E1405 Oxygen & Heated Delivery Reimbursement | OpenPayer

Summary & Overview

HCPCS E1405: Oxygen and Water Vapor Enriching System with Heated Delivery

HCPCS Level II code E1405 denotes an oxygen and water vapor enriching system with heated delivery, a type of durable medical equipment used to provide humidified, heated oxygen therapy. This equipment can improve patient comfort and reduce mucosal drying for individuals requiring long-term or continuous oxygen support, making it relevant across home health and outpatient respiratory management.

Key payers included in this analysis are Aetna, Blue Cross Blue Shield, Cigna Health, UnitedHealthcare, and Medicare. Readers will find a concise national overview of clinical context, coverage considerations, and common billing practices tied to this equipment category. The publication outlines typical sites of service and the service type associated with E1405, summarizes how major payers approach coverage and reimbursement for comparable oxygen delivery systems, and highlights benchmarking and policy themes that affect access to heated, humidified oxygen systems.

The piece provides practical reference material for billing staff, respiratory therapists, and policy analysts seeking clarity on classification and positioning of this equipment in claims workflows. Data not available in the input is noted where applicable.

AetnaBlue Cross Blue ShieldCigna HealthUnitedHealthcareMedicareE1405HCPCS Level IIoxygen therapyhumidificationdurable medical equipmenthome healthmedical gas deliveryheated delivery

Billing Code Overview

HCPCS Level II code E1405 describes an oxygen and water vapor enriching system with heated delivery. This code represents durable medical equipment designed to provide enriched oxygen therapy with humidification and heated delivery components to reduce airway drying and improve patient comfort.

Service type: Medical gas delivery system for oxygen therapy with integrated humidification and heated delivery
Typical site of service: Home health and other outpatient settings where long-term or chronic oxygen therapy is administered

Clinical & Coding Specifications

Clinical Context

A typical patient is an adult with chronic hypoxemic respiratory failure due to advanced chronic obstructive pulmonary disease (COPD) or interstitial lung disease who requires long-term ambulatory oxygen therapy with humidification and heated delivery to prevent mucosal drying and improve tolerance. The patient is evaluated in a pulmonary clinic after hospitalization for acute on chronic respiratory failure; arterial blood gas or pulse oximetry demonstrates resting SpO2 ≤88% on room air and the clinician prescribes an oxygen delivery system with heated humidification for home use. The clinical workflow includes physician assessment and documentation of oxygen need, selection of an appropriate device coded as E1405 (oxygen and water vapor enriching system with heated delivery), ordering by durable medical equipment (DME) supplier, setup and patient education in the home or clinic by a respiratory therapist or DME technician, verification of device functionality, and periodic follow-up with the prescriber for ongoing oxygen requirement and claims documentation. Home delivery, device training, and supply management are coordinated with the patient’s durable medical equipment supplier and billed to the patient’s insurer following payer coverage policies.

Coding Specifications

Modifier	Description	When to Use
`22`	Increased procedural services	Use when significantly greater work is required for device setup, customization, or complex patient education beyond typical service.

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Taxonomy Code	Specialty	Notes
261QM0800X	Pulmonology	Pulmonologists prescribe and manage home oxygen therapy and device selection.
207RG0300X	Respiratory Therapy	Respiratory therapists perform device setup, patient education, and home assessments.
193200000X	Family Medicine	Primary care physicians often initiate oxygen prescriptions and coordinate DME orders.
207L00000X	Critical Care Medicine	Intensivists may prescribe heated oxygen systems during discharge planning for chronic respiratory failure.
363LA2200X	Durable Medical Equipment Supplier	DME providers supply, maintain, and bill for `E1405` equipment.

Related Diagnoses

ICD-10 Code	Description	Clinical Relevance
`J44.9`	Chronic obstructive pulmonary disease, unspecified	COPD with chronic hypoxemia commonly requires ambulatory oxygen with heated humidification to improve tolerance.
`J96.11`	Chronic respiratory failure with (acute) exacerbation, hypoxia	Patients with chronic hypoxic respiratory failure often need continuous or nocturnal oxygen therapy using systems like `E1405`.
`J84.10`	Pulmonary fibrosis, unspecified	Interstitial lung disease causing progressive hypoxemia may necessitate humidified heated oxygen delivery.
`E88.01`	Chronic respiratory acidosis	Chronic ventilatory insufficiency with CO2 retention may coexist with hypoxemia requiring supplemental heated oxygen.
`I50.9`	Heart failure, unspecified	Heart failure patients with secondary hypoxemia may receive home oxygen therapy to relieve symptoms.
`R06.02`	Shortness of breath, acute	Acute exacerbations in chronic lung disease leading to oxygen prescription and device provision.
`Z99.81`	Dependence on supplemental oxygen	Used to indicate chronic need for supplemental oxygen in claims and durable medical equipment documentation.

Related CPT Codes

CPT Code	Description	Relationship to This Procedure
`99214`	Office or other outpatient visit for the evaluation and management of an established patient, moderate complexity	Used for clinician evaluation and documentation supporting the need for home oxygen and the `E1405` order.
`94640`	Pressurized or non-pressurized inhalation treatment for acute airway obstruction; nebulized administration of medication (e.g., aerosolized bronchodilator)	May be performed during clinic visits when optimizing oxygen delivery and assessing response to therapy.
`94760`	Noninvasive ear or pulse oximetry for oxygen saturation; single determination	Used to document oxygenation status in clinic to justify `E1405` prescription.
`94002`	Ventilation assist and management, initiation of bi-level pressure or ventilator support, hospital inpatient/observation care	Relevant when patients transitioning from ventilatory support require heated oxygen delivery systems at discharge.
`99070`	Supplies and materials (eg, splints, casts, devices), provided by the physician over and above those usually included with the office visit	May be used for miscellaneous supplies tied to device education or short-term supplies not included in DME billing.

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