A7034 — Nasal interface (mask or cannula type) used with positive airway pressure device, with or without head strap

HCPCS Level II A-code · short descriptor: “Nasal application device”

Code system: HCPCS Level II
Family: A — Medical & surgical supplies, ambulance
Medicare coverage status: Carrier judgment — coverage decided by the DME MAC
DMEPOS payment category: Inexpensive or routinely purchased
Prior authorization: Not on Medicare required-PA list
Status: Active (April 2026 HCPCS)

Prior authorization

Not on the Medicare required-PA list as of the January 13, 2026 update (74 items). Medicare Advantage and commercial plans set their own prior-authorization rules for this code — verify per plan before delivery.

A7034 Medicare fee schedule (April 2026)

NU — New purchase Inexpensive or routinely purchased

Medicare allowable ranges from $67.86 to $125.21 depending on state and rural status.

State	Non-rural	Rural
AK	$110.74	—
AL	$69.75	$111.03
AR	$69.75	$111.03
AZ	$70.00	$111.03
CA	$68.93	$111.03
CO	$71.97	$111.03
CT	$70.38	$111.03
DC	$67.86	$111.03
DE	$67.86	$111.03
FL	$69.75	$111.03
GA	$69.75	$111.03
HI	$110.74	—
IA	$70.94	$111.03
ID	$71.97	$111.03
IL	$70.16	$111.03
IN	$70.16	$111.03
KS	$70.94	$111.03
KY	$69.75	$111.03
LA	$69.75	$111.03
MA	$70.38	$111.03
MD	$67.86	$111.03
ME	$70.38	$111.03
MI	$70.16	$111.03
MN	$70.94	$111.03
MO	$70.94	$111.03
MS	$69.75	$111.03
MT	$71.97	$111.03
NC	$69.75	$111.03
ND	$70.94	$111.03
NE	$70.94	$111.03
NH	$70.38	$111.03
NJ	$67.86	$111.03
NM	$70.00	$111.03
NV	$68.93	$111.03
NY	$67.86	$111.03
OH	$70.16	$111.03
OK	$70.00	$111.03
OR	$68.93	$111.03
PA	$67.86	$111.03
PR	$125.21	—
RI	$70.38	$111.03
SC	$69.75	$111.03
SD	$70.94	$111.03
TN	$69.75	$111.03
TX	$70.00	$111.03
UT	$71.97	$111.03
VA	$69.75	$111.03
VI	$110.74	—
VT	$70.38	$111.03
WA	$68.93	$111.03
WI	$70.16	$111.03
WV	$69.75	$111.03
WY	$71.97	$111.03

Amounts are the Medicare DMEPOS fee-schedule allowables effective April 2026. Medicare typically pays 80% of the allowable after the Part B deductible; the patient owes 20%. A 2% sequestration reduction applies to the Medicare share. Former competitive-bidding-area adjustments and non-continental rates can differ — verify with your DME MAC.

Common denial codes to watch

CO-50 medical necessity

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