Summary & Overview
HCPCS E1391: Oxygen Concentrator, Dual Delivery Port, High Concentration
HCPCS Level II code E1391 identifies a durable medical equipment item: an oxygen concentrator with a dual delivery port capable of delivering 85% or greater oxygen concentration at the prescribed flow rate. This device is commonly used in home and outpatient settings for patients with chronic or acute hypoxemia who require reliable, high-concentration oxygen delivery. Nationally, the code matters because it guides coverage determinations, claims adjudication, and durable medical equipment supply for a growing population of patients managed outside the hospital.
Key payers addressed include Aetna, Blue Cross Blue Shield, Cigna Health, UnitedHealthcare, and Medicare. Readers will find a concise outline of what E1391 represents clinically, typical sites of service, and which major payers are commonly involved in coverage and reimbursement decisions. The publication also summarizes benchmarking points and relevant policy considerations affecting durable medical oxygen equipment, and provides clinical context about device capabilities and typical use cases. Data not available in the input for payer-specific rates, associated taxonomies, and ICD-10 pairings are noted where applicable.
Billing Code Overview
HCPCS Level II code E1391 describes an oxygen concentrator with dual delivery port, capable of delivering 85 percent or greater oxygen concentration at the prescribed flow rate, billed per unit (each). The service type is durable medical equipment providing supplemental oxygen therapy for patients requiring continuous or intermittent oxygen delivery. The typical site of service is the patient's home or other outpatient/home-care setting where durable oxygen equipment is used to meet respiratory needs.
Clinical & Coding Specifications
Clinical Context
A 72-year-old patient with chronic hypoxemic respiratory failure secondary to chronic obstructive pulmonary disease (COPD) is discharged from a hospital stay after treatment for an acute exacerbation. The physician orders home oxygen therapy with a stationary oxygen concentrator capable of delivering high-concentration oxygen and dual delivery ports to serve two devices or patients. Respiratory therapy staff coordinate delivery, perform a home safety assessment, educate the patient and caregiver on device operation, nasal cannula fitting, flow settings, routine maintenance, and alarm response. The concentrator E1391 is delivered to the patient’s residence; setup includes verifying the prescribed flow rate, ensuring oxygen concentration ≥85% at the prescribed flow, and documenting device serial number and delivery date in the durable medical equipment record. Follow-up occurs via home health or outpatient pulmonary clinic to confirm ongoing need, adherence, and to assess for changes in oxygen prescription or equipment needs.
Coding Specifications
| Modifier | Description | When to Use |
|---|---|---|
00 | No modifiers required / default | Rarely appended; used when no other modifier applies |
22 |