MyMedi-AI

A4407 — Ostomy skin barrier, with flange (solid, flexible, or accordion), extended wear, with built-in convexity, 4 x 4 inches or smaller, each

HCPCS Level II A-code · short descriptor: “Ext wear ost skn barr <=4sq"”

Code system
HCPCS Level II
Family
A — Medical & surgical supplies, ambulance
Medicare coverage status
Special coverage instructions apply
DMEPOS payment category
Ostomy, tracheostomy & urological supplies
Prior authorization
Not on Medicare required-PA list
Face-to-face & WOPD
Not on the required 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.

Order readiness — what the written order must contain

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))

Not on the F2F/WOPD list (April 13, 2026 update — 83 items). The standard written order must reach the supplier before claim submission.

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

A4407 Medicare fee schedule (April 2026)

Base (no modifier) Ostomy, tracheostomy & urological supplies

Medicare allowable ranges from $12.48 to $14.94 depending on state and rural status.

Former-CBA payment limits: ceiling $12.48 · floor $10.61

StateNon-ruralRural
AK$12.48
AL$12.48
AR$12.48
AZ$12.48
CA$12.48
CO$12.48
CT$12.48
DC$12.48
DE$12.48
FL$12.48
GA$12.48
HI$12.48
IA$12.48
ID$12.48
IL$12.48
IN$12.48
KS$12.48
KY$12.48
LA$12.48
MA$12.48
MD$12.48
ME$12.48
MI$12.48
MN$12.48
MO$12.48
MS$12.48
MT$12.48
NC$12.48
ND$12.48
NE$12.48
NH$12.48
NJ$12.48
NM$12.48
NV$12.48
NY$12.48
OH$12.48
OK$12.48
OR$12.48
PA$12.48
PR$14.94
RI$12.48
SC$12.48
SD$12.48
TN$12.48
TX$12.48
UT$12.48
VA$12.48
VI$12.48
VT$12.48
WA$12.48
WI$12.48
WV$12.48
WY$12.48
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

Related A-codes

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