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✦ Certified Specialist in Workers’ Compensation Law — Certified by the State Bar of California, Board of Legal Specialization ✦
Serving injured workers across California. Board-certified specialist; no fee unless we win.
By Eman Yazdchi, Esq. · Certified Specialist in Workers' Compensation Law, State Bar of California Board of Legal Specialization
In California, Labor Code §5410 lets an injured worker reopen a workers' compensation claim within five years of the date of injury for new and further disability — additional medical treatment, increased permanent disability, or new symptoms not contemplated at the original settlement. Yazdchi Law handles California §5410 reopening petitions statewide.
California Labor Code §5410 allows a California injured worker to petition the WCAB to reopen a workers' compensation claim within five years of the date of injury for new and further disability. The §5410 California rule is the safety valve when a closed claim worsens — additional medical treatment becomes necessary, permanent disability has increased beyond the original rating, or new symptoms manifest that were not contemplated at the time of the original settlement under California Labor Code §5001 or California Labor Code §5003.
Under California Labor Code §5410, "new and further disability" in California means a worsening of the original industrial injury not contemplated at the original settlement. The §5410 standard requires a measurable change — a previously settled back injury that now requires surgery, an industrial shoulder condition that has progressed to chronic pain syndrome, or a previously asymptomatic body part now symptomatic. Routine ongoing treatment is not §5410 California new and further disability.
Under California Labor Code §5410, the California reopening petition must be filed within five years from the original date of injury — not five years from when the worsening was discovered, not five years from the settlement date. The §5410 five-year clock runs from the original California Labor Code §5412 date of injury (for CT cases) or the date of the specific traumatic event. A California worker who waits past the §5410 window loses the right to reopen entirely.
When a California §5410 petition is granted, the worker can recover additional benefits: further medical treatment under California Labor Code §4600, additional temporary disability under California Labor Code §4653 for new periods off work, increased permanent disability under California Labor Code §4660 reflecting the worsened condition, and the California Labor Code §4658.7 SJDB voucher when applicable. The §5410 California reopening can substantially increase total comp recovery when the worsening is severe.
Under California Labor Code §5001 and California Labor Code §5003, a Compromise & Release closes out future benefits including the §5410 reopening right — the worker takes a lump sum and gives up the right to reopen. A Stipulations with Request for Award preserves the §5410 right but settles only the immediately known benefits. The C&R-vs-Stipulations choice in California is one of the most consequential decisions in a comp settlement because of the §5410 implication.
Injured at work? Call (661) 273-1780
Tap to call →Last reviewed by Eman Yazdchi, Esq., May 2026.
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