A7505 HCPCS Reimbursement & Policy Benchmarks | OpenPayer

Summary & Overview

HCPCS A7505: Reusable Tracheostoma Housing for Heat and Moisture Exchange

HCPCS Level II code A7505 denotes a reusable, non-adhesive housing used with heat and moisture exchange (HME) systems and tracheostoma valves. The item supports airway humidification and filtration for patients with tracheostomies and other ventilatory needs. Nationally, durable medical equipment (DME) components like this affect respiratory care delivery, home health support, and device supply chains, with implications for clinical outcomes and billing workflows.

Key payers in the analysis include Aetna, Blue Cross Blue Shield, Cigna Health, UnitedHealthcare, and Medicare. Readers will find an overview of coverage considerations and billing context for A7505, typical service settings, and common modifiers used with HCPCS Level II claims. The publication summarizes benchmarks where available, highlights policy and billing nuances relevant to DME respiratory components, and provides clinical context for use with heat and moisture exchange systems and tracheostoma valves.

This resource is geared toward coding professionals, respiratory care clinicians, and revenue cycle staff seeking clarity on the clinical role and billing classification of reusable HME housings. Data not available in the input: specific payer policy language, reimbursement rates, related ICD-10 diagnoses, associated taxonomies, and related codes.

AetnaBlue Cross Blue ShieldCigna HealthUnitedHealthcareMedicareA7505HCPCS Level IIdurable medical equipmenttracheostomyheat and moisture exchangerespiratory carehome healthmedical device billing

Billing Code Overview

HCPCS Level II code A7505 describes housing, reusable without adhesive, for use in a heat and moisture exchange system and/or with a tracheostoma valve, each. This item is a durable medical device component that houses heat and moisture exchange elements and can be used in conjunction with tracheostomy valves to manage airway humidity and filtration.

Service type: Durable medical equipment component for respiratory care
Typical site of service: Hospital inpatient or outpatient settings, long-term care facilities, home health, and other clinical environments where tracheostomy care and respiratory humidification are managed

Clinical & Coding Specifications

Clinical Context

A 68-year-old patient with a chronic tracheostomy following prolonged mechanical ventilation presents for routine replacement of a reusable tracheostomy housing component that interfaces with a heat and moisture exchange (HME) system and/or a tracheostoma valve. The patient is managed by a multidisciplinary team including a pulmonologist, otolaryngologist, respiratory therapist, and home medical equipment supplier. The clinical workflow typically includes assessment of the tracheostoma and stoma skin, verification of HME compatibility with the patient’s tracheostomy tube and valve, education on cleaning and reuse protocols, and documentation of medical necessity for ongoing use of a reusable housing device. The supplier verifies prescription details, matches the A7505 housing to the patient’s HME or tracheostoma valve system, dispenses the device, and provides device-specific instructions and follow-up arrangements for replacement or repair.

Coding Specifications

Modifier	Description	When to Use
`NU`	New equipment	Use when the housing is furnished as new equipment to the patient for initial issue or replacement from supplier inventory.
`RR`

HCPCS A5500: Diabetic Off-the-Shelf Depth-Inlay Shoe, Custom Supply and Fitting

HCPCS-A6599-GRADIENT-COMPRESSION-BANDAGE-ROLL-SHORT-STRETCH

HCPCS A6599: Gradient Compression Bandage Roll, Inelastic Short Stretch

HCPCS-A6256-SPECIALTY-ABSORPTIVE-WOUND-DRESSING-OVER-48-SQIN

HCPCS A6256: Specialty Absorptive Sterile Wound Dressing, >48 sq in

HCPCS-A6407-PACKING-STRIPS-STERILE-WOUND-CARE

HCPCS Level II A6407: Sterile Non-Impregnated Packing Strips, Wound Care

HCPCS-A6558-THIGH-LENGTH-COMPRESSION-STOCKING-40MMHG-CUSTOM

HCPCS A6558: Gradient Thigh-Length Compression Stocking, Custom, ≥40 mmHg

HCPCS-A4639-REPLACEMENT-INFRARED-HEATING-PAD

HCPCS A4639: Replacement Pad for Infrared Heating Pad System, Each

HCPCS-A6585-ABOVE-KNEE-GRADIENT-COMPRESSION-WRAP

HCPCS A6585: Above‑Knee Gradient Compression Wrap with Adjustable Straps

HCPCS-A6590-EXTERNAL-URINARY-CATHETER-DISPOSABLE-WICKING-SUCTION

HCPCS A6590: Disposable External Urinary Catheter with Wicking for Suction

HCPCS-A6604-GRADIENT-COMPRESSION-FOAM-SHEET

HCPCS A6604: Gradient Compression Foam Sheet, 250 cm²

HCPCS-A4929-TOURNIQUET-DIALYSIS-SUPPLY

HCPCS Level II A4929: Tourniquet for Dialysis, Each

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Taxonomy Code	Specialty	Notes
`207RP0000X`	Pulmonology	Manages chronic airway disorders and long-term tracheostomy care.
`207L00000X`	Otolaryngology (ENT)	Performs tracheostomy procedures and stoma surgical care.
`335100000X`	Respiratory Therapy	Performs device fitting, HME selection, and patient education.
`3336C0004X`	Durable Medical Equipment Supplier	Dispenses and manages durable medical equipment including reusable housings.
`207Q00000X`	Critical Care Medicine	Manages patients with prolonged ventilation and complex airway needs.

Related Diagnoses

ICD-10 Code	Description	Clinical Relevance
`J95.1`	Tracheostomy malfunction	Indicates problems with tracheostomy devices or interfaces that may prompt replacement of a reusable housing.
`Z93.0`	Tracheostomy status	Documents the presence of a tracheostomy and is directly relevant for billing durable medical equipment such as `A7505`.
`J96.00`	Acute respiratory failure, unspecified whether with hypoxia or hypercapnia	Patients with respiratory failure may require tracheostomy and long-term HME use.
`J44.9`	Chronic obstructive pulmonary disease, unspecified	COPD patients may have chronic airway management needs including tracheostomy and HME systems.
`G47.33`	Obstructive sleep apnea (adult)	Selected patients with complex airway management may have tracheostomy and require HME-compatible housings.
`Z99.11`	Dependence on respirator [ventilator] status	Long-term ventilator-dependent patients commonly use tracheostomy interfaces and HME housings.
`K38.4`	Stomal complications of intestinal stoma — (Note: not tracheostoma-specific)	Data not applicable; excluded from relevance — however primary stoma-related codes for tracheostoma include `Z93.0` and `J95.1`.
`R04.2`	Hemoptysis	When present, may require device assessment or replacement due to soiling or malfunction of tracheostoma interfaces.

Related CPT Codes

CPT Code	Description	Relationship to This Procedure
`31500`	Intubation, endotracheal, emergency procedure	Performed prior to tracheostomy in acute airway management; may precede long-term tracheostomy and need for an HME housing.
`31600`	Tracheostomy, planned; emergent or temporary	Surgical creation of a tracheostoma; establishes the airway that will later utilize an HME housing such as `A7505`.
`31502`	Tracheostomy, planned, initial insertion of tracheostomy tube	Codes the initial tracheostomy tube insertion; device housings are adjunct durable medical equipment used afterward.
`94640`	Pressurized or nonpressurized inhalation treatment for acute airway obstruction	Respiratory therapy procedures that commonly occur in the same clinical setting and may relate to ongoing stoma management and HME use.
`94620`	Pulmonary stress testing and respiratory therapy evaluation, initial	Respiratory evaluations performed by therapists to assess HME suitability and patient conditioning for decannulation or valve use.

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