ICD-10 Code for Vitamin deficiency, unspecified- E56. 9- Codify by AAPC.
To accurately assign the ICD-10 code D89. 9, disorder involving the immune mechanism unspecified, or D84. 9, immunodeficiency unspecified, the patient's immunocompromised state should not be attributed to a chronic condition or a prescribed medication therapy.
When your immune system fails to respond adequately to infection, it's called an immunodeficiency, and you may be immunocompromised. People may also suffer from the opposite condition, an overactive immune system that attacks healthy cells as though they were foreign bodies, and that is called an autoimmune response.
Immunocompromise/immunodeficiency is part of the clinical picture in HIV disease, and code B20 captures fully the immunocompromised state.” Fortunately, there is an Excludes1 note under code D84.