“Eman at Yazdchi Law was extremely professional, responsive, and supportive at all times. He and his staff exceeded all of my expectations.”
Andrea Dalessandro
✦ Certified Specialist in Workers’ Compensation Law — Certified by the State Bar of California, Board of Legal Specialization ✦
A denial is not the end. It’s the beginning of our fight for your benefits.
By Eman Yazdchi, Esq. · Certified Specialist in Workers' Compensation Law, State Bar of California Board of Legal Specialization
In California, a denied Pasadena workers' comp claim is overturned through the §5402(b) 90-day presumption, an IMR appeal under §4610.5, or a Petition for Reconsideration under §5903 (25 mailed / 20 electronic). Yazdchi Law, a Certified Specialist firm, handles Huntington Hospital / Old Pasadena denial files at the Pasadena WCAB. Request a free case review.
What does a denied Pasadena workers' comp claim actually look like? On a Huntington Hospital ICU nurse's patient-handling lumbar disability case, the denial usually arrives as a §5402 written letter contesting compensability or as silence past the 90-day decision window — silence triggers the §5402(b) presumption-of-compensability rebuttable only by reasonable-diligence evidence the insurer could not have discovered earlier. On an Old Pasadena historic-restoration carpenter's fall-from-scaffold claim, the denial often takes the form of a UR cycle under California Labor Code §4610 blocking treatment authorization — routing the appeal to IMR under California Labor Code §4610.5.
Both forms are an adjuster's decision, not a final ruling. The injured Pasadena worker disputes either form at the Pasadena district WCAB through an Application for Adjudication, with the §5814 25% penalty under California Labor Code §5814 layered on the dated benefit-delay record — TD under California Labor Code §4650 not paid, medical under California Labor Code §4600 not authorized, PD advances under California Labor Code §4658 delayed. On long-tenure healthcare, JPL aerospace research, and Old Pasadena historic-restoration construction workers, §4553 50% serious-and-willful exposure under California Labor Code §4553 also surfaces when a Title 8 safety order violation is documented.
Yazdchi Law's office at 1125 W Avenue M-14, Suite A in Palmdale serves the Pasadena WCAB on denied-claim files. Eman Yazdchi handles the §5402(b) presumption fight, the §4610.5 IMR cycle, and the §5903 Petition for Reconsideration phase, and is a Certified Specialist in Workers' Compensation Law, certified by the California Board of Legal Specialization, State Bar of California.
A denied Pasadena workers' comp claim is built around five California Labor Code sections that do most of the work: California Labor Code §5402(b) (the 90-day decision-window presumption), California Labor Code §4610.5 (Independent Medical Review on UR denials), California Labor Code §5814 (the 25% penalty on unreasonable delay), California Labor Code §5900 (the framework section authorizing reconsideration), and California Labor Code §5903 (the 25-day/20-day Petition for Reconsideration deadline).
Under California Labor Code §5402(b), once an injured Pasadena worker files a DWC-1 claim form, the insurer has 90 days to accept or deny the claim. If the insurer misses the 90-day window, the injury is presumed compensable — and that presumption can only be rebutted by evidence the insurer could not have discovered with reasonable diligence during the 90 days. On a Huntington Hospital ICU nurse's patient-handling lumbar disability case, the §5402(b) presumption is leverage because Huntington Hospital / Old Pasadena insurers routinely sit on a DWC-1 while waiting on a QME panel under California Labor Code §4062.2 or a UR cycle under California Labor Code §4610 — both of which can blow past the 90-day window. California Labor Code §5402(c) also requires up to $10,000 in immediate medical treatment within one day of the DWC-1, regardless of the 90-day status — a Pasadena delay on the §5402(c) duty surfaces a separate §5814 25% penalty.
If the Pasadena insurer's Utilization Review under California Labor Code §4610 denies a treatment request — surgery, physical therapy, prescriptions, medical-legal evaluation — the worker appeals through Independent Medical Review within 30 days under California Labor Code §4610.5. An independent physician reviewer reads the medical record against the Medical Treatment Utilization Schedule and either upholds or overturns the denial. The IMR decision is binding except on narrow grounds under California Labor Code §4610.6 — the five enumerated grounds being procurement by fraud, material conflict of interest, bias on a constitutionally protected basis, mistake of fact not subject to expert opinion, or plainly erroneous express or implied finding of fact.
Under California Labor Code §5814, when a California workers' comp insurer unreasonably delays or denies a benefit owed to a Pasadena worker, a 25% penalty attaches to that delayed benefit — temporary disability not paid timely under California Labor Code §4650, medical treatment not authorized under California Labor Code §4600, permanent disability advances not paid on schedule under California Labor Code §4658. The penalty applies per benefit unreasonably delayed, not once per case. The Pasadena workers' comp judge applies California Labor Code §5814 after a focused evidentiary showing on the dated delay record.
On an Old Pasadena historic-restoration carpenter's fall-from-scaffold claim, a Petition for Reconsideration under California Labor Code §5900 is filed at the Pasadena district WCAB within 25 days of mail service of the workers' comp judge's adverse decision (20 days if served electronically via EAMS under Title 8 CCR section 10605). On the typical Huntington Hospital / Old Pasadena denial appeal, the Petition identifies one or more of the §5903 grounds: newly discovered evidence on the Huntington Hospital patient-handler spinal cases, JPL desk-work repetitive-motion files, and Old Pasadena historic-restoration fall-from-scaffold cases, an unreasonable factual finding on the §5402(b) presumption or the QME apportionment under California Labor Code §4663, or an error of law on the §5402(c) one-day duty or the §5814 penalty record. The WCAB either grants reconsideration and modifies the decision, or denies. A denial opens the Writ of Review path under California Labor Code §5950 within 45 days.
Injured at work in Pasadena? Call (661) 273-1780
Tap to call →Pasadena denied-claim appeals are heard at the Pomona district office of the Workers' Compensation Appeals Board, the district that covers eastern LA County including Pasadena, Arcadia, Sierra Madre, Monrovia, Altadena, South Pasadena, and San Marino. Some Pasadena ZIPs route to the Los Angeles district office at 320 W 4th Street. Yazdchi Law regularly appears at the Pomona WCAB on denied-claim appeals, including those that involve the California Labor Code §5402(b) 90-day presumption, the California Labor Code §5814 25% penalty, and the California Labor Code §5903 25-day/20-day Petition for Reconsideration deadline. Related coverage: Pasadena workers' comp claims. See also: California restaurant-worker injury practice.
A Huntington Hospital ICU nurse's patient-handling lumbar disability case typically receives the §5402 denial after the §5402(b) 90-day window has run, opening the presumption-of-compensability argument under California Labor Code §5402(b). An Old Pasadena historic-restoration carpenter's fall-from-scaffold claim typically receives the denial after a UR cycle under California Labor Code §4610 held the treatment authorization past statute, opening the IMR appeal under California Labor Code §4610.5 plus the §5814 25% penalty on the delay. The Huntington Hospital patient-handler spinal cases, JPL desk-work repetitive-motion files, and Old Pasadena historic-restoration fall-from-scaffold cases produces a high concentration of these layered-denial files on the Pasadena docket.
On an Old Pasadena historic-restoration carpenter's fall-from-scaffold claim, the §5402 denial often runs alongside a separate California Labor Code §4553 50% serious-and-willful penalty argument. Under §4553, when the Pasadena employer knew of a Title 8 safety order violation and failed to correct it, the worker recovers a 50% penalty on the compensation owed. The Huntington Hospital patient-handler spinal cases, JPL desk-work repetitive-motion files, and Old Pasadena historic-restoration fall-from-scaffold cases sometimes produces a documented Cal/OSHA Title 8 citation that locks in the §4553 record. Filed at the Pasadena WCAB alongside the underlying denial dispute, the §4553 issue often moves the insurer's denial settlement materially.
Last reviewed by Eman Yazdchi, Esq., May 2026.
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