E0425 Stationary Oxygen System HCPCS Reimbursement | OpenPayer

Summary & Overview

HCPCS E0425: Stationary Compressed Gas Oxygen System, Purchase

HCPCS Level II code E0425 designates the purchase of a stationary compressed gas oxygen system that includes regulator, flowmeter, humidifier, nebulizer, cannula or mask, and tubing. This Durable Medical Equipment (DME) code matters nationwide because stationary oxygen systems support long-term oxygen therapy in home and residential care settings for patients with chronic respiratory conditions; accurate coding drives appropriate procurement, inventory management, and coverage decisions for payers and providers.

Key payers covered in this analysis include Aetna, Blue Cross Blue Shield, Cigna Health, UnitedHealthcare, and Medicare. Readers will find a concise overview of what E0425 represents clinically and operationally, common billing considerations, and the payer landscape relevant to claims adjudication. The publication summarizes typical sites of service and service type, outlines common modifiers and payer relationships when available, and highlights where input data is unavailable.

This national-focused summary helps clinicians, billing specialists, and policy analysts understand the core purpose of E0425, the services it encompasses, and the payer environment stakeholders commonly encounter when purchasing and supplying stationary oxygen systems for long-term patient use.

AetnaBlue Cross Blue ShieldCigna HealthUnitedHealthcareMedicareE0425HCPCS Level IIDurable Medical Equipmentstationary oxygenhome oxygenoxygen systemDME billingmedical device purchase

Billing Code Overview

HCPCS Level II code E0425 describes a stationary compressed gas oxygen system, purchase. The full description indicates the item includes regulator, flowmeter, humidifier, nebulizer, cannula or mask, and tubing, reflecting a complete home or facility oxygen delivery setup intended for patients requiring continuous or long-term supplemental oxygen.

Service Type: Durable Medical Equipment (DME) – stationary oxygen system purchase

Typical Site of Service: Home health or long-term residential settings, including private residences, long-term care facilities, and other non-acute care environments where a stationary oxygen system is installed for ongoing patient use.

Data not available in the input.

Clinical & Coding Specifications

Clinical Context

A 68-year-old patient with chronic hypoxemic respiratory failure secondary to chronic obstructive pulmonary disease (COPD) is evaluated in pulmonary clinic following hospital discharge for an acute exacerbation. The clinician determines that the patient requires long-term, stationary oxygen therapy at home. The plan of care includes the purchase of a stationary compressed gas oxygen system to provide continuous supplemental oxygen. The device delivered to the patient is a stationary compressed gas system that includes a regulator, flowmeter, humidifier, nebulizer, and appropriate cannula or mask and tubing.

The clinical workflow: the pulmonologist documents the diagnosis, oxygen need (rest or exertional), and flow rate in liters per minute; the durable medical equipment (DME) supplier verifies prescription details, orders the stationary compressed gas system under billing code E0425, arranges delivery and patient education on device use and safety, and obtains necessary prior authorization from payors when required. Follow-up visits assess oxygen saturation, device function, and ongoing medical necessity for continued stationary oxygen therapy.

Coding Specifications

Modifier	Description	When to Use
`00`	No modifier (default)	Report when no special circumstances apply.

Related Codes

HCPCS-E0112-UNDERARM-WOOD-CRUTCHES-PAIR

HCPCS E0112: Underarm Wooden Crutches, Pair, with Pads and Handgrips

HCPCS-E2402-NEGATIVE-PRESSURE-WOUND-THERAPY-PUMP

HCPCS E2402: Negative Pressure Wound Therapy Electrical Pump

HCPCS-E0232-WARMING-CARD-NON-CONTACT-WOUND-WARMING-ACCESSORY

HCPCS E0232: Warming Card for Non‑Contact Wound Warming

HCPCS-E2321-POWER-WHEELCHAIR-HAND-CONTROL-REMOTE-JOYSTICK-NONPROPORTIONAL

HCPCS E2321: Power Wheelchair Hand Control Remote Joystick, Nonproportional

HCPCS-E0273-BED-BOARD-DME-ACCESSORY

HCPCS E0273: Bed Board, DME Accessory

HCPCS-E1701-JAW-REHABILITATION-CUSHION-REPLACEMENT-PACK

HCPCS E1701: Replacement Cushions for Jaw Motion Rehabilitation System

HCPCS-E0160-PORTABLE-SITZ-BATH-EQUIPMENT

HCPCS Level II E0160: Portable Sitz-Type Bath Equipment

HCPCS-E0190-POSITIONING-CUSHION-PILLOW-WEDGE

HCPCS Level II E0190: Positioning Cushion/Pillow/Wedge

HCPCS-E0781-AMBULATORY-INFUSION-PUMP-PATIENT-WORN

HCPCS E0781: Ambulatory Infusion Pump, Patient-Worn

HCPCS-E0629-SEAT-LIFT-MECHANISM-NON-ELECTRIC

HCPCS Level II E0629: Seat Lift Mechanism, Non-Electric

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Taxonomy Code	Specialty	Notes
`2084P0800X`	Pulmonology	Pulmonologists commonly prescribe long-term oxygen therapy and document medical necessity.
`207RP1001X`	Internal Medicine	Hospitalists and internists manage chronic respiratory failure and place oxygen orders.
`363LP0800X`	Respiratory Therapy	Respiratory therapists perform device setup, patient education, and home assessments.
`3336S0124X`	Durable Medical Equipment Supplier	DME suppliers handle procurement, delivery, and billing of `E0425`.
`207Q00000X`	Family Medicine	Primary care physicians may initiate or renew oxygen prescriptions and follow ongoing need.

Related Diagnoses

ICD-10 Code	Description	Clinical Relevance
`J44.1`	Chronic obstructive pulmonary disease with (acute) exacerbation	COPD with hypoxemia frequently requires stationary oxygen at home to maintain adequate saturations.
`J96.11`	Chronic respiratory failure with hypoxia	Primary indication for long-term supplemental oxygen and stationary compressed gas systems.
`J43.9`	Emphysema, unspecified	Emphysema patients often develop chronic hypoxemia managed with home oxygen.
`I50.9`	Heart failure, unspecified	Heart failure can cause hypoxemia or contribute to dyspnea prompting oxygen therapy evaluation.
`R06.02`	Shortness of breath	Symptom prompting assessment of oxygenation and consideration for stationary oxygen system.
`E11.9`	Type 2 diabetes mellitus without complications	Common comorbidity among patients receiving home oxygen; included for comprehensive care context.

Related CPT Codes

CPT Code	Description	Relationship to This Procedure
`94640`	Pressurized or non-pressurized nebulizer therapy (e.g., for medication administration)	Often performed during clinic visits to titrate inhaled therapies while assessing oxygen requirements prior to ordering stationary oxygen.
`94760`	Noninvasive ear or pulse oximetry for oxygen saturation; single determination	Used during evaluation to document hypoxemia and justify the need for stationary oxygen `E0425`.
`94761`	Noninvasive ear or pulse oximetry for oxygen saturation; continuous overnight recording for 72 hours	Used when ambulatory or nocturnal oximetry is required to demonstrate desaturation and medical necessity for oxygen.
`94010`	Spirometry, including graphic record, total and timed vital capacity, expiratory flow rate measurement(s), with interpretation and report	Pulmonary function testing commonly performed in the assessment of chronic respiratory disease preceding oxygen therapy decisions.
`99070`	Supplies and materials (e.g., nebulizer solution), provided by the physician over and above those usually included with the office visit	Used to bill non-DME supplies or consumables related to respiratory care during visits; complementary to DME `E0425`.