Summary & Overview

HCPCS E1357: Oxygen Battery Charger for Portable Concentrator, Replacement Only

HCPCS Level II code E1357 identifies a replacement battery charger for portable oxygen concentrators. This durable medical equipment accessory supports ambulatory oxygen users by enabling recharging of concentrator batteries and sustaining mobility and continuous oxygen therapy. Nationally, replacement parts like this affect home health logistics, patient safety, and durable medical equipment supply chains.

Key payers in this analysis include Aetna, Blue Cross Blue Shield, Cigna Health, UnitedHealthcare, and Medicare. Readers will find a concise overview of clinical context for portable oxygen concentrators, the role of replacement accessories in outpatient and home settings, and what payers typically consider when covering replacement durable medical equipment components. The publication outlines common billing considerations, typical sites of service, and the operational importance of replacement accessories for continuity of care. It also highlights where data is unavailable and directs readers to payer policy sources for specific coverage criteria.

This summary is intended for clinicians, billing professionals, and policy analysts seeking a national-level briefing on billing and clinical context for E1357. Data not available in the input includes specific payer coverage policies, reimbursement rates, and associated ICD-10 diagnoses.

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Billing Code Overview

HCPCS Level II code E1357 describes an oxygen accessory: battery charger for a portable concentrator, replacement only, each. This item represents a replacement power accessory designed to recharge batteries used with portable oxygen concentrators, supporting ambulatory and home oxygen therapy.

Service Type: Durable medical equipment accessory — replacement part

Typical Site of Service: Patient home or other outpatient settings where portable oxygen concentrators are used

Clinical & Coding Specifications

Clinical Context

A realistic scenario involves an adult patient who uses a portable oxygen concentrator for chronic hypoxemic respiratory failure related to chronic obstructive pulmonary disease (COPD). The patient presents to durable medical equipment (DME) provider for replacement of a lost or nonfunctional battery charger for the portable concentrator. The clinical workflow: the patient or caregiver contacts the DME supplier, supplies the device model and serial number, and documents the prescription for home oxygen equipment from the treating physician. The DME supplier verifies medical necessity, verifies insurance coverage and beneficiary eligibility, documents the device replacement reason (lost, damaged, or malfunctioning), dispenses the replacement battery charger (E1357) and records delivery, device information, and patient acknowledgement in the patient record. Billing uses the HCPCS Level II code E1357 as a replacement-only accessory charge; supplier includes applicable modifier(s) per payer rules and submits supporting documentation when requested.

Coding Specifications

Modifier	Description	When to Use
`NU`	New equipment	Use when the battery charger is a new, replacement accessory provided as standard new equipment under the supplier's inventory.
`RR`	Rental equipment	Use when the portable concentrator and its accessories are being billed as a rental arrangement and the charger is part of the rented item or replacement for rented equipment.
`KX`	Requirements specified in the medical policy are met	Use when payer medical necessity documentation requirements for oxygen equipment/accessories are met and the supplier needs to indicate compliance.
`QK`	Medical direction of 2-3 concurrent anesthesia cases (limited use)	Not typically applicable; included if payer system requires code listing—rare for this supply.
`QX`	CRNA service with medical direction by a physician	Not typically applicable; rare for this supply billing but included among available modifiers.
`QY`	Medical direction of one CRNA by an anesthesiologist	Not typically applicable to DME supply billing.
`UE`	Used durable medical equipment	Use when the replacement charger is refitted or remanufactured used equipment allowed by payer rules.
`MS`	Documentation supporting Medicare assignment of certain DMEPOS claims (supplier-specific)	Use when specific supplier attestations or documentation are required by the payer for DMEPOS items.
`CO`	Routine maintenance and servicing of prosthetic/orthotic devices (payer-specific)	Use when payer classifies replacement accessory as maintenance/repair rather than new supply; less common for `E1357` but applicable in repair contexts.
`FX`	Modifier used for workers' compensation carriers to indicate primary payer	Use when billing relates to a workers' compensation claim and the charger costs are considered under that payer.

Taxonomy Code	Specialty	Notes
282N00000X	Durable Medical Equipment & Medical Supplies	Primary suppliers and DME companies that dispense oxygen accessories.
207RG0300X	Pulmonology	Physicians prescribing home oxygen and overseeing long-term oxygen therapy.
207L00000X	Internal Medicine	Primary care physicians managing chronic lung disease and oxygen prescriptions.
207U00000X	Critical Care Medicine	Intensivists who may authorize discharge equipment for patients requiring portable oxygen support.
3336S0003X	Respiratory Therapy Services	Respiratory therapists involved in device selection, education, and fitting of portable oxygen systems.

Related Diagnoses

ICD-10 Code	Description	Clinical Relevance
`J44.9`	Chronic obstructive pulmonary disease, unspecified	COPD is a leading indication for long-term oxygen therapy and portable concentrator use; patients often require replacement accessories like battery chargers.
`J96.11`	Acute on chronic respiratory failure with hypoxia	Patients with chronic respiratory failure who use portable oxygen concentrators may require accessory replacements to maintain continuous oxygen therapy.
`J81.0`	Acute pulmonary edema	Episodes leading to supplemental oxygen use and need for portable oxygen support during recovery or discharge.
`I27.2`	Other secondary pulmonary hypertension	Chronic hypoxemia from pulmonary hypertension may necessitate home oxygen therapy and associated accessories.
`R09.02`	Hypoxemia	Direct indication for oxygen supplementation; portable concentrator accessories are clinically relevant to maintain therapy.
`E11.9`	Type 2 diabetes mellitus without complications	Common comorbidity in patients with chronic lung disease; included as frequently present but not a direct indication for oxygen accessories.
`Z99.81`	Dependence on supplemental oxygen	Administrative diagnosis indicating the patient requires ongoing oxygen therapy and therefore may need replacement parts like `E1357`.
`Z46.6`	Encounter for fitting and adjustment of other specified devices	Encounters where accessories are fitted or replaced, documenting need for items such as a battery charger.

Related CPT Codes

CPT Code	Description	Relationship to This Procedure
`94640`	Pressurized or nonpressurized inhalation treatment for acute airway obstruction, bronchospasm, or for sputum induction for diagnostic purposes (eg, nebulizer)	Respiratory therapy procedure that may be performed in clinical assessment or follow-up visits for patients on supplemental oxygen; not billed with `E1357` but often part of overall respiratory care.
`94010`	Breathing capacity test; spirometry, including graphic record, total and timed vital capacity	Pulmonary function testing commonly used in evaluation and monitoring of chronic respiratory disease in patients who may require portable oxygen equipment.
`94620`	Pulmonary rehabilitation; one hour, per session	Pulmonary rehabilitation is frequently part of comprehensive care for patients using portable oxygen concentrators; services are separate from DME accessory billing.
`99070`	Supplies and materials (eg, DME) provided by the physician over and above those usually included with the office visit	Use when clinicians supply small durable medical items in the office; rarely used for `E1357` but clinically related when accessories are dispensed by a clinic.
`A4575`	Accessories for oxygen concentrator, replacement battery (This is a HCPCS reference example; CPT codes are limited)	Though HCPCS-level `E1357` is the primary billing code for replacement battery chargers, related supply codes may appear in workflow documentation and inventory management.