4A20.0/D89.9 Adult-onset immunodeficiency



Adult-onset immunodeficiency is a rare disorder caused by a weakened immune system. It is most commonly caused by genetic mutations, but can also be caused by certain infections, medications, or environmental factors. In rare cases, it can be caused by an autoimmune disorder.


Diagnosis of adult-onset immunodeficiency is typically made through a combination of physical examination, laboratory tests, and imaging. These tests can include a complete blood count, chest x-ray, and other imaging tests such as PET scans or CT scans.

Differential diagnosis

Differential diagnosis of adult-onset immunodeficiency may include other immunodeficiency disorders, such as primary immunodeficiency disorders, secondary immunodeficiency disorders, or autoimmune disorders.


Treatment for adult-onset immunodeficiency depends on the underlying cause. Common treatments include antibiotics, antivirals, immunosuppressants, and immune-modulating drugs. In some cases, a bone marrow transplant may be necessary.


The prognosis for adult-onset immunodeficiency depends on the underlying cause. In some cases, the disorder may be manageable with medication, while in others it may be more serious and require more aggressive treatments. In general, the prognosis is good with early diagnosis and appropriate treatment.

How medically accurate was this information?

Click on a star to rate it

Average rating 0 / 5. Vote count: 0

No votes so far! Be the first to rate this post.

DISCLAIMER: Please note that all explAInations are generated by AI and are not fact checked by a medical professional. ICD ExplAIned do not assume liability for any injuries or harm based on the use of this medical information.