ICD-10-CM Code M35.2

Behcet's disease

Version 2020 Billable Code

Valid for Submission

M35.2 is a billable code used to specify a medical diagnosis of behcet's disease. The code is valid for the year 2020 for the submission of HIPAA-covered transactions. The ICD-10-CM code M35.2 might also be used to specify conditions or terms like arthropathy in behcet's syndrome, arthropathy in behcet's syndrome of multiple sites, arthropathy in behcet's syndrome of the ankle, arthropathy in behcet's syndrome of the ankle and/or foot, arthropathy in behcet's syndrome of the hand, arthropathy in behcet's syndrome of the pelvic region and thigh, etc

Short Description:Behcet's disease
Long Description:Behcet's disease

Index to Diseases and Injuries

The Index to Diseases and Injuries is an alphabetical listing of medical terms, with each term mapped to one or more ICD-10 code(s). The following references for the code M35.2 are found in the index:


The following clinical terms are approximate synonyms or lay terms that might be used to identify the correct diagnosis code:

  • Arthropathy in Behcet's syndrome
  • Arthropathy in Behcet's syndrome of multiple sites
  • Arthropathy in Behcet's syndrome of the ankle
  • Arthropathy in Behcet's syndrome of the ankle and/or foot
  • Arthropathy in Behcet's syndrome of the hand
  • Arthropathy in Behcet's syndrome of the pelvic region and thigh
  • Arthropathy in Behcet's syndrome of the shoulder region
  • Arthropathy in Behcet's syndrome of the spine
  • Behçet's disease affecting oral mucosa
  • Behcet's disease with multisystem involvement
  • Behcet's disease with organ/system involvement
  • Behcet's syndrome
  • Behcet's syndrome, complete type
  • Behcet's syndrome, incomplete type
  • Behcet's syndrome, intestinal type
  • Behcet's syndrome, neurologic type
  • Behcet's syndrome, vascular type
  • Demyelination of central nervous system co-occurrent and due to Behcet disease
  • Iritis in Behcet's syndrome
  • Panuveitis in Behcet's syndrome
  • Penile ulceration due to Behçet's disease
  • Ulcer of penis
  • Ulceration of vulva associated with another disorder
  • Ulceration of vulva in Behcet's disease

Diagnostic Related Groups

The ICD-10 code M35.2 is grouped in the following groups for version MS-DRG V37.0 What are Diagnostic Related Groups?
The Diagnostic Related Groups (DRGs) are a patient classification scheme which provides a means of relating the type of patients a hospital treats. The DRGs divides all possible principal diagnoses into mutually exclusive principal diagnosis areas referred to as Major Diagnostic Categories (MDC).
applicable from 10/01/2019 through 09/30/2020.


Convert M35.2 to ICD-9

  • 136.1 - Behcet's syndrome (Approximate Flag)
  • 136.1 - Behcet's syndrome (Combination Flag)
  • 711.20 - Behcet arthritis-unspec (Combination Flag)

Code Classification

  • Diseases of the musculoskeletal system and connective tissue (M00–M99)
    • Systemic connective tissue disorders (M30-M36)
      • Other systemic involvement of connective tissue (M35)

Code History

  • FY 2016 - New Code, effective from 10/1/2015 through 9/30/2016
    (First year ICD-10-CM implemented into the HIPAA code set)
  • FY 2017 - No Change, effective from 10/1/2016 through 9/30/2017
  • FY 2018 - No Change, effective from 10/1/2017 through 9/30/2018
  • FY 2019 - No Change, effective from 10/1/2018 through 9/30/2019
  • FY 2020 - No Change, effective from 10/1/2019 through 9/30/2020

Information for Patients

Behcet's Syndrome

Behcet's syndrome is a disease that involves vasculitis, which is inflammation of the blood vessels. It causes problems in many parts of the body. The most common symptoms are

  • Sores in the mouth
  • Sores on the sex organs
  • Other skin sores
  • Swelling of parts of the eye
  • Pain, swelling and stiffness of the joints

More serious problems can include meningitis, blood clots, inflammation of the digestive system and blindness.

Doctors aren't sure what causes Behcet's. It is rare in the United States, but is common in the Middle East and Asia. It mainly affects people in their 20s and 30s. Diagnosing Behcet's can take a long time, because symptoms may come and go, and it may take months or even years to have all of the symptoms. There is no cure. Treatment focuses on reducing pain and preventing serious problems. Most people can control symptoms with treatment.

NIH: National Institute of Arthritis and Musculoskeletal and Skin Diseases

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Behçet disease Behçet disease is an inflammatory condition that affects many parts of the body. The health problems associated with Behçet disease result from widespread inflammation of blood vessels (vasculitis). This inflammation most commonly affects small blood vessels in the mouth, genitals, skin, and eyes.Painful mouth sores called aphthous ulcers are usually the first sign of Behçet disease. These sores can occur on the lips, tongue, inside the cheeks, the roof of the mouth, the throat, and the tonsils. The ulcers look like common canker sores, and they typically heal within one to two weeks. About 75 percent of all people with Behçet disease develop similar ulcers on the genitals. These ulcers occur most frequently on the scrotum in men and on the labia in women.Behçet disease can also cause painful bumps and sores on the skin. Most affected individuals develop pus-filled bumps that resemble acne. These bumps can occur anywhere on the body. Some affected people also have red, tender nodules called erythema nodosum. These nodules usually develop on the legs but can also occur on the arms, face, and neck.An inflammation of the eye called uveitis is found in more than half of people with Behçet disease. Eye problems are more common in younger people with the disease and affect men more often than women. Uveitis can result in blurry vision and an extreme sensitivity to light (photophobia). Rarely, inflammation can also cause eye pain and redness. If untreated, the eye problems associated with Behçet disease can lead to blindness.Joint involvement is also common in Behçet disease. Often this affects one joint at a time, with each affected joint becoming swollen and painful and then getting better.Less commonly, Behçet disease can affect the brain and spinal cord (central nervous system), gastrointestinal tract, large blood vessels, heart, lungs, and kidneys. Central nervous system abnormalities can lead to headaches, confusion, personality changes, memory loss, impaired speech, and problems with balance and movement. Involvement of the gastrointestinal tract can lead to a hole in the wall of the intestine (intestinal perforation), which can cause serious infection and may be life-threatening.The signs and symptoms of Behçet disease usually begin in a person's twenties or thirties, although they can appear at any age. Some affected people have relatively mild symptoms that are limited to sores in the mouth and on the genitals. Others have more severe symptoms affecting various parts of the body, including the eyes and the vital organs. The features of Behçet disease typically come and go over a period of months or years. In most affected individuals, the health problems associated with this disorder improve with age.
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