ICD-9 Diagnosis Code 279.49

Autoimmune disease NEC

Diagnosis Code 279.49

ICD-9: 279.49
Short Description: Autoimmune disease NEC
Long Description: Autoimmune disease, not elsewhere classified
This is the 2014 version of the ICD-9-CM diagnosis code 279.49

Code Classification
  • Endocrine, nutritional and metabolic diseases, and immunity disorders (240–279)
    • Other metabolic disorders and immunity disorders (270-279)
      • 279 Disorders involving the immune mechanism

Information for Medical Professionals

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The ICD-10 and ICD-9 GEMs are used to facilitate linking between the diagnosis codes in ICD-9-CM and the new ICD-10-CM code set. The GEMs are the raw material from which providers, health information vendors and payers can derive specific applied mappings to meet their needs.

  • Addison's disease due to autoimmunity
  • Antiphospholipid syndrome
  • Antisynthetase syndrome
  • Autoimmune connective tissue disorder
  • Autoimmune disease
  • Autoimmune disorder of inner ear
  • Autoimmune encephalitis
  • Autoimmune endocrine disease
  • Autoimmune enteropathy
  • Autoimmune factor VIII deficiency
  • Autoimmune hypophysitis
  • Autoimmune hypothyroidism
  • Autoimmune inflammation of skeletal muscle
  • Autoimmune leukopenia
  • Autoimmune liver disease
  • Autoimmune neutropenia
  • Autoimmune primary ovarian failure
  • Autoimmune reaction
  • Autoimmune reaction mediated by antibody to tissue element with complement
  • Autoimmune reaction mediated by antibody to tissue element without complement
  • Autoimmune reaction mediated by B cells
  • Autoimmune reaction mediated by cell-mediated immunity
  • Autoimmune reaction mediated by immune complex
  • Autoimmune reaction mediated by T cells
  • Autoimmune reaction, specific organ or cell type
  • Autoimmune skin disease
  • Eosinophilic spongiosis
  • Induced autoimmune reaction
  • Insulin autoimmune syndrome
  • Lung disorder due to autoimmune disorder
  • Pediatric autoimmune neuropsychiatric disorder associated with streptococcal infection
  • Polymyositis associated with autoimmune disease

Index of Diseases and Injuries
References found for the code 279.49 in the Index of Diseases and Injuries:

Information for Patients

Autoimmune Diseases

Your body's immune system protects you from disease and infection. But if you have an autoimmune disease, your immune system attacks healthy cells in your body by mistake. Autoimmune diseases can affect many parts of the body.

No one is sure what causes autoimmune diseases. They do tend to run in families. Women - particularly African-American, Hispanic-American, and Native-American women - have a higher risk for some autoimmune diseases.

There are more than 80 types of autoimmune diseases, and some have similar symptoms. This makes it hard for your health care provider to know if you really have one of these diseases, and if so, which one. Getting a diagnosis can be frustrating and stressful. Often, the first symptoms are fatigue, muscle aches and a low fever. The classic sign of an autoimmune disease is inflammation, which can cause redness, heat, pain and swelling.

The diseases may also have flare-ups, when they get worse, and remissions, when symptoms get better or disappear. Treatment depends on the disease, but in most cases one important goal is to reduce inflammation. Sometimes doctors prescribe corticosteroids or other drugs that reduce your immune response.

  • Autoimmune disorders
  • Complement

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