Every comp case with a fight in it accumulates passengers: doctors who treated on credit, the EDD, interpreters, copy services. These are liens — claims against the case, not the worker — and understanding them explains both how injured workers get treated during a denial and why settlement paperwork reads the way it does.
Where liens come from
§4903 lists who can claim: above all self-procured medical treatment (§4903(b)) — the surgeon who operated on a denied case on a lien basis, betting on compensability — plus the EDD recouping what it advanced, med-legal costs, and interpreter and related services. Lien-basis treatment is the quiet infrastructure of denied-case medicine: it is how care continues while the carrier says no.
The discipline SB 863 imposed
Liens were once comp’s wild west — filed years late, in bulk, as a settlement-extraction business. SB 863 added filing fees and real deadlines (generally 18 months from the last date of service for modern treatment), and timeliness now kills late claims outright. For providers the playbook is: file early, document why treatment outside the MPN was justified — a denied case or an emergency — and keep billing records that survive scrutiny.
How they get resolved — and whose money it is
Liens usually wait until the case-in-chief resolves, then proceed through lien conferences and lien trials at the WCAB, where most settle for a negotiated fraction. The drafting point that matters to workers: a properly built C&R has the defendant pay, adjust, or litigate the liens — the fight stays on the defense side of the table and the worker’s check stays whole. The PD math underneath is untouched by any of it: the rating prices the injury; liens argue over who pays whom around it.
Estimates for informational use; not legal advice.
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