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Diagnosis Letter Template with Examples

Dr. Claire Dave

A physician with over 10 years of clinical experience, she leads AI-driven care automation initiatives at S10.AI to streamline healthcare delivery.

TL;DR Elevate your clinical documentation with our comprehensive guide to writing effective diagnosis letters. Discover essential components, find adaptable templates and examples, and learn how AI-powered tools like S10.AI can streamline the process, saving you time and enhancing patient care.
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Mastering the Diagnosis Letter: A Clinician's Guide with Templates and Examples

What is a Diagnosis Letter?

A diagnosis letter is a formal medical document prepared by a qualified healthcare professional to officially confirm a patient's medical condition. Also known as a "proof of diagnosis letter," it is based on a thorough evaluation, including clinical observations, diagnostic tests, and the clinician's expert judgment. It serves as a critical communication tool between healthcare providers, patients, and third parties such as employers, insurance companies, and educational institutions.

 

Why is a Diagnosis Letter Important?

A well-crafted diagnosis letter is more than a formality; it’s a vital tool that can significantly impact a patient’s life. Here’s why these letters matter:

  • Facilitates Medical Leave and Accommodations: Provides necessary documentation for patients to request medical leave from work or academic accommodations at school.
  • Supports Insurance Claims: Often required by insurance providers to process claims for treatments and procedures.
  • Ensures Continuity of Care: Serves as a reference for other healthcare professionals, ensuring alignment in patient care.
  • Legal Documentation: Acts as evidence in legal proceedings to support a patient’s case.

 

Key Components of a Diagnosis Letter

To ensure clarity, comprehensiveness, and professionalism, a diagnosis letter should include the following components:

Patient Information

Clearly identify the patient at the beginning of the letter. Include their full name, date of birth, and contact information to avoid confusion.

Provider Information

Include your full name, title, medical license number, and the name and address of your clinic or hospital to establish authority.

Date of Diagnosis

Specify the date the diagnosis was made to establish a clear timeline of the patient’s condition and treatment.

The Diagnosis

State the medical diagnosis clearly and concisely, avoiding overly technical jargon that may confuse non-medical readers.

Basis for the Diagnosis

Briefly explain the symptoms, clinical findings, and diagnostic tests (e.g., lab results, imaging studies) used to arrive at the diagnosis, providing credibility and context.

Impact of the Condition

Describe how the condition affects the patient’s daily life, including their ability to work or attend school, especially for accommodation or leave requests.

Treatment Plan and Recommendations

Outline the recommended treatment plan, including medications, therapies, or lifestyle changes, and suggest specific accommodations if applicable.

Patient Consent and Confidentiality

Include a statement affirming patient consent for sharing medical information, demonstrating a commitment to privacy and confidentiality.

 

Diagnosis Letter Templates and Examples

Below are templates and examples to guide you in writing effective diagnosis letters:

 

General Diagnosis Letter Template

[Your Name, Credentials]


[Your Clinic/Hospital Name]


[Your Clinic/Hospital Address]


[Your Phone Number]


[Your Medical License Number]

[Date]

To Whom It May Concern,

This letter certifies that I am the treating physician for [Patient's Full Name], born on [Patient's Date of Birth].

[Patient's Full Name] was diagnosed with [Medical Diagnosis] on [Date of Diagnosis]. This diagnosis was based on [briefly describe the basis for the diagnosis, e.g., clinical evaluation, lab tests, imaging results].

Due to this condition, [Patient's Full Name] experiences [describe the symptoms and their impact on daily life, work, or school].

The recommended treatment plan includes [outline the treatment plan and any recommended accommodations].

Please contact me for any further information.

Sincerely,


[Your Signature]


[Your Typed Name]

 

Example 1: Diagnosis Letter for Medical Leave

Dr. Emily Carter, MD


Community Health Clinic


123 Main Street, Anytown, USA


(555) 123-4567


License #: 12345

August 5, 2025

To Whom It May Concern,

This letter certifies that I am the treating physician for John Smith, born on July 15, 1985.

Mr. Smith was diagnosed with Severe Anxiety and Panic Disorder on July 20, 2025. This diagnosis was made after a comprehensive psychiatric evaluation and a review of his symptoms, which include recurrent panic attacks, persistent worry, and difficulty concentrating.

Due to this condition, Mr. Smith is currently unable to perform his work duties. He requires a medical leave of absence to focus on his treatment, which includes therapy and medication management.

I recommend a medical leave of four weeks, starting from August 6, 2025.

Please contact me for any further information.

Sincerely,


[Dr. Emily Carter’s Signature]


Dr. Emily Carter, MD

 

Example 2: Diagnosis Letter for School Accommodations

Dr. David Chen, PhD


Child Development Center


456 Oak Avenue, Anytown, USA


(555) 987-6543


License #: 67890

August 5, 2025

To Whom It May Concern,

This letter provides a medical diagnosis for Jane Doe, born on September 1, 2010.

Jane was diagnosed with Attention-Deficit/Hyperactivity Disorder (ADHD), Inattentive Type, on August 1, 2025. The diagnosis was based on a comprehensive psychological evaluation, including standardized testing and parent/teacher rating scales.

Jane’s ADHD significantly impacts her ability to focus in a classroom setting, organize assignments, and complete work in a timely manner.

To support her academic success, I recommend the following accommodations:

  • Preferential seating, away from distractions
  • Extended time on tests and assignments
  • Use of a planner to track assignments
  • Regular check-ins with a school counselor

Please contact me for any questions.

Sincerely,


[Dr. David Chen’s Signature]


Dr. David Chen, PhD

 

Streamline Your Clinical Documentation with S10.AI

Creating thorough and accurate clinical documentation, such as diagnosis letters and SOAP notes, is essential for high-quality patient care but can be time-consuming. AI-powered tools like S10.AI can significantly streamline this process.

How AI-Powered Tools Improve Documentation

Artificial intelligence is transforming healthcare documentation by:

  • Reducing Administrative Burden: Automating letter and note generation frees up time for clinicians to focus on patients.
  • Improving Accuracy: AI ensures all necessary components are included, minimizing errors or omissions.
  • Enhancing Clarity: AI translates complex medical terminology into clear language for non-medical readers.

Save Time and Enhance Quality with S10.AI

S10.AI’s CRUSH platform leverages AI to automate the creation of SOAP notes and other clinical documentation. By recording patient encounters, CRUSH generates accurate, comprehensive notes in a fraction of the time, improving both efficiency and documentation quality.


 


Frequently Asked Questions (FAQs) About Diagnosis Letters





1. Who is qualified to write a medical diagnosis letter?


A medical diagnosis letter must be written by a licensed healthcare professional qualified to diagnose and treat the patient’s specific condition. This includes:


  • Physicians (MD, DO)
  • Specialists (e.g., cardiologists, psychiatrists, oncologists)
  • Physician assistants (PAs)
  • Advanced practice registered nurses (APRNs)


The provider must have a treating relationship with the patient and have conducted a thorough evaluation. The letter should include the provider’s full name, title, and medical license number for authenticity.





2. What essential information must be included in a diagnosis letter?


A comprehensive diagnosis letter should be clear, concise, and include:


  • Provider’s Information: Official letterhead with name, credentials, clinic address, and contact details.
  • Patient’s Information: Full name and date of birth.
  • Date of Diagnosis: The date the diagnosis was formally made.
  • Clear Diagnosis: The medical condition stated in understandable terms, avoiding excessive jargon.
  • Basis for Diagnosis: A brief summary of clinical findings, symptoms, or test results.
  • Impact on Functioning: How the condition affects the patient’s daily activities, work, or schooling.
  • Signature: The provider’s official signature to authenticate the document.


Including these elements ensures the letter’s acceptance by employers, schools, or insurance companies.





3. Can a patient request a diagnosis letter for mental health conditions like anxiety or ADHD?


Yes, patients can request diagnosis letters for mental health conditions, such as anxiety or ADHD, often to secure academic accommodations or medical leave. The letter, written by a qualified mental health professional (e.g., psychiatrist, psychologist, or licensed therapist), follows the same structure as other diagnosis letters. It should clearly state the diagnosis, its basis, functional impairments, and recommended accommodations.





4. How can I write a diagnosis letter faster without sacrificing quality?


AI-powered clinical documentation tools, like S10.AI’s AI scribe, can streamline the process. These tools capture patient encounter conversations and auto-generate a structured, clinically accurate draft (e.g., SOAP note or summary) containing patient history, symptoms, diagnosis, and treatment plan. Clinicians can review, edit, and format the output, saving time while maintaining quality.





5. Is it acceptable to use a template for a diagnosis letter?


Yes, using a template is highly effective and recommended. Templates ensure consistent inclusion of all necessary legal and informational components, reducing the risk of rejection. They can be customized for general use or specific purposes (e.g., medical leave, academic accommodations). AI tools like S10.AI can be trained to populate templates automatically, enhancing efficiency and consistency.


 


Conclusion

A well-written diagnosis letter is a powerful tool that helps patients access necessary care, accommodations, and support. By following the guidelines and examples provided, you can create professional, effective diagnosis letters that meet clinical documentation standards.

Ready to elevate your clinical documentation? Try CRUSH by S10.AI for accurate and effortless SOAP note automation.

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People also ask

How can I structure a medical diagnosis letter for a patient that is both comprehensive for specialist referrals and clear for them to understand?

To write a medical diagnosis letter that effectively serves both specialists and patients, structure it with clarity and precision. Begin with the patient's full name, date of birth, and the examination date. Clearly state your name, credentials, and practice information. Present the clinical diagnosis using standardized terminology (like ICD-10 codes) for the specialist, but also explain it in simple terms for the patient. Detail the clinical findings and diagnostic methods used to arrive at the diagnosis. Crucially, describe how the condition impacts the patient's daily activities or work functions, which provides essential context. Conclude with the recommended treatment plan, any necessary accommodations, and a statement confirming patient consent for sharing the information. Adopting a clear, structured template for these letters can significantly streamline the process. Explore how AI-powered tools can help you automatically generate well-structured and compliant diagnosis letters from your clinical notes.

What key information must be included in a diagnosis letter for an employee's workplace accommodation request to be effective?

When writing a diagnosis letter to support a patient's request for workplace accommodations, focus on the functional impact of the medical condition. While you must state the diagnosis clearly, it is more critical to describe the patient's specific limitations. For instance, instead of just stating "chronic back pain," detail the inability to sit for more than 60 minutes or lift objects heavier than 15 pounds. Outline specific, actionable accommodations, such as an ergonomic chair, modified work schedule, or reduced physical tasks. It is vital to connect the diagnosis directly to the requested accommodations, explaining why they are medically necessary for the patient to perform their job duties. Ensure the letter includes your professional credentials and contact information for verification. Consider implementing systems that help you capture these functional details during the patient encounter, ensuring your documentation is robust and fit for purpose.

My patient needs a diagnosis letter for their insurance claim. What phrasing and details will best support their claim and prevent delays?

To write a diagnosis letter that effectively supports an insurance claim, you must emphasize the medical necessity of all treatments, tests, and medications. Use precise, evidence-based language. Clearly state the diagnosis and include the date of onset and the key clinical findings that confirm it. For each recommended intervention, from physical therapy to prescription medication, explicitly state why it is medically necessary for managing the patient's condition. For example, "Physical therapy is medically necessary to restore range of motion and prevent long-term disability." Avoid vague descriptions and instead provide objective data where possible (e.g., "restricted range of motion of 20 degrees in the left shoulder"). Using a consistent and detailed template for these letters can help ensure you include all the necessary information to support your patient's claim. Learn more about how AI scribes can help you capture and organize these critical details during the patient visit, making the creation of such letters faster and more accurate.

Diagnosis Letter Template with Examples