HCPCS code E0443: Portable oxygen contents, gaseous, 1-month supply

Yes—up to three months’ worth may be delivered in a single trip, but billing must still reflect one unit per month, and suppliers must maintain proof of delivery evidence.

The 36-month rental cap applies to the oxygen equipment (e.g., E0431). After that period, the patient owns the equipment, but suppliers may continue to bill for portable oxygen contents (E0443) as long as coverage criteria and documentation standards are met.

Healthcare providers must supply a valid oxygen order, justification of medical necessity, the patient's oxygen prescription details, and suppliers must retain proof of delivery for each billing period. Guidance from suppliers can assist providers in meeting payer standards and ensuring compliant claims.