Other immunodeficiencies (D84)
Clinical Information
Livedo Reticularis - A condition characterized by a reticular or fishnet pattern on the skin of lower extremities and other parts of the body. This red and blue pattern is due to deoxygenated blood in unstable dermal blood vessels. The condition is intensified by cold exposure and relieved by rewarming.
Livedoid Vasculopathy - A rare cutaneous thrombotic disease due to occlusion of dermal vessels. It is characterized by purpuric maculae and ulcerations especially during summer which form scars called atrophie blanche. It is more associated with other syndromes (e.g., PROTEIN C DEFICIENCY; HYPERHOMOCYSTEINEMIA). Livedo reticularis with systemic involvement and stroke is SNEDDON SYNDROME.
Sneddon Syndrome - A systemic non-inflammatory arteriopathy primarily of middle-aged females characterized by the association of LIVEDO RETICULARIS, multiple thrombotic CEREBRAL INFARCTION; CORONARY DISEASE, and HYPERTENSION. Elevation of antiphospholipid antibody titers (see also ANTIPHOSPHOLIPID SYNDROME), cardiac valvulopathy, ISCHEMIC ATTACK, TRANSIENT; SEIZURES; DEMENTIA; and chronic ischemia of the extremities may also occur. Pathologic examination of affected arteries reveals non-inflammatory adventitial fibrosis, thrombosis, and changes in the media. (From Jablonski, Dictionary of Syndromes & Eponymic Diseases, 2d ed; Adams et al., Principles of Neurology, 6th ed, p861; Arch Neurol 1997 Jan;54(1):53-60)
Diseases of the blood and blood-forming organs and certain disorders involving the immune mechanism (D50–D89)
Certain disorders involving the immune mechanism (D80-D89)
D84 Other immunodeficiencies
- D84.0 Lymphocyte function antigen-1 [LFA-1] defect
- D84.1 Defects in the complement system
D84.8 Other specified immunodeficiencies
- D84.81 Immunodeficiency due to conditions classified elsewhere
D84.82 Immunodeficiency due to drugs and external causes
- D84.821 Immunodeficiency due to drugs
- D84.822 Immunodeficiency due to external causes
- D84.89 Other immunodeficiencies
- D84.9 Immunodeficiency, unspecified
Other immunodeficiencies (D84)