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A6531 — Gradient compression stocking, below knee, 30-40 mmhg, used as a surgical dressing, each

HCPCS Level II A-code · short descriptor: “Compress stking bk30-40 surg”

Code system
HCPCS Level II
Family
A — Medical & surgical supplies, ambulance
Medicare coverage status
Special coverage instructions apply
DMEPOS payment category
Surgical dressings
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.

A6531 Medicare fee schedule (April 2026)

AW Surgical dressings

Medicare allowable ranges from $61.66 to $74.00 depending on state and rural status.

Former-CBA payment limits: ceiling $61.66 · floor $52.41

StateNon-ruralRural
AK$61.66
AL$61.66
AR$61.66
AZ$61.66
CA$61.66
CO$61.66
CT$61.66
DC$61.66
DE$61.66
FL$61.66
GA$61.66
HI$61.66
IA$61.66
ID$61.66
IL$61.66
IN$61.66
KS$61.66
KY$61.66
LA$61.66
MA$61.66
MD$61.66
ME$61.66
MI$61.66
MN$61.66
MO$61.66
MS$61.66
MT$61.66
NC$61.66
ND$61.66
NE$61.66
NH$61.66
NJ$61.66
NM$61.66
NV$61.66
NY$61.66
OH$61.66
OK$61.66
OR$61.66
PA$61.66
PR$74.00
RI$61.66
SC$61.66
SD$61.66
TN$61.66
TX$61.66
UT$61.66
VA$61.66
VI$61.66
VT$61.66
WA$61.66
WI$61.66
WV$61.66
WY$61.66
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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