“How long will this take” has an honest answer nobody likes: simple claims close in months; permanent-disability cases commonly run one to two years; litigated ones longer. The reason is structural — the case can’t be valued until the medicine is done. Here is the clock, phase by phase.
Phase 1 — Filing and the 90-day window
Report the injury and the employer must provide the DWC-1 claim form within one working day of notice. Once filed, the insurer must accept or reject within 90 days or the claim is presumed compensable (§5402) — and up to $10,000 in treatment must be authorized while they investigate. Many delays people blame on “the system” are actually unfiled paperwork.
Phase 2 — Treatment and TD (the healing clock)
Treatment runs while you recover, with temporary disability replacing wages — generally capped at 104 weeks of payments (§4656). This phase is as long as the medicine is: weeks for a sprain, a year-plus for surgery and rehab. Nothing about permanent disability can be measured yet.
Phase 3 — P&S: the hinge
Everything pivots the day a physician declares you permanent and stationary. TD ends, PD advances begin, and the P&S report carries the inputs — WPI, apportionment, work restrictions — that become the rating.
Phase 4 — The dispute loop (where months go to die)
If either side disagrees with the report, the QME/AME process begins: panel requests, strike lists, scheduling windows, the exam, the report, supplementals, maybe a deposition. Each round is commonly measured in months, and apportionment fights add rounds. This loop — not the rating math — is why comparable injuries can differ by a year in case length.
Phase 5 — Rating and settlement
Once the reporting settles, the rating computes in minutes — string, percentage, dollars. Then the real negotiation: Stip vs. C&R, the medical tail, and WCAB approval of whatever is signed. Payment delays at any phase are a separate problem with their own penalties.
The part you control
File fast, show up to every exam, and audit the P&S report the day it arrives — every injured part addressed, the job description accurate, the WPI and apportionment checked against the calculator. The system’s clock is slow; don’t add your own delays to it. Estimates for informational use; not legal advice.