Arthropod Bites, Stings, and Cutaneous Infections Cutaneous Reactions to Arthropod Bites Arthropods are defined by an exoskeleton, segmented body, and jointed appendages. Four of 9 classes of arthropods cause local…
Skin Signs of Vascular Insufficiency Atherosclerosis, Arterial Insufficiency, andAtheroembolization ICD-9: 440 ICD-10: I70 Atherosclerosis obliterans (ASO), especially of the lower extremities, is associated with spectrum of cutaneous findings of slowly…
Pigmentary Disorders Normal skin color is composed of a mixture of four biochromes, namely, (1) reduced hemoglobin (blue), (2) oxyhemoglobin (red), (3) carotenoids (yellow; exogenous from diet), and (4) melanin…
Miscellaneous Epidermal Disorders Acanthosis Nigricans (AN) ICD-9: 701.2 ICD-10: L 83 Asymmetric velvety thickening and hyperpigmentation of the skin, chiefly on the neck, axilla, groins, and other body folds. May…
Skin Diseases in Organ and Bone Marrow Transplantation Organ transplant recipients are chronically immunosuppressed and their T cell function is impaired. Ensuing diseases are mostly infections and are similar to…
Neutrophil-Mediated Diseases Pyoderma Gangrenosum (PG) ICD-9: 686.01 ICD-10:L88 PG is an idiopathic, either acute or chronic, severely debilitating skin disease. It is characterized by neutrophilic infiltration, destruction of tissue, and…
Skin Signs of Renal Insufficiency Classification of Skin Changes Acute renal failure Edema Uremic frost (deposition of urea crystals on skin surface in severe uremia) Chronic renal failure Edema Uremic…
Disorders of Psychiatric Etiology Classification of Disorders of Psychiatric Etiology • Dysmorphic syndrome • Delusions of parasitosis • Compulsive habits • Neurotic excoriations • Trichotillomania • Factitious syndromes • Cutaneous…
Severe and Life-Threatening Skin Eruptions in the Acutely III Patient Exfoliative Erythroderma Syndrome (EES) ICD-9: 695.9 EES is a serious, at times life-threatening, reaction pattern of the skin characterized by…
Genetic Diseases Pseudoxanthoma Elasticum ICD-9: 757.39 ICD-10: Q82.810 Pseudoxanthoma elasticum (PXE) is a serious hereditary disorder of connective tissue that involves the elastic tissue in the skin, blood vessels, and…
