California form interrogatories in a personal injury case are a standardized set of pre-printed questions on Judicial Council Form DISC-001 that the opposing party can require you to answer in writing, under oath, within 30 days of service. The answers become part of the sworn record and feed directly into settlement talks, your deposition, and anything that happens at trial. Treat them casually and you give the other side a weapon; handle them carefully and they’re just paperwork.
What DISC-001 Actually Is
DISC-001 is the Judicial Council’s approved form for unlimited civil cases, meaning cases where more than $35,000 is at stake.1Judicial Council of California. Form DISC-001 – Form Interrogatories General The opposing attorney doesn’t draft the questions. They check boxes next to pre-written questions from the court-approved list and send the completed form to you.2Judicial Branch of California. Use Form Interrogatories to Request Information
The questions cover your background, employment, insurance, prior addresses, the facts of the incident, witnesses, every piece of your damages claim, and any earlier injuries or lawsuits involving the same body parts. That last category matters more than people realize, because defense attorneys use it to argue your current injuries were pre-existing.
One quirk worth knowing: specially prepared interrogatories are capped at 35 per party, but form interrogatories have no numerical limit in unlimited civil cases.3California Legislative Information. California Code of Civil Procedure CCP 2030.030 The other side can check every box without asking the court’s permission.
Section 6.0: The Injury and Damages Questions
Section 6.0 of DISC-001 is the core of any personal injury response. It opens by asking whether you attribute any physical, mental, or emotional injuries to the incident. A yes answer triggers a chain of follow-ups: identify each injury and the body part affected, say whether you still have complaints, say whether those complaints are improving or worsening, and describe how often they occur.1Judicial Council of California. Form DISC-001 – Form Interrogatories General
You then have to list every healthcare provider who examined or treated you for injuries from the incident. For each one: name, address, phone number, type of treatment, dates of treatment, and charges to date. Medications get the same treatment: name of the drug, who prescribed it, dates taken, cost. The form separately asks about ambulance, nursing, prosthetics, and other services. Finally, it asks whether any provider has recommended future treatment and, if so, the nature, expected duration, and estimated cost.
That future-treatment answer drives a large part of your case value, because it establishes the basis for future medical damages. If you’ve seen multiple doctors, had imaging at different facilities, and used more than one pharmacy, assembling complete information takes real time. Start pulling billing records and treatment summaries the week the interrogatories arrive.
Your 30-Day Clock
You have 30 days from service to serve written responses.4California Legislative Information. California Code of Civil Procedure 2030.260 If the interrogatories were served by mail and both addresses are in California, you get an extra five calendar days, so the real deadline is 35 days.5California Legislative Information. California Code of Civil Procedure 1013
Need more time? Contact opposing counsel and ask for a written extension. Most attorneys agree to two or three weeks early in a case. Get the agreement in writing, even if it’s just an email. If opposing counsel refuses, you can ask the court for an extension, but that’s rarely necessary.
Writing and Verifying the Responses
The response document is typed, and each answer carries the same number as the question it addresses. You don’t need to reprint the question text itself.6Justia Law. California Code of Civil Procedure 2030.210 The opening paragraph identifies who is responding, the set number, and who propounded the questions.
Each answer must be as complete and straightforward as the information reasonably available to you allows. If you can’t fully answer, answer to the extent you can and explain what’s missing. You also have an affirmative duty to make a reasonable effort to get information from other people or organizations when it isn’t in your personal possession, unless that information is equally available to the other side.7California Public Law. California Code of Civil Procedure 2030.220
That investigation duty catches people off guard. If the form asks for exact medical charges and the bills aren’t in your folder, “I don’t know” won’t fly. Call the provider and get the number. The only real defense to not tracking something down is that the other side can get it just as easily.
You then sign the responses under oath, verifying under penalty of perjury that the answers are true and correct.8California Legislative Information. California Code of Civil Procedure 2030.250 If the response contains only objections, your attorney signs those separately and your signature isn’t required. An unverified response is treated as no response at all. The answers can be flawless, but without the signed verification page, the other side can move to compel as if nothing was served. Double-check the signature and date before anything goes out.
Serve the original on the party who sent the interrogatories and copies on everyone else who has appeared in the case. The interrogatories and responses do not get filed with the court.
Objecting to Specific Questions
You can object to questions that cross legal boundaries. Common grounds include attorney-client privilege, work product protection, and interrogatories that invade your constitutional right to privacy without sufficient justification. When you object, name the specific ground. Generic objections like “overly broad,” with no explanation, usually lose if the other side files a motion.9Justia Law. California Code of Civil Procedure 2030.240
If only part of a question is objectionable, you still answer the rest. You cannot refuse an entire multi-part interrogatory because one subpart touches on privileged ground. Answer the clean parts and state your objection to the rest.
On medical history specifically, opposing counsel is entitled to information about the body parts and conditions you’ve put at issue in the lawsuit. They are not automatically entitled to your lifetime medical file. If a question reaches beyond the injuries you’ve claimed, a privacy objection is appropriate. When you authorize release of records, keep the scope limited to treatment related to the claimed injuries. Overly broad authorizations are hard to walk back.
What Happens If You Miss the Deadline
Blowing the 30-day window has automatic consequences. You waive every objection you could have raised, including attorney-client privilege and work product.10California Legislative Information. California Code of Civil Procedure 2030.290 Information you might legitimately have shielded is now fair game.
A court can undo the waiver only if two things are true: you’ve since served a response that substantially complies with the statutory requirements, and your failure to respond on time was due to mistake, inadvertence, or excusable neglect.10California Legislative Information. California Code of Civil Procedure 2030.290 “I was busy” doesn’t usually qualify. Beyond losing your objections, the other side can immediately move for an order compelling you to respond, and once a court order exists, ignoring it opens the door to sanctions.
Motions to Compel and Sanctions
If opposing counsel considers your answers evasive or incomplete, or your objections meritless, they can file a motion to compel further responses. Before filing, they must first attempt to resolve the dispute informally through a meet-and-confer process, documented in a declaration showing a good faith effort by phone, in person, or by videoconference.11California Legislative Information. California Code of Civil Procedure 2016.040
The motion must be filed within 45 days of service of the verified response, or by a later date the parties have agreed to in writing. Miss that 45-day window and the right to compel a further response is permanently waived.12California Legislative Information. California Code of Civil Procedure 2030.300
Sanctions are where things get expensive. The court must impose monetary sanctions against whichever side unsuccessfully makes or opposes the motion, unless that side had substantial justification or special circumstances make sanctions unjust.12California Legislative Information. California Code of Civil Procedure 2030.300 In practice, the loser pays the winner’s attorney fees for the motion.
Ignoring a court order compelling further responses escalates the consequences sharply. The court can impose issue sanctions (treating disputed facts as established against you), evidence sanctions (barring you from introducing certain evidence), or terminating sanctions (striking your pleadings or entering default judgment).13California Legislative Information. California Code of Civil Procedure 2023.030 Terminating sanctions are rare but do get imposed for repeated, willful noncompliance.
Mistakes That Damage Personal Injury Claims
The most damaging error isn’t a wrong answer; it’s an incomplete one. Defense attorneys and claims adjusters compare your interrogatory responses against your medical records, your deposition, and your social media activity. Any inconsistency becomes ammunition. If you list three doctors in your interrogatory response but your medical records show five, the defense will argue you’re hiding something or padding your claim.
The prior-injuries question is a common trap. People are tempted to omit an old fender bender or downplay a workers’ compensation claim from years back. The other side will find those through database searches and subpoenas. Disclose them honestly and let your attorney explain why they don’t undermine your current claim.
Keep each response factual and specific. “I hurt my back” is less useful than “I sustained a lumbar disc herniation at L4-L5.” On the other hand, “I believe the defendant was texting because teenagers always text while driving” is speculation that hurts more than it helps. Stick to what you know, flag what you don’t, and let your attorney frame the legal arguments.
One more practical point: assume anything you post online during the case is discoverable. A photo of you at a hiking trail two weeks after swearing you can’t walk is the kind of evidence that ends cases. Don’t delete older posts, because that can be treated as spoliation of evidence, but be careful about what you add from the day the lawsuit is filed forward.