Delayed Diagnosis in Washington
Average Settlement: $250,000 - $800,000 | Statute: 3 years from the date of the act or omission, or 1 year from the date the injury was or should have been discovered, whichever is later
About Delayed Diagnosis
Delayed diagnosis occurs when a healthcare provider fails to identify a medical condition in a timely manner, allowing the disease to progress to a more advanced and less treatable stage. Unlike misdiagnosis, the correct diagnosis is eventually made, but the delay causes measurable harm to the patient. These cases are especially common in cancers, heart disease, and infections where early intervention is critical to survival.
Washington Medical Malpractice Laws
Statute of Limitations
3 years from the date of the act or omission, or 1 year from the date the injury was or should have been discovered, whichever is later
Damage Cap
No cap on damages
Discovery Rule
Washington applies the discovery rule — the 1-year discovery period runs from when the patient discovers or should have discovered the injury, but the claim must be filed within 8 years of the act (statute of repose).
Pre-Filing Requirements
Plaintiffs must file a certificate of merit from a qualified expert and provide 90 days' notice of intent to file a claim.
Common Examples of Delayed Diagnosis
- •Failure to order appropriate diagnostic tests when symptoms are present
- •Delayed cancer diagnosis due to ignoring persistent symptoms or abnormal screening results
- •Failing to follow up on abnormal lab work or imaging findings
- •Dismissing patient complaints as stress or aging when a serious condition exists
- •Delayed diagnosis of appendicitis leading to rupture and sepsis
- •Failure to refer a patient to a specialist in a timely manner
- •Delayed identification of infections such as meningitis or sepsis
Key Facts
- ✓Proving a delayed diagnosis claim requires establishing that an earlier diagnosis would have led to a materially better outcome for the patient
- ✓Cancer cases are the most common delayed diagnosis claims, with breast, lung, and colorectal cancers being the most frequently litigated
- ✓Medical experts must testify about the staging and prognosis at the time the diagnosis should have been made versus when it was actually made
- ✓Electronic health records showing when symptoms were first reported and what follow-up actions were taken are key evidence
- ✓Some delayed diagnosis cases involve systemic failures, such as lost test results or miscommunicated findings between providers, which can implicate hospitals and health systems
- ✓Washington provides plaintiffs the later of 3 years from the act or 1 year from discovery, giving additional time to file.
- ✓A certificate of merit and 90-day pre-suit notice are required before filing a malpractice complaint.
- ✓Washington follows a pure comparative negligence system, allowing recovery regardless of the plaintiff's percentage of fault.
- ✓Mandatory mediation is required in many counties before the case proceeds to trial.
- ✓Punitive damages are generally not available in Washington, except in limited statutory circumstances.
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This information is for educational purposes only and is not legal advice. Consult a licensed medical malpractice attorney in Washington.