HCPCS K0870: Power Wheelchair, Heavy Duty, 301–450 lb

HCPCS Level II code K0870 denotes a group 4 heavy-duty power wheelchair with a sling or solid seat/back and a patient weight capacity of 301 to 450 pounds. As a durable medical equipment (DME) item, this code captures devices intended for patients who need higher-weight-capacity power mobility to maintain independence and mobility in home and community settings. Nationally, heavy-duty power wheelchairs represent a clinically significant segment of mobility device utilization due to aging populations and increasing prevalence of mobility-limiting conditions.

Key payers referenced in this overview include Aetna, Blue Cross Blue Shield, Cigna Health, UnitedHealthcare, and Medicare. Readers will find benchmarks and coverage context for K0870, including how the code maps to service type and typical sites of service, common modifier applicability noted in administrative guidance, and clinical context for why a heavy-duty power wheelchair may be indicated. The publication outlines payer coverage patterns, authorization considerations, and coding-based documentation expectations where available. The summary presents national-level context rather than state-specific policy and highlights areas where input data was not provided.

Billing Code Overview

HCPCS Level II code K0870 describes a power wheelchair, group 4 heavy duty, sling/solid seat/back with a patient weight capacity of 301 to 450 pounds. This item represents a durable medical equipment supply intended for patients who require a heavy-duty power mobility device to support higher weight capacities and more demanding functional needs.

Service type: Durable Medical Equipment — Power Mobility Device

Typical site of service: Durable medical equipment provided for use in the home or community setting; fitting and delivery may occur in outpatient clinics or specialized mobility centers.

Clinical Context

A typical patient is a 67-year-old male with severe mobility impairment from long-standing peripheral neuropathy and deconditioning, body weight 340 pounds, who requires a Group 4 power wheelchair with heavy-duty frame and a sling/solid seat/back rated for 301–450 pounds (K0870). The clinical workflow begins with a primary care or physiatry evaluation documenting functional limitations in community ambulation, transfers, and activities of daily living despite conservative therapies. A comprehensive mobility assessment by a licensed therapist (occupational or physical therapist) documents the need for a power wheelchair to improve safety and independence, includes measurements for seat size and weight capacity, and trialing of power wheelchair features. Durable medical equipment (DME) supplier performs a face-to-face visit if required, orders the K0870 power wheelchair, and coordinates delivery, seating setup, and training. Post-delivery, the therapist documents functional gains and ongoing need for the heavy-duty power wheelchair in the medical record for payer review and durable medical equipment audit purposes.

Coding Specifications

Modifier	Description	When to Use
`22`	Increased procedural services	Use when documentation supports substantially greater work or complexity for customization, complex seating or extensive setup beyond usual for the wheelchair order

Taxonomy Code	Specialty	Notes
`208VP0200X`	Physical Medicine & Rehabilitation (Physiatry)	Common prescriber for mobility evaluations and DME medical necessity documentation
`3336P2300X`	Occupational Therapy	Therapist performing seating assessment and ADL-focused mobility evaluation
`310400000X`	Physical Therapist	Performs mobility and gait assessments and wheelchair training
`332B00000X`	Assistive Technology Supplier	DME supplier specialty for durable medical equipment provision and setup
`261QA1900X`	Orthotics & Prosthetics	Specialist for custom seating components and heavy-duty frame modifications

Related Diagnoses

ICD-10 Code	Description	Clinical Relevance
`G62.9`	Polyneuropathy, unspecified	Peripheral neuropathy causing gait instability and weakness requiring power mobility
`M62.81`	Muscle weakness (generalized)	Muscle weakness limiting ambulation and necessitating a power wheelchair with higher weight capacity
`G12.21`	Amyotrophic lateral sclerosis (ALS)	Progressive neuromuscular disease often requiring power mobility and heavy-duty seating
`G35`	Multiple sclerosis	Neurologic impairment with mobility decline where a Group 4 power wheelchair supports community participation
`I69.391`	Sequelae of cerebral infarction affecting mobility	Post-stroke deficits causing need for power wheelchair for safe mobility
`M16.11`	Unilateral primary osteoarthritis, right hip	Severe joint disease causing inability to ambulate long distances, leading to power wheelchair need
`R26.2`	Difficulty in walking, not elsewhere classified	Functional diagnosis commonly used to support mobility device provision
`Z99.3`	Dependence on wheelchair	Indicates ongoing need and dependency on wheelchair mobility support

Related CPT Codes

CPT Code	Description	Relationship to This Procedure
`97542`	Wheelchair management: assessment, fitting and training	Directly related — therapist assessment, wheelchair configuration and patient training prior to or during delivery of `K0870`
`97161`	Physical therapy evaluation, low complexity	Initial PT evaluation that may document functional limitations and support medical necessity for power mobility
`97165`	Occupational therapy evaluation, high complexity	OT evaluation for complex seating and ADL needs supporting a Group 4 power wheelchair request
`99456`	Work-related and medical disability examinations	Used when mobility needs are documented in the context of functional capacity for disability/work status related to the wheelchair need
`99070`	Supplies and materials (DME)	Used by suppliers for non-covered items, accessories, or special shipping associated with heavy-duty wheelchair components

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Summary & Overview