An Old Accident Is Missing From Your Workers’ Comp Report. Why Does It Matter?

If an old accident is missing from your workers’ compensation report, raise the omission before treating the doctor’s conclusion as a complete explanation. The important questions are what happened to the same body part before the claimed work injury, what changed afterward, and whether the physician considered the records needed to explain that difference.

A favorable conclusion can still rest on an incomplete history. So can an unfavorable one. Your task is to identify the missing facts and records; the physician’s task is to explain their medical significance. Keeping those roles separate gives counsel a concrete problem to address.

Start with the injury question the report is answering

This guide concerns whether work contributed to the claimed injury. Read the denial, report and any trial order to identify the disputed body part and event or period of work. A report about the neck may not answer a separate shoulder question. A report evaluating one accident may not address an alleged injury from repeated work over several years.

The distinction mattered in Lindley v. Golden State Manor/Tao Tai Homes, Nos. ADJ10895246, ADJ10895160 and ADJ10629441 (WCAB Oct. 2, 2026). The lien trial concerned industrial injury in three identified claims. The Board applied a contributing-cause standard, but it still needed medical evidence grounded in the history and supported by reasoning. Reports omitting an earlier accident and surgery involving overlapping body parts failed that test.

A separate question may concern how permanent disability is apportioned. Our guide to personal history in an apportionment report addresses that review. First identify which question your report actually answers rather than assume that every reference to an old injury concerns the same legal issue.

Build the history around the same body part

Start with the old event. Identify its date, the body parts involved, the first treatment, any surgery and later follow-up. Then locate records from the period between that event and the claimed work injury. Those records may explain whether symptoms continued, changed, improved or returned. A gap in the file is a gap to identify, not proof that the condition disappeared.

Next describe the work event or exposure being claimed and the symptoms reported afterward. Use the contemporaneous account where available. If an early note differs from your recollection, preserve both and explain what you believe is wrong or incomplete. Do not rewrite an old note or present a later recollection as if it were recorded at the time.

For each relevant record, note four things: Its date, the body part, what it actually documents, and whether the evaluating doctor lists or discusses it. “Prior surgery” is less informative than the operative report, the body part treated and the follow-up findings. The physician can then assess the connection rather than infer the history from a label.

Separate a missing record from a disagreement with the doctor

Suppose a worker had elbow surgery after a traffic accident, later returned to regular work, and years afterward claimed an arm injury from new duties. This is an illustration, not the facts or outcome of another case. A report that mentions only the new duties leaves the surgery and intervening history unexplained. A report that attributes everything to the old accident may leave the new duties and later changes unexplained.

The useful comparison is between those explanations and the actual records. Did the doctor receive the surgery report? Did the history identify the later duties? Which examination or diagnostic findings support the opinion? Does the report explain why the old condition, the work, or both account for the claimed injury? Those questions seek a medical explanation rather than a preferred answer.

Distinguish “the doctor never received this document” from “the doctor reviewed it but reached a conclusion I disagree with.” The first identifies missing information. The second calls for scrutiny of the reasoning. Sending another copy of an already reviewed record does not itself resolve a medical disagreement.

Read the reason for a competing medical opinion

In Lindley, the problem extended beyond an omitted date. One treating physician had the competing evaluators’ reports but did not explain why he disagreed with them. The Board compared that gap with reports discussing earlier injuries, nonwork falls, examination findings and the timing of symptoms. The case analysis explains the underlying lien dispute and outcome.

For your own review, put each competing explanation beside the facts it uses. One doctor may rely on a surgery; another may rely on later imaging or the timing of new symptoms. Identify whether they actually address the same claimed injury and records. Agreement between doctors is more informative when their reasons are visible; disagreement is more useful to examine when its factual basis is clear.

Keep the complete reports, including the record lists, history, examination, analysis and any supplements. An isolated sentence saying “work related” or “preexisting” does not show the path to the conclusion. A later supplement may also explain or change an earlier opinion, so keep the versions in order.

Bring a focused discrepancy to counsel

Make the request specific: “The report discusses the new shoulder complaint but does not list the earlier surgery records,” or “The evaluator attributes the symptoms to the old accident but does not discuss the later work description.” Attach the documents supporting that observation and identify anything still unavailable. Ask counsel how the information should be supplied and whether the procedural stage calls for a supplemental opinion or another response.

If the report is from a Qualified Medical Evaluator or Agreed Medical Evaluator, ask counsel how new records and written questions should be provided. Labor Code section 4062.3 has rules for information supplied to panel evaluators, agreements about information for an agreed evaluator, and written communications served on the other party. It also contains exceptions for the worker’s communications during the examination or at the evaluator’s request. Keep the original report and the papers showing how records and questions were submitted.

Bring any hearing notice or order as well. Counsel needs to know whether the immediate dispute concerns injury causation, a treatment lien or a different benefit, and what has already been decided. The practical goal is a supported medical account of the claimed injury—not a cleaner-looking history that leaves out an inconvenient earlier event.