S8186 Swivel Adapter HCPCS: Reimbursement & Policy

HCPCS Level II code S8186 represents a swivel adapter, a durable medical equipment accessory that provides rotational articulation between connected device components. As an equipment accessory code, S8186 is relevant to clinicians, billing professionals, and DME suppliers because accurate coding affects item classification, claims processing, and patient access to needed device components nationally. Key payers commonly involved in reimbursement decisions for this code include Aetna, Blue Cross Blue Shield, Cigna Health, UnitedHealthcare, and Medicare. This publication offers a concise reference to the clinical context and billing considerations for S8186. Readers will find: a clear description of the device and typical sites of service; an outline of common payer coverage patterns and the payers analyzed; and guidance on where to look for policy updates and claim adjudication rules. The document includes benchmark and policy summary sections when available and flags areas where input data was not provided. This resource is intended to help revenue cycle staff, compliance teams, and procurement managers understand the role of S8186 in claims and supply chains at a national level.

Billing Code Overview

HCPCS Level II code S8186 describes a swivel adapter. This item is an accessory medical device used to provide rotational movement or articulation between connected components, commonly employed with mobility, respiratory, or other durable medical equipment assemblies.

Service type: Durable medical equipment accessory
Typical site of service: Use is most common in outpatient settings, home health, long-term care facilities, and other non-acute care environments where durable medical equipment is used.

Clinical Context

A swivel adapter (S8186) is a small durable medical equipment accessory used to provide rotational movement between two connected components of a mobility device or respiratory/tubing system. A typical patient scenario involves an adult or pediatric patient who uses a hospital bed, wheelchair, walker, or a long-term oxygen tubing system where a fixed connection causes kinking, twisting, or discomfort.

Example workflow: A home health clinician or durable medical equipment (DME) supplier assesses a patient who reports frequent tubing kinks or difficulty repositioning a wheelchair accessory. The clinician documents the need for a swivel adapter to reduce tubing strain and improve range of motion. The DME supplier orders and bills S8186 for delivery and fitting in the patient’s home or an outpatient clinic. The supplier documents product description, fit testing, date of delivery, patient signature, and clinical justification tied to the underlying diagnosis (for example, oxygen-dependent respiratory failure requiring untethered tubing movement or mobility device adjustments to prevent skin breakdown).

Coding Specifications

Modifier	Description	When to Use
`00`	No modifier appended	Use when no special circumstance applies

Taxonomy Code	Specialty	Notes
334100000X	Physical Therapist	Fits mobility accessories and assesses impact on function
332B00000X	Respiratory Therapist	Assesses swivel adapters used with oxygen or tubing systems
221K00000X	Occupational Therapist	Evaluates activities of daily living and need for adapter to prevent skin breakdown or caregiver strain
221Q00000X	Assistive Technology Provider	Specializes in selection and customization of mobility device components
333600000X	Durable Medical Equipment Supplier	Provides, fits, and documents delivery of DME accessories

Related Diagnoses

ICD-10 Code	Description	Clinical Relevance
`J96.11`	Chronic respiratory failure with hypoxia	Swivel adapter used with oxygen tubing to prevent kinking and allow mobility during oxygen therapy
`Z99.81`	Dependence on supplemental oxygen	Adapter facilitates tubing management for patients dependent on oxygen concentrators or portable cylinders
`R26.2`	Difficulty in walking, not elsewhere classified	Adapter used with mobility device components to improve ambulation mechanics and reduce twisting
`M25.50`	Pain in unspecified joint	Adapter may be used to adjust seating or mobility accessories to reduce joint stress during ambulation or transfers
`L89.90`	Pressure ulcer, unspecified stage, unspecified site	Adapter adjustments can reduce shear and friction forces contributing to pressure injury risk when repositioning equipment is needed

Related CPT Codes

CPT Code	Description	Relationship to This Procedure
`97760`	Orthotic(s) management and training, initial encounter, each 15 minutes	Used when fitting or training a patient/caregiver on use of a swivel adapter as part of a mobility or orthotic system
`97535`	Self-care/home management training (e.g., activities of daily living)	Applied when occupational therapy includes instruction on safe use and repositioning enabled by the swivel adapter
`E1399`	Unlisted DME supply code (for reference billing when specific code not accepted)	Used only when payer requires an alternate supply code if `S8186` is not covered; supplier documents item description and pricing
`99070`	Supplies and materials (e.g., DME) provided by the physician over and above those usually included in the office visit	Used in facility or clinic settings when the swivel adapter is furnished directly by the treating clinician during a visit
`A9270`	Non-covered item or service; not generally billable to Medicare (use per payer rules)	Sometimes used by payers for non-covered accessory items when reporting to secondary payers or patient billing contexts

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Summary & Overview

HCPCS Level II S8186: Swivel Adapter