alternate treatments/devices

Document that current medical device/equipment or alternate medical treatments cannot accomplish the prevention goals (e.g., off-loading ulcers, improving bone density, preventing contractures, improving bowel/bladder or pulmonary function, preventing hip dislocation).

Background, Evidence, and Definitions

Background — device types: A gait trainer is a device that unweights an individual using a rigid or flexible seat, stabilizes or supports the trunk and pelvis with lateral and posterior components, and assists with ambulation. A supported standing system secures an individual in a standing position and facilitates movement from horizontal or sitting to standing (examples: tilt table, standing frame).

Device characteristics: Standing systems may be static (not intended to move while the individual is standing, e.g., tilt table or standing frame) or dynamic (moveable by the individual or caregiver while in standing, e.g., manual standing wheelchair or power wheelchair with a standing system). Standing devices may be mechanical (non-powered) or electric/powered. Power standing systems integrated into power wheelchairs are specifically referenced.

Clinical rationale for pediatric use: Supported standing and gait trainers are used in children who are non-ambulatory or have limited ambulation to promote/maintain mobility-related outcomes (improvements in gait parameters, bone mineral density, range of motion, hip biomechanics, spasticity, participation, and other activity outcomes) and to prevent medical complications associated with prolonged non-standing.

FDA/device classification (informational): Gait trainers are described as Class I devices and exempt from 510(k) marketing requirements; standing-system product categories listed include Class I device classifications for certain categories (informational only).

Evidence summary: Multiple systematic reviews and randomized trials are cited supporting benefits of gait training and supported standing in pediatric populations. Key references include Qian et al. (2023) (systematic review and network meta-analysis of gait training interventions, 20 RCTs, n=516), Chiu et al. (2020) (Cochrane review of mechanically assisted walking in children with cerebral palsy, 17 studies, n=451), Valenzuela-Aedo et al. (2024) (systematic review of assisted standing on bone mineral density in children with cerebral palsy), Paleg and Livingstone (2015a) (systematic review of gait trainer use in home and school settings), and Freeman et al. (2019) (multi-center RCT of a home-based standing frame program in progressive MS).

Reported outcomes: These studies report improvements in gait velocity, gross motor function measures (GMFM), walking performance, bone mineral density (femur and spine), range of motion, and some activity/participation measures depending on study design and population.

Limitations: The evidence base has notable limitations including small sample sizes, heterogeneous participant samples and standing/gait protocols, variable dosing and duration, risk of bias (lack of blinding, missing data), and a paucity of high-quality pediatric dosing studies — all of which limit the strength and generalizability of conclusions and indicate need for larger, higher-quality trials.

Term	Definition
Functional Ambulation	The ability to walk, with or without the aid of appropriate assistive devices (such as prostheses, orthoses, canes, or walkers), safely and sufficiently to carry out mobility-related activities of daily living (Lam et al., 2008).

Policy Summary

PayerUnitedHealthcare

PolicyPediatric Gait Trainers and Standing Systems (for Tennessee Only) – Community Plan Medical Policy

Policy CodePolicy CS159TN.L

Change TypeRevised (definitions removed; supporting sections updated)

Effective DateJun 1, 2025

Next Review Date

Key ActionDocument that the individual is ≤18 years old and the specific indication in the medical record; include a physician-directed written treatment plan when required.

SourceLink

On This Page

OpenPayer

Pediatric Gait Trainers and Standing Systems (for Tennessee Only) – Community Plan Medical Policy

Coverage Summary

Medical-Necessity Criteria

Applicable HCPCS Codes

Provider Actions & Documentation Requirements

Background, Evidence, and Definitions

Revision History