MyMedi-AI

A4257 — Replacement lens shield cartridge for use with laser skin piercing device, each

HCPCS Level II A-code · short descriptor: “Replace lensshield cartridge”

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
Supplies
Prior authorization
Not on Medicare required-PA list
Face-to-face & WOPD
Not on the required list
Status
Active (HCPCS Level II October 2026)

Prior authorization

Not on the Medicare required-PA list (CMS Required Prior Authorization List — 74 items in force on 2026-10-16; 8 more from 2026-10-28; sources: CMS list updated 2026-01-13, CMS-6109-N (91 FR 47972)). 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 (CMS Required F2F & WOPD List — 83 items in force on 2026-10-16; 22 more from 2026-10-28; sources: CMS list effective 2026-04-13 (91 FR 1250), CMS-6109-N (91 FR 47972)). The standard written order must reach the supplier before claim submission.

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

A4257 Medicare fee schedule (October 2026)

Base (no modifier) Supplies

Medicare allowable ranges from $18.19 to $21.83 depending on state and rural status.

Former-CBA payment limits: ceiling $18.19 · floor $15.46

StateNon-ruralRural
AK$18.19—
AL$18.19—
AR$18.19—
AZ$18.19—
CA$18.19—
CO$18.19—
CT$18.19—
DC$18.19—
DE$18.19—
FL$18.19—
GA$18.19—
HI$18.19—
IA$18.19—
ID$18.19—
IL$18.19—
IN$18.19—
KS$18.19—
KY$18.19—
LA$18.19—
MA$18.19—
MD$18.19—
ME$18.19—
MI$18.19—
MN$18.19—
MO$18.19—
MS$18.19—
MT$18.19—
NC$18.19—
ND$18.19—
NE$18.19—
NH$18.19—
NJ$18.19—
NM$18.19—
NV$18.19—
NY$18.19—
OH$18.19—
OK$18.19—
OR$18.19—
PA$18.19—
PR$21.83—
RI$18.19—
SC$18.19—
SD$18.19—
TN$18.19—
TX$18.19—
UT$18.19—
VA$18.19—
VI$18.19—
VT$18.19—
WA$18.19—
WI$18.19—
WV$18.19—
WY$18.19—
Amounts are the Medicare DMEPOS fee-schedule allowables effective October 2026 (CMS DMEPOS Fee Schedule October 2026 (DME26-D)). 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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