Acanthamoeba infection
Amebiasis cutis
Ant sting
Arachnidism
Bakers itch
Balamuthia infection
Bedbug infestation (bedbug bite, cimicosis)
Bee and wasp stings
Blister beetle dermatitis
Bombardier beetle burn
Bristleworm sting 
Centipede bite
Cheyletiella dermatitis
Chigger bite
Coolie itch
Copra itch
Coral dermatitis
Creeping eruption (cutaneous larva migrans)
Cutaneous leishmaniasis (Aleppo boil, Baghdad boil, bay sore, Biskra button, Chiclero ulcer, Delhi boil, Kandahar sore, Lahore sore, leishmaniasis tropica, oriental sore, pian bois, uta)
Cysticercosis cutis
Demodex folliculitis, usually caused by the Demodex folliculorum mite
Dogger Bank itch
Dracunculiasis (dracontiasis, guinea worm disease, Medina worm)
Echinococcosis (hydatid disease)
Elephantiasis tropica (elephantiasis arabum)
Elephant skin
Enterobiasis (oxyuriasis, pinworm infection, seatworm infection)
Erisipela de la costa
Feather pillow dermatitis
Funnel web spider bite
Gamasoidosis
Gnathostomiasis (larva migrans profundus)
Grain itch (barley itch, mattress itch, prairie itch, straw itch)
Grocers itch
Head lice infestation (cooties, pediculosis capitis)
Hookworm disease (ancylostomiasis, ground itch, necatoriasis, uncinariasis)
Human trypanosomiasis
Hydroid dermatitis
Irukandji syndrome
Jellyfish dermatitis
Ked itch
Larva currens
Latrodectism (widow spider bite)
Leech bite
Leopard skin
Lepidopterism (Caripito itch, caterpillar dermatitis, moth dermatitis)
Lizard skin
Loaiasis (Calabar swelling, fugitive swelling, loa loa, tropical swelling)
Loxoscelism (brown recluse spider bite, necrotic cutaneous loxoscelism)
Mal morando
Millipede burn
Mosquito bite
Mucocutaneous leishmaniasis (espundia, leishmaniasis americana)
Myiasis
Nairobi fly dermatitis (Kenya fly dermatitis, Nairobi eye)
Nematode dermatitis
Norwegian scabies (crusted scabies) 
Onchocerciasis
Ophthalmia nodosa
Paederus dermatitis
Pediculosis corporis (pediculosis vestimenti, Vagabonds disease)
Pediculosis pubis (crabs, phthirus pubis, phthirus pubis, pubic lice)
Pneumocystosis (often classified as fungal)
Portuguese man-of-war dermatitis
Post-kala-azar dermal leishmaniasis (post-kala-azar dermatosis)
Protothecosis
Pulicosis (flea bites)
Reduviid bite
Scabies (itch mite infestation, seven-year itch)
Scorpion sting
Sea anemone dermatitis
Seabathers eruption (sea lice)
Sea urchin injury
Seaweed dermatitis
Snake bite
Sowda
Sparganosis
Spider bite
Stingray injury
Swimmers itch (cercarial dermatitis, schistosome cercarial dermatitis) 
Tarantula bite
Tick bite
Toxoplasmosis
Trichinosis
Trichomoniasis
Tungiasis (bicho de pie, chigoe flea bite, jigger bite, nigua, pique)
Visceral leishmaniasis (dumdum fever, kala-azar)
Visceral schistosomiasis (bilharziasis)
Viscerotropic leishmaniasis
Wheat warehouse itch

Virus-related
Virus-related cutaneous conditions are caused by two main groups of viruses–DNA and RNA types–both of which are obligatory intracellular parasites.
Albinism–black lock–cell migration disorder of the neurocytes of the gut–deafness syndrome (ABCD syndrome)
Albinism–deafness syndrome (Woolf syndrome, Ziprkowski–Margolis syndrome)
Alezzandrini syndrome
Argyria
Arsenic poisoning 
Berlin syndrome
Canthaxanthin
Chédiak–Higashi syndrome
Chrysiasis
Cross–McKusick–Breen syndrome (Cross syndrome, oculocerebral-hypopigmentation syndrome)
Dermatopathia pigmentosa reticularis (dermatopathia pigmentosa reticularis hyperkeratotica et mutilans, dermatopathia pigmentosa reticularis hypohidotica et atrophica, dermatopathic pigmentosa reticularis)
Dyschromatosis symmetrica hereditaria (reticulate acropigmentation of Dohi, symmetrical dyschromatosis of the extremities)
Dyschromatosis universalis hereditaria
Elejalde syndrome (Griscelli syndrome type 1)
Eruptive hypomelanosis
Familial progressive hyperpigmentation
Galli–Galli disease
Griscelli syndrome type 2 (partial albinism with immunodeficiency)
Griscelli syndrome type 3
Hemochromatosis (bronze diabetes)
Hemosiderin hyperpigmentation
Hermansky–Pudlak syndrome
Idiopathic guttate hypomelanosis (leukopathia symmetrica progressiva)
Iron metallic discoloration
Klein–Waardenburg syndrome
Lead poisoning
Leukoderma
Melanoma-associated leukoderma
Melasma (chloasma faciei, mask of pregnancy)
Mukamel syndrome
Necklace of Venus
Nevus anemicus 
Nevus depigmentosus (nevus achromicus)
Ocular albinism
Oculocutaneous albinism
Pallister–Killian syndrome
Periorbital hyperpigmentation
Photoleukomelanodermatitis of Kobori
Phylloid hypomelanosis
Piebaldism
Pigmentatio reticularis faciei et colli
Pityriasis alba
Poikiloderma of Civatte
Poikiloderma vasculare atrophicans
Postinflammatory hyperpigmentation (postinflammatory hypermelanosis)
Postinflammatory hypopigmentation
Progressive macular hypomelanosis
Quadrichrome vitiligo
Reticular pigmented anomaly of the flexures (dark dot disease, Dowling–Degos disease)
Reticulate acropigmentation of Kitamura
Revesz syndrome
Riehl melanosis
Scratch dermatitis (flagellate pigmentation from bleomycin)
Segmental vitiligo
Shah–Waardenburg syndrome
Shiitake mushroom dermatitis (flagellate mushroom dermatitis, mushroom workers disease, shiitake-induced toxicoderma)
Tar melanosis (melanodermatitis toxica lichenoides)
Tietz syndrome
Titanium metallic discoloration
Transient neonatal pustular melanosis (transient neonatal pustulosis, lentigines neonatorum)
Trichrome vitiligo
Vagabonds leukomelanoderma
Vasospastic macule
Vitiligo
Vitiligo ponctué
Vogt–Koyanagi–Harada syndrome
Waardenburg syndrome
Wende–Bauckus syndrome (Pegum syndrome)
Woronoffs ring
X-linked reticulate pigmentary disorder (familial cutaneous amyloidosis, Partington amyloidosis, Partington cutaneous amyloidosis, Partington syndrome type II, reticulate pigmentary disorder, X-linked reticulate pigmentary disorder with systemic manifestations)
Yemenite deaf-blind hypopigmentation syndrome

Drug eruptions
Drug eruptions are adverse drug reactions that present with cutaneous manifestations.