CNESST Attestation médicale (1936): Medical Certificate

This is the first medical certificate in a CNESST work-injury file. The first health professional who takes charge of the worker completes it at the first visit after a work accident, a suspected occupational disease, or a recurrence, relapse or aggravation, recording the precise diagnosis, injury sites, expected consolidation (14 days or less, or more than 14 days) and care given. The worker passes the employer's copy to the employer.

Who completes it

The first health professional who takes charge of the worker completes the whole form; CNESST's guide defines the treating professional as the physician, IPS, dentist, pharmacist or optometrist the worker chooses. The worker files a Réclamation du travailleur and the employer sends CNESST its Avis de l'employeur et demande de remboursement.

How to fill it in

Renseignements sur l'identité du bénéficiaire et du professionnel de la santé (top block)

For a Québec beneficiary, copy the details from the health insurance card: N° d'assurance maladie, Prénom et nom à la naissance, date of birth, sex and card expiry date. For any other beneficiary, enter the worker's name, first name, date of birth and sex, and add the employer's name and address in the diagnosis box. Then enter your own name, licence number (N° de permis) and group number (N° de groupe).

Date de l'événement d'origine, Date de récidive, rechute ou aggravation, Date de la visite

Enter the date of the work accident as the original event date. For an occupational disease, the event date is the date of the medical consultation at which the disease was diagnosed. Fill in the recurrence, relapse or aggravation date only when one applies, using the date it appeared, and enter the date you examined the worker as the visit date. Dates go in year, month, day order (AAAA MM JJ).

Diagnostic(s) précis de la lésion professionnelle et renseignements complémentaires

Describe the nature of the injury or disease as precisely as possible. If the diagnosis is uncertain, you must say so; the guide's example is a probable supraspinatus tendinitis of the left shoulder. Always add the treatments prescribed or administered (nature et durée des soins ou des traitements) and their expected duration. Harassment is not a diagnosis: record the physical or psychological diagnosis that results from the workplace event.

Siège(s) de la lésion (Cochez tous les éléments qui s'appliquent)

Tick every injured site: Visage, Yeux, Dents, Oreille gauche or droite, Crâne, the Cervical, Dorsal, Lombaire or Sacré regions, Thorax, Bassin, Abdomen, or Autres (précisez) with a written description. Upper-limb (Membre supérieur) segments run from Épaule to Doigts and lower-limb (Membre inférieur) segments from Hanche to Orteils, each with a Gauche and a Droite box. CNESST asks for the side whenever a limb is injured.

Période prévisible de consolidation

The period runs from the date the worker became unable to do their job. If you expect consolidation in 14 days or less, tick “14 jours ou moins” and enter the expected consolidation date. If you expect more than 14 days, tick “plus de 14 jours” and enter the expected duration in weeks (Nombre de semaines) counted from this visit. Consolidation means healing or stabilization with no further improvement foreseeable.

Reverrez-vous le travailleur?

Tick Oui or Non and, if you will see the worker again, enter the planned date (Si oui, date prévue). If you see the worker again during a consolidation period of 14 days or less, CNESST's guide says you may complete a new Attestation médicale at that visit. When consolidation is expected beyond 14 days, later reports go on the Rapport médical (1937).

Lieu de la visite, Signature du professionnel de la santé

Enter the name of the clinic or health establishment where you examined the worker, with its address, telephone and fax numbers. Sign and date the form. Tick “Cochez si professionnel de la santé non participant à la RAMQ” only if you do not participate in RAMQ. The back of the form asks you to read CNESST's Guide d'utilisation des formulaires médicaux before completing it.

Common mistakes

  • Giving a vague diagnosis, or not flagging an uncertain one; the guide asks for the most precise diagnosis possible and says an uncertain diagnosis must be identified as such.
  • Leaving out the treatments prescribed or administered and their expected duration, which the guide says must always appear with the diagnosis.
  • Ticking a limb segment without its side, or only one site when several are injured; the guide asks for every site, and Gauche or Droite for limbs.
  • Entering a date after ticking “plus de 14 jours”; that choice calls for the expected duration in weeks from your examination, while “14 jours ou moins” calls for a date.
  • Writing harassment as the diagnosis; CNESST assesses the physical or psychological diagnosis resulting from the workplace event, not the harassment situation itself.
  • Sending an incomplete form: CNESST will ask you to supply missing or non-compliant information on the form at no additional fee, which can delay the worker's file.

Submitting and payment

How to submit it
Send it from a CNESST-certified EMR (DME), or fill the PDF on screen and upload it through CNESST's Envoi de document service, which needs no registration; paper sets can be ordered from CNESST when electronic sending isn't possible. Complete it at the first visit, keep a copy and give the worker two copies (worker and employer).
Who pays
CNESST bears the cost: participating professionals bill RAMQ under code 09926, printed on the form, while non-participating professionals tick the box provided and invoice the worker, who claims reimbursement from CNESST.

Good to know

  • Ticking “plus de 14 jours” obliges the treating professional to send a Rapport médical sommaire de prise en charge (1937) to CNESST within 6 days of the first examination.
  • The form has no field for work restrictions. An employer offering temporary work must use the Assignation temporaire d'un travail form (2001), whose sections G to J the treating professional completes.
  • A worker kept off work beyond the day the injury appeared must give this attestation to the employer, who must send it to CNESST with the employer's own form.
  • CNESST copies medical reports to the employer's designated professional. If that professional's report contradicts your conclusions, you have 30 days from receiving it to file a rapport complémentaire with CNESST.

Get the official form

Download the current version from the source each time; forms change without notice.

Attestation médicale

Medical Certificate

Fill it with Vero

Upload the fillable PDF once and Vero Documents fills it from the visit note and the chart, ready for you to review and sign. Download, print, or email the finished form, with the patient’s consent.

How this list is checked

Frequently asked questions

Who must complete the CNESST Attestation médicale?

The first health professional who takes charge of the injured worker, at the first visit. CNESST's guide defines the treating professional as the physician, IPS, dentist, pharmacist or optometrist chosen by the worker. If the worker could not choose that first professional, the professional they later choose must provide the attestation when the worker asks for it.

Should I tick “14 jours ou moins” or “plus de 14 jours”?

Count from the date the worker became unable to do their job. If you expect consolidation within 14 days, tick “14 jours ou moins” and enter the expected consolidation date. If you expect longer, tick “plus de 14 jours” and enter the expected duration in weeks from your visit; a Rapport médical sommaire de prise en charge must then follow within 6 days.

Can I fill in a new Attestation médicale at a follow-up visit?

Yes, when consolidation is expected within 14 days: CNESST's guide says that if you see the worker again during a consolidation period of 14 days or less, you may complete a new attestation. When consolidation is expected beyond 14 days, follow-up is reported on the Rapport médical (1937), and the Rapport final (1938) records consolidation.

Is the Attestation médicale available in English?

No. CNESST publishes this form in French only. It exists as a fillable PDF, as paper sets ordered from CNESST, and inside CNESST-certified EMRs (DME). CNESST's guide notes that the EMR version fills in the patient's identification automatically, sends the data to CNESST in real time and produces the official copies to give the patient.