African histoplasmosis
Alternariosis
Antibiotic candidiasis (iatrogenic candidiasis)
Black piedra
Candidal intertrigo
Candidal onychomycosis
Candidal paronychia
Candidal vulvovaginitis
Candidid
Chromoblastomycosis (chromomycosis, cladosporiosis, Fonsecas disease, Pedrosos disease, phaeosporotrichosis, verrucous dermatitis)
Chronic mucocutaneous candidiasis
Coccidioidomycosis (California disease, desert rheumatism, San Joaquin Valley fever, valley fever)
Congenital cutaneous candidiasis
Cryptococcosis
Dermatophytid
Diaper candidiasis
Disseminated coccidioidomycosis (coccidioidal granuloma)
Distal subungual onychomycosis
Entomophthoromycosis
Erosio interdigitalis blastomycetica 
Favus
Fungal folliculitis (majocchi granuloma)
Fusariosis
Geotrichosis
Granuloma gluteale infantum
Histoplasmosis (cave disease, Darlings disease, Ohio Valley disease, reticuloendotheliosis)
Hyalohyphomycosis
Kerion
Lobomycosis (keloidal blastomycosis, lacaziosis, Lobos disease)
Mucormycosis
Mycetoma (Madura foot, maduromycosis)
North American blastomycosis (blastomycetic dermatitis, blastomycosis, Gilchrists disease)
Onychomycosis (dermatophytic onychomycosis, ringworm of the nail, tinea unguium)
Oral candidiasis (thrush)
Otomycosis
Perianal candidiasis
Perlèche (angular cheilitis)
Phaeohyphomycosis
Piedra (trichosporosis)
Pityrosporum folliculitis
Primary cutaneous aspergillosis
Primary cutaneous coccidioidomycosis
Primary cutaneous histoplasmosis
Primary pulmonary coccidioidomycosis
Primary pulmonary histoplasmosis
Progressive disseminated histoplasmosis
Proximal subungual onychomycosis
Rhinosporidiosis
South American blastomycosis (Brazilian blastomycosis, paracoccidioidal granuloma, paracoccidioidomycosis)
Sporotrichosis (rose-gardeners disease)
Systemic candidiasis
Tinea barbae (barbers itch, ringworm of the beard, tinea sycosis) 
Tinea capitis (herpes tonsurans, ringworm of the hair, ringworm of the scalp, scalp ringworm, tinea tonsurans)
Tinea corporis (ringworm, tinea circinata, tinea glabrosa)
Tinea corporis gladiatorum
Tinea cruris (crotch itch, eczema marginatum, gym itch, jock itch, ringworm of the groin)
Tinea faciei
Tinea imbricata (tokelau)
Tinea incognito
Tinea manuum
Tinea nigra (superficial phaeohyphomycosis, tinea nigra palmaris et plantaris)
Tinea pedis (athletes foot, ringworm of the foot)
Tinea versicolor (dermatomycosis furfuracea, pityriasis versicolor, tinea flava)
White piedra
White superficial onychomycosis
Zygomycosis (phycomycosis)

Parasitic infestations, stings, and bites
Parasitic infestations, stings, and bites in humans are caused by several groups of organisms belonging to the following phyla: Annelida, Arthropoda, Bryozoa, Chordata, Cnidaria, Cyanobacteria, Echinodermata, Nemathelminthes, Platyhelminthes, and Protozoa.
Acral nevus (melanocytic nevus of acral skin, melanocytic nevus with intraepidermal ascent of cells)
Amelanotic blue nevus (hypomelanotic blue nevus) 
Balloon cell nevus
Bannayan–Riley–Ruvalcaba syndrome
Beckers nevus (Beckers melanosis, Beckers pigmentary hamartoma, nevoid melanosis, pigmented hairy epidermal nevus)
Benign melanocytic nevus (banal nevus, common acquired melanocytic nevus, mole, nevocellular nevus, nevocytic nevus)
Blue nevus (blue neuronevus, dermal melanocytoma, nevus bleu)
Blue nevus of Jadassohn–Tièche (common blue nevus, nevus ceruleus)
Carney complex (LAMB syndrome, NAME syndrome)
Cellular blue nevus
Centrofacial lentiginosis
Congenital melanocytic nevus
Deep penetrating nevus
Dysplastic nevus (atypical mole, atypical nevus, B-K mole, Clarks nevus, dysplastic melanocytic nevus, nevus with architectural disorder)
Dysplastic nevus syndrome (B-K mole syndrome, familial atypical multiple mole–melanoma syndrome, familial melanoma syndrome)
Ephelis (freckle)
Epithelioid blue nevus
Generalized lentiginosis
Giant pigmented nevus (bathing trunk nevus, congenital nevomelanocytic nevus, garment nevus, giant hairy nevus, nevus pigmentosus et pilosus)
Halo nevus (leukoderma acquisitum centrifugum, perinevoid vitiligo, Sutton nevus)
Horis nevus (acquired bilateral nevus of Ota-like macules)
Inherited patterned lentiginosis in black persons
Ink spot lentigo (sunburn lentigo)
Laugier–Hunziker syndrome
Lentigo simplex (simple lentigo)
Malignant blue nevus
Medium-sized congenital nevocytic nevus
Melanoacanthoma
Melanocytic tumors of uncertain malignant potential
Moynahan syndrome
Mucosal lentigines (labial and penile and vulvar melanosis, melanotic macules)
Nevus of Ito (nevus fuscoceruleus acromiodeltoideus)
Nevus of Ota (congenital melanosis bulbi, melanosis bulborum and aberrant dermal melanocytosis, nevus fuscoceruleus ophthalmomaxillaris, oculodermal melanocytosis, oculomucodermal melanocytosis)
Nevus spilus (speckled lentiginous nevus, zosteriform lentiginous nevus)
Partial unilateral lentiginosis (segmental lentiginosis)
Peutz–Jeghers syndrome
Pigmented spindle cell nevus (pigmented spindle cell tumor of Reed, pigmented variant of Spitz nevus)
Pseudomelanoma (recurrent melanocytic nevus, recurrent nevus)
PUVA lentigines
Small-sized congenital nevocytic nevus
Spitz nevus (benign juvenile melanoma, epithelioid and spindle cell nevus, Spitzs juvenile melanoma)
Solar lentigo (lentigo senilis, liver spot, old age spot, senile freckle)

Melanoma
Melanoma is a malignant proliferation of melanocytes and the most aggressive type of skin cancer.