What is the performance of the classification neural network for each of the conditions?

To measure the performance of the classification algorithm, we use two metrics: sensitivity and specificity. In the following table, you will find the values for each condition according to ICD-11.

The method we follow to extract those metrics consists on processing a set of images that are different to those used to train the device. In other words: we have our training dataset and our testing dataset. The training dataset is used to train the device, and the testing dataset is used to test it. Thus, the following metrics reflect the results of the internal testing that we perform with our testing dataset. It is worth noting that we always use the same testing dataset, so as to ensure that the algorithm is consistently improving in the right direction with every new version.

Category	Sensitivity (%)	Specificity (%)	ICD-11 code
Abrasion	33.33	99.20	ND56.0&XJ652
Acanthosis nigricans	84.21	99.47	ED51.0
Accessory nipple	100.00	99.84	LB63
Acne	98.79	93.75	ED80.Z
Acneform inflammatory disorder	100.00	99.92	ED81
Acquired deformity of the nail plate	86.36	98.34	EE10
Acquired dermal macular hyperpigmentation	66.67	99.92	ED60.Y
Acral fibrokeratoma	33.33	99.95	2F23.Y
Acral lentiginous melanoma (primary)	71.88	98.61	2C30.3
Acrokeratosis verruciformis of Hopf	50.00	99.92	EC20.Y
Actinic cheilitis	83.33	99.52	EK90.Y
Actinic elastosis	100.00	99.29	EJ20.0
Actinic keratosis	84.95	84.64	EK90.0&XH36H6
Actinic lentigo	61.04	94.69	EJ20.1
Actinic lichen planus	100.00	99.96	EA91.Y
Acute eruptive lichen planus	66.67	99.91	EA91.0
Adnexal carcinoma	66.67	99.88	2C33
Alopecia	91.49	96.91	ED70
Amelanotic malignant melanoma	33.33	99.41	2E63.00
Anetoderma	100.00	99.82	EE41.1
Angiofibroma	17.65	99.42	2E81.0Z
Angiokeratoma	97.30	97.72	EF20.1
Angioma	47.37	98.01	2E81.0Z
Angiosarcoma	100.00	99.45	2B56.1
Annular erythema	30.00	99.47	EB11
Anogenital warts	60.00	98.80	1A95
Aplasia cutis congenita	66.67	99.93	LC60
Arsenical keratosis	66.67	99.86	EK90.Y&XH5NG4
Asteatotic eczema	100.00	99.98	EA84
Atypical intraepidermal melanocytic proliferation	65.22	97.78	2F20.Y
Atypical melanocytic nevus	91.50	86.04	2F20.1
Basal cell carcinoma	93.38	82.76	2C32
Beau lines	100.00	99.76	EE10.1Y
Benign familial pemphigus	50.00	99.97	EC20.2
Benign keratosis	86.76	92.71	ME60.3&XH0S03
Benign lymphocytic infiltration of the skin	66.67	99.54	EE90
Blue nevus	81.63	95.75	2F20.Y
Bullous impetigo	40.00	99.77	1B72.0
Bullous lichen planus	33.33	99.79	EA91.Y
Bullous pemphigoid	66.67	98.93	EB41.0
Burns of external body surface	5.56	98.55	ND9Z
Café au lait spot	68.00	99.80	EC23.0
Candida balanoposthitis	100.00	99.97	1F23.11
Candidosis	28.57	98.48	1F23
Capillaritis	100.00	99.70	EF40.0
Carcinoma	66.67	99.83	2D41
Chancroid	100.00	99.93	1A90
Cheilitis	87.50	99.57	DA00.0
Cherry angioma	100.00	99.45	2F25
Chilblains	0.00	99.81	NF03.0
Chondrodermatitis nodularis	100.00	99.86	AA12
Chromomycosis	100.00	99.92	1F24
Chronic arterial occlusive disease	100.00	99.97	BD4Z
Clear cell acanthoma	0.00	99.68	2F21.Y
Common warts	70.73	87.12	1E80
Complex epidermal hamartoma	93.65	96.52	LC02
Confluent and reticulated papillomatosis (Gougeraud Carteaud syndrome)	70.00	99.76	ED51.Y
Corns or callosities	100.00	99.20	EH92.0
Cutaneous T-cell lymphoma	33.33	99.24	2B0Z
Cutaneous and subcutaneous xanthomata	66.67	99.53	EB90.2
Cutaneous cyst	93.44	91.84	EK70
Cutaneous insect bite reaction	75.10	95.87	EK50.0
Cutaneous larva migrans	100.00	99.59	1F68.2
Cutaneous leishmaniasis	83.33	99.64	1F54.1
Cutaneous lupus erythematosus	63.64	95.35	EB5Z
Cutaneous melanoma	89.69	82.02	2C30
Cutaneous metastasis	66.67	99.81	2E08
Cutaneous mucinosis	50.00	99.65	EB90.1
Cutaneous myiasis	100.00	99.94	1G01.3
Cutaneous non-tuberculous mycobacterial infection	0.00	99.45	1B21.2
Cutaneous sarcoidosis	23.53	99.40	4B20.5
Cutaneous tuberculosis	66.67	99.79	1B12.8
Cutis laxa	100.00	99.96	EE41.0
Darier's disease	100.00	98.81	EC20.2
Dermal melanocytosis	100.00	99.00	LC10
Dermatitis herpetiformis	0.00	98.74	EB44
Dermatofibroma	90.84	89.26	2F23.0
Dermatofibrosarcoma protuberans	33.33	99.38	2B53.Y
Dermatomyositis	42.11	98.79	4A41.0
Dermatosis neglecta	100.00	99.79	ED5Y
Dermographism	80.00	99.94	EB01.0
Developmental venous malformations involving the skin	100.00	99.47	LC51
Diffuse inflammatory erythema	9.09	99.88	EB10
Diffuse palmoplantar keratoderma	66.67	99.99	EC20.30
Digital myxoid pseudocyst	100.00	99.74	EK70.2
Dissecting cellulitis	83.33	99.93	ED70.51
Drug eruption	29.17	97.50	EH6Z
Dyshidrotic eczema	26.32	99.39	EA85.0
Dystrophic calcification of the skin	33.33	99.81	EB90.40
Dystrophic epidermolysis bullosa	100.00	99.77	EC32
Early cutaneous Lyme borreliosis	25.00	99.67	1C1G.0
Early syphilis	33.33	98.71	1A61
Ecchymosis	68.00	98.54	ND56.0
Eccrine poroma	0.00	99.73	2F22
Ecthyma	60.00	99.62	1B73
Eczematous dermatitis	89.10	87.90	EA89
Enteroviral vesicular stomatitis	33.33	98.85	1F05.0
Eosinophilic pustular folliculitis	100.00	99.95	ED9Y
Epidermal nevus	60.61	98.24	LC00.0
Epidermodysplasia verruciformis	33.33	99.94	1E83
Epidermolysis bullosa	50.00	98.02	EC3Z
Erysipeloid	100.00	99.95	1B96
Erythema ab igne	76.47	99.79	EJ10
Erythema infectiosum	40.00	99.92	1F04
Erythema multiforme	63.16	98.86	EB12
Erythroderma	100.00	99.97	EB10
Erythrokeratodermia progressiva symmetrica	66.67	99.95	EC20.0Y
Excoriation disorder	66.67	98.03	6B25.1
Extramammary Paget disease of skin	66.67	99.82	2E64.1, 2E67.11
Fibroepithelial polyp	76.47	95.01	EK71.0
Flexural and intertriginous psoriasis	66.67	99.62	EA90.52
Focal palmoplantar keratoderma	100.00	99.95	EC20.31
Follicular lichen planus	25.00	99.77	EA91.2
Folliculitis	53.91	96.90	ED9Y
Folliculitis keloidalis	100.00	99.95	EE60.Y
Foot ulcer	97.13	99.00	BD54
Fordyce spots	66.67	99.94	ED91.0
Fox Fordyce disease	100.00	99.94	ED92.1
Freckles	0.00	99.91	ED61.0
Furuncle	43.75	99.85	1B75.0
Generalised pustular psoriasis	85.75	95.06	EA90.40
Geographic tongue	75.00	99.90	DA03.1
Gout	50.00	99.97	FA25
Granuloma annulare	65.38	97.70	EE80.0
Granulomatosis with polyangiitis	80.00	99.88	4A44.A1
Green nail syndrome	66.67	99.96	EE12.Y
Grover's disease	100.00	99.60	ED5Y
Guttate psoriasis	27.27	98.72	EA90.1
Haemangioma	68.69	93.26	2E81.0
Hailey-Hailey disease	100.00	99.34	EC20.2
Halo nevus	100.00	99.48	2F20.Y
Hereditary haemorrhagic telangiectasia	100.00	99.92	LA90.00
Herpes simplex	58.93	97.64	1F00
Hidradenitis suppurativa	81.25	99.42	ED92.0
Hidrocystoma	100.00	99.76	EK70.3
Hydroa vacciniforme	100.00	99.99	EJ30.Y
Ichthyosis	83.33	99.27	ED50.Z
Idiopathic guttate hypomelanosis	47.06	99.95	ED63.Y
IgA vasculitis	50.00	99.86	4A44.92
Impetigo	71.88	97.49	1B72
Infantile acropustulosis	100.00	99.98	EH40.Y
Infantile papular acrodermatitis	100.00	99.72	EA12
Infections of the nail or perionychium	41.67	99.90	EE12
Infestation or insect bite	100.00	99.95	EK50.0
Ingrowing nail	21.43	99.95	EE13.1
Injury to fingernail	64.71	99.89	NC50
Interface dermatitis	33.33	99.94	EB4Y
Intertrigo	100.00	99.51	EK02.20
Intraepidermal squamous cell carcinoma	66.67	97.56	2E64.0
Juvenile plantar dermatosis	100.00	99.91	EH92.Y
Juvenile xanthogranuloma	56.52	99.76	2B31.0
Kaposi sarcoma	48.39	97.90	2B57.Z
Keloid	72.73	99.67	EE60.0
Keloidal acne	60.00	99.37	EE60.Y
Keratoacanthoma	79.07	97.36	2C31.1
Keratoderma palmaris et plantaris	100.00	100.00	ED55
Keratolysis exfoliativa	100.00	99.85	ED53
Keratosis of skin of uncertain or unspecified nature	100.00	99.87	ME60.3
Keratosis pilaris	45.95	98.63	ED56
Leiomyomatosis	100.00	99.78	2F7C
Leprosy	100.00	97.00	1B20
Leukocytoclastic vasculitis	70.00	97.98	4A44.B
Leukonychia	66.67	99.45	EC22.0, EE11.Y
Lichen planus	63.04	96.78	EA91
Lichen sclerosus	50.00	99.64	EB60
Lichen simplex	42.55	98.20	EA83.0
Lichen spinulosus	20.00	99.84	ED5Y
Lichenoid dermatosis	50.00	99.32	EA92
Linear IgA bullous dermatosis	100.00	99.61	EB42
Lipodermatosclerosis	66.67	99.87	BD74.2
Livedoid vasculopathy	82.35	99.54	EF50
Lobular capillary haemangioma	86.24	97.78	2F26
Lymphangioma	42.86	99.44	LA90.10, LA90.11
Lymphangitis	100.00	99.95	BD91
Lymphatic malformation	33.33	99.73	LA90.1
Lymphocytoma cutis	33.33	99.90	EE91
Lymphoedema	100.00	99.91	BD93
Lymphomatoid papulosis	66.67	99.89	2B03.1
Malassezia folliculitis	100.00	98.85	1F2D.1
Mastocytoma	66.67	99.90	2A21.1Y
Melanocytic nevus	95.61	79.54	2F20.Z
Melanonychia	30.00	99.84	EE11.0
Melanosis	90.91	99.50	ED61.1
Melasma	37.04	99.85	ED60.1
Melkersson Rosenthal Syndrome	33.33	99.99	8B88.Y
Merkel cell carcinoma	85.71	99.77	2C34
Metastatic malignant neoplasm involving skin	100.00	99.61	2E08
Miliaria	22.22	99.25	EE02
Molluscum contagiosum	52.27	98.24	1E76
Morphoea	23.33	98.91	EB61
Mucosal melanotic macule	96.77	99.42	ED61
Mucous cyst	77.61	99.11	CA0C, EK70.Y
Mycetoma	100.00	99.95	1G60.0
Mycosis fungoides	9.38	99.10	2B01
Nail psoriasis	75.00	99.23	EA90.51
Necrobiosis lipoidica	75.00	99.54	EE80.1
Necrotising fasciitis	33.33	99.95	1B71
Neurofibroma	81.92	95.49	2F3Y
Neurofibromatosis	82.61	98.63	LD2D.1Z
Neutrophilic eccrine hidradenitis	100.00	99.91	EB2Y
Nevus spilus	44.44	99.49	2F20.2Y&XH40S8
Nodular acne	66.67	99.65	ED80.3
Nodular prurigo	50.00	98.92	EC91.0
Non-pyogenic bacterial infection	100.00	99.74	1C44
Onychomycosis	100.00	98.56	EE12.1
Onychoschizia	100.00	99.95	EE13.0
Oral aphthae or aphtha-like ulceration	66.67	99.68	DA01.10
Orf	100.00	99.88	1E75
Palmoplantar keratoderma	8.33	99.63	ED55
Palmoplantar pustulosis	46.15	99.07	EA90.42
Panniculitis	57.14	99.57	EF00
Papular palmoplantar keratoderma	66.67	99.82	EC20.32
Parapsoriasis	100.00	99.70	EK91.0, EA95, EA93
Pearly penile papules	100.00	99.95	EK71.Z
Pediculosis	100.00	98.89	1G00
Pellagra	100.00	99.80	5B5C.0
Pemphigoid	100.00	99.61	EB41
Pemphigus	20.00	98.72	EB40
Perforating dermatosis	0.00	99.81	EE70
Photoaging of the skin	66.67	99.47	EJ20
Phototoxic dermatitis	27.27	97.76	EK2Z
Pilomatricoma	33.33	99.76	2F22
Pilosebaceous hamartoma	100.00	99.82	LC01
Pitted keratolysis	100.00	99.91	1C44
Pityriasis	100.00	99.94	EA10, EA88.4, 1F2D.0, EA93, EA94
Pityriasis alba	53.33	99.79	EA88.4
Pityriasis amiantacea	100.00	99.96	EG30.2
Pityriasis lichenoides	37.14	99.25	EA93
Pityriasis rosea	63.93	98.04	EA10
Pityriasis rubra pilaris	75.00	99.64	EA94
Pityriasis versicolor	75.00	98.82	1F2D.0
Plane warts	0.00	99.73	1E81
Plaque psoriasis	85.71	98.14	EA90.0
Pleomorphic T cell lymphoma	0.00	99.93	2B0Y
Polydactyly	100.00	99.92	LB78
Polymorphic eruption of pregnancy	14.29	99.96	JA65.12
Polymorphic light eruption	66.67	99.11	EJ30.0
Porokeratosis	81.25	97.23	ED52
Poroma	52.00	98.44	2F22&XH8N28
Porphyria or pseudoporphyria affecting the skin	100.00	99.47	EB90.3
Port wine stain	62.96	99.30	LC50.1
Postinflammatory hypermelanosis	33.33	99.86	ED60.2
Pressure ulcer	97.46	97.51	EH90.Z
Prurigo	10.00	99.78	EC91
Pruritic urticarial papules and plaques of pregnancy	33.33	99.90	JA65.12
Pseudofolliculitis barbae	100.00	99.78	ED9Y
Psoriasis	77.67	94.65	EA90
Psoriatic arthritis	33.33	99.90	FA21
Pustular psoriasis	0.00	99.00	EA90.4
Pyoderma gangrenosum	31.82	99.53	EB21
Pyogenic abscess of the skin	15.38	99.29	1B75.3
Reactive arthropathy	100.00	99.83	FA11
Rosacea	71.15	97.04	ED90.0
Scabies	38.10	98.10	1G04
Scalded skin syndrome	100.00	99.98	EA50.2
Scar	27.78	99.25	EH94
Scarlet fever	33.33	99.95	1B50
Schamberg's disease	40.00	99.84	EF40.0
Schistosomiasis	100.00	99.95	1F86
Scleromyxoedema	66.67	99.95	EB90.11
Sebaceous gland hyperplasia	37.93	99.22	ED91.1
Seborrheic dermatitis	55.56	96.23	EA81
Seborrheic keratosis	90.01	78.80	2F21.0
Severe inflammatory acne	100.00	99.73	ED80.4
Skin tag	83.61	98.21	EK71.0
Spitz nevus	87.34	97.40	2F20.Y&XH9QV1
Squamous cell carcinoma	71.29	86.90	2C31
Staphylococcal scalded skin syndrome	0.00	99.95	EA50.2
Stasis dermatitis	72.73	97.25	EA86.0
Steatocystoma multiplex	0.00	99.98	2F22
Stevens Johnson syndrome or toxic epidermal necrolysis	100.00	99.52	EB13
Stretch marks	50.00	99.88	EE40.1
Stucco keratosis	100.00	99.65	2F21.Y
Subungual exostosis	100.00	99.94	EE13.Y
Superficial basal cell carcinoma	33.33	98.99	2C32.2
Syphilis	66.67	99.31	1A6Z
Syringoma	93.07	96.81	2F22
Telangiectasia	26.32	99.05	EF20
Tinea	64.80	91.90	1F28
Tinea nigra	100.00	99.91	1F2D.4
Tophaceous gout	100.00	99.97	FA25.20
Trichofolliculoma	0.00	99.91	LC01&XH0U05
Trichostasis spinulosa	100.00	99.95	ED9Y
Ulcer	25.00	99.85	ME60.2
Urticaria	79.81	97.21	EB05
Urticaria pigmentosa	23.81	99.69	2A21.10
Urticarial vasculitis	0.00	99.89	EF40.10
Varicella	35.71	99.34	1E90
Vascular lesion	92.77	97.24	XH8KN7
Vasculitis or capillaritis involving the skin	46.67	96.85	EF40
Venous lake	92.31	98.92	EF20.0
Venous ulcer	33.33	99.39	BD74.3
Verrucous epidermal nevus	100.00	99.86	LC00.Y
Vitiligo	96.55	99.16	ED63.0
Xanthelasma of eyelid	86.36	99.83	9A06.4
Xeroderma pigmentosum	100.00	99.97	LD27.1
Xerosis cutis or asteatosis	28.57	99.65	ED54
Yellow nail syndrome	66.67	99.98	EE11.1
Zoon balanitis	100.00	99.99	GB06.0Y
Zoster	50.00	97.24	1E91

Some conditions with high prevalence

Category	Sensitivity (%)	Specificity (%)	ICD-11 code
Acne	98.79	93.75	ED80.Z
Eczematous dermatitis	89.10	87.90	EA89
Psoriasis	77.67	94.65	EA90
Rosacea	71.15	97.04	ED90.0
Vitiligo	96.55	99.16	ED63.0
Zoster	50.00	97.24	1E91

Lesions suspected of malignancy and/or "tumor-like lesions"

Category	Sensitivity (%)	Specificity (%)	ICD-11 code
Acral lentiginous melanoma (primary)	71.88	98.61	2C30.3
Adnexal carcinoma	66.67	99.88	2C33
Amelanotic malignant melanoma	33.33	99.41	2E63.00
Angiosarcoma	100.00	99.45	2B56.1
Basal cell carcinoma	93.38	82.76	2C32
Carcinoma	66.67	99.83	2D41
Cutaneous T-cell lymphoma	33.33	99.24	2B0Z
Cutaneous melanoma	89.69	82.02	2C30
Dermatofibrosarcoma protuberans	33.33	99.38	2B53.Y
Kaposi sarcoma	48.39	97.90	2B57.Z
Merkel cell carcinoma	85.71	99.77	2C34
Metastatic malignant neoplasm involving skin	100.00	99.61	2E08
Mycetoma	100.00	99.95	1G60.0
Mycosis fungoides	9.38	99.10	2B01
Pleomorphic T cell lymphoma	0.00	99.93	2B0Y
Squamous cell carcinoma	71.29	86.90	2C31
Stevens Johnson syndrome or toxic epidermal necrolysis	100.00	99.52	EB13
Superficial basal cell carcinoma	33.33	98.99	2C32.2
Syphilis	66.67	99.31	1A6Z