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L6691 — Upper extremity addition, removable insert, each

HCPCS Level II L-code · short descriptor: “Removable insert each”

Code system
HCPCS Level II
Family
L — Orthotics & prosthetics
Medicare coverage status
Carrier judgment — coverage decided by the DME MAC
DMEPOS payment category
Prosthetics & orthotics
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.

L6691 Medicare fee schedule (April 2026)

Base (no modifier) Prosthetics & orthotics

Medicare allowable ranges from $422.60 to $809.00 depending on state and rural status.

Former-CBA payment limits: ceiling $563.46 · floor $422.60

StateNon-ruralRural
AK$574.42
AL$424.15
AR$422.60
AZ$562.37
CA$562.37
CO$422.60
CT$563.46
DC$534.24
DE$534.24
FL$424.15
GA$424.15
HI$614.26
IA$502.76
ID$485.59
IL$432.88
IN$432.88
KS$502.76
KY$424.15
LA$422.60
MA$563.46
MD$534.24
ME$563.46
MI$432.88
MN$432.88
MO$502.76
MS$424.15
MT$422.60
NC$424.15
ND$422.60
NE$502.76
NH$563.46
NJ$451.22
NM$422.60
NV$562.37
NY$451.22
OH$432.88
OK$422.60
OR$485.59
PA$534.24
PR$809.00
RI$563.46
SC$424.15
SD$422.60
TN$424.15
TX$422.60
UT$422.60
VA$534.24
VI$451.22
VT$563.46
WA$485.59
WI$432.88
WV$534.24
WY$422.60
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 L-codes

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