MyMedi-AI

L8604 — Injectable bulking agent, dextranomer/hyaluronic acid copolymer implant, urinary tract, 1 ml, includes shipping and necessary supplies

HCPCS Level II L-code · short descriptor: “Dextranomer/hyaluronic acid”

Code system
HCPCS Level II
Family
L — Orthotics & prosthetics
Medicare coverage status
Carrier judgment — coverage decided by the DME MAC
Prior authorization
Not on Medicare required-PA 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.

Common denial codes to watch

CO-50 medical necessity

Related L-codes

L8600L8603L8605L8606L8607L8608L8609L8610L8612L8613L8614L8615

Bill L8604 with confidence

MyMedi-AI scrubs whole claims against NCCI pairs, MUE limits, modifier rules, and PA flags before you submit — built for DME teams, no PHI stored on our servers.

Start free trial   Run a CMS-0057-F readiness check

Prefer DIY compliance? Self-audit documentation kits for DME suppliers →