E0431 — Portable gaseous oxygen system, rental; includes portable container, regulator, flowmeter, humidifier, cannula or mask, and tubing

Code system

HCPCS Level II

Family

E — Durable medical equipment

Medicare coverage status

Special coverage instructions apply

DMEPOS payment category

Oxygen & oxygen equipment

Prior authorization

Not on Medicare required-PA list

Face-to-face & WOPD

Required (Oxygen equipment)

Status

Active (April 2026 HCPCS)

Every Medicare DMEPOS claim needs a Standard Written Order with all six elements (42 CFR 410.38(d)):

• Beneficiary name or Medicare Beneficiary Identifier (MBI) (42 CFR 410.38(d)(1)(i)(A))
• General description of the item (42 CFR 410.38(d)(1)(i)(B))
• Quantity to be dispensed, if applicable (42 CFR 410.38(d)(1)(i)(C))
• Order date (42 CFR 410.38(d)(1)(i)(D))
• Treating practitioner name or NPI (42 CFR 410.38(d)(1)(i)(E))
• Treating practitioner signature (42 CFR 410.38(d)(1)(i)(F))

F2F + WOPD REQUIRED E0431 is on Medicare's Required Face-to-Face & WOPD List (Oxygen equipment — list effective 2026-04-13, 83 items). Two extra conditions of payment apply:

• Face-to-face encounter (in-person or telehealth) with the treating practitioner within the 6 months before the order date
• Written order communicated to the supplier before delivery (WOPD)

Blank requirements checklist only — MyMedi-AI never collects or stores completed orders.