MyMedi-AI

L8658 — Interphalangeal joint spacer, silicone or equal, each

HCPCS Level II L-code · short descriptor: “Interphalangeal joint spacer”

Code system
HCPCS Level II
Family
L — Orthotics & prosthetics
Medicare coverage status
Special coverage instructions apply
DMEPOS payment category
Prosthetics & orthotics
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 2026-10-25; 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 2026-10-25; 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.

L8658 Medicare fee schedule (October 2026)

Base (no modifier) Prosthetics & orthotics

Medicare allowable ranges from $373.64 to $498.19 depending on state and rural status.

Former-CBA payment limits: ceiling $498.19 · floor $373.64

StateNon-ruralRural
AL$384.04—
AR$373.64—
AZ$373.64—
CA$373.64—
CO$498.19—
CT$498.19—
DC$403.12—
DE$403.12—
FL$384.04—
GA$384.04—
IA$373.64—
ID$498.19—
IL$373.64—
IN$373.64—
KS$373.64—
KY$384.04—
LA$373.64—
MA$498.19—
MD$403.12—
ME$498.19—
MI$373.64—
MN$373.64—
MO$373.64—
MS$384.04—
MT$498.19—
NC$384.04—
ND$498.19—
NE$373.64—
NH$498.19—
NJ$373.64—
NM$373.64—
NV$373.64—
NY$373.64—
OH$373.64—
OK$373.64—
OR$498.19—
PA$403.12—
RI$498.19—
SC$384.04—
SD$498.19—
TN$384.04—
TX$373.64—
UT$498.19—
VA$403.12—
VT$498.19—
WA$498.19—
WI$373.64—
WV$403.12—
WY$498.19—
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 L-codes

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