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Diseases of the skin and subcutaneous tissue (L00-L99)

Excludes 2:: certain conditions originating in the perinatal period (P04-P96)
certain infectious and parasitic diseases (A00-B99)
complications of pregnancy, childbirth and the puerperium (O00-O9A)
congenital malformations, deformations, and chromosomal abnormalities (Q00-Q99)
endocrine, nutritional and metabolic diseases (E00-E88)
lipomelanotic reticulosis (I89.8)
neoplasms (C00-D49)
symptoms, signs and abnormal clinical and laboratory findings, not elsewhere classified (R00-R94)
systemic connective tissue disorders (M30-M36)
viral warts (B07.-)

Dermatitis and eczema (L20-L30)

Note:: In this block the terms dermatitis and eczema are used synonymously and interchangeably.

Excludes 2:: chronic (childhood) granulomatous disease (D71)
dermatitis gangrenosa (L08.0)
dermatitis herpetiformis (L13.0)
dry skin dermatitis (L85.3)
factitial dermatitis (L98.1)
perioral dermatitis (L71.0)
radiation-related disorders of the skin and subcutaneous tissue (L55-L59)
stasis dermatitis (I87.2)

L20

Atopic dermatitis [+]

L21

Seborrheic dermatitis [+]

Excludes 2:

infective dermatitis (L30.3)
seborrheic keratosis (L82.-)

L22

Diaper dermatitis
Diaper erythema
Diaper rash
Psoriasiform diaper rash

L23

Allergic contact dermatitis [+]

Excludes 1:	allergy NOS (T78.40) contact dermatitis NOS (L25.9) dermatitis NOS (L30.9)
Excludes 2:	dermatitis due to substances taken internally (L27.-) dermatitis of eyelid (H01.1-) diaper dermatitis (L22) eczema of external ear (H60.5-) irritant contact dermatitis (L24.-) perioral dermatitis (L71.0) radiation-related disorders of the skin and subcutaneous tissue (L55-L59)

L23.0

Allergic contact dermatitis due to metals
Allergic contact dermatitis due to chromium
Allergic contact dermatitis due to nickel

L23.1

Allergic contact dermatitis due to adhesives

L23.2

Allergic contact dermatitis due to cosmetics

L23.3

Allergic contact dermatitis due to drugs in contact with skin

Use additional	code for adverse effect, if applicable, to identify drug (T36-T50 with fifth or sixth character 5)
Excludes 2:	dermatitis due to ingested drugs and medicaments (L27.0-L27.1)

L23.4

Allergic contact dermatitis due to dyes

L23.5

Allergic contact dermatitis due to other chemical products
Allergic contact dermatitis due to cement
Allergic contact dermatitis due to insecticide
Allergic contact dermatitis due to plastic
Allergic contact dermatitis due to rubber

L23.6

Allergic contact dermatitis due to food in contact with the skin

Excludes 2:

dermatitis due to ingested food (L27.2)

L23.7

Allergic contact dermatitis due to plants, except food

Excludes 2:

allergy NOS due to pollen (J30.1)

L23.8

Allergic contact dermatitis due to other agents [+]

L23.9

Allergic contact dermatitis, unspecified cause
Allergic contact eczema NOS

L24

Irritant contact dermatitis [+]

Excludes 1:	allergy NOS (T78.40) contact dermatitis NOS (L25.9) dermatitis NOS (L30.9)
Excludes 2:	allergic contact dermatitis (L23.-) dermatitis due to substances taken internally (L27.-) dermatitis of eyelid (H01.1-) diaper dermatitis (L22) eczema of external ear (H60.5-) perioral dermatitis (L71.0) radiation-related disorders of the skin and subcutaneous tissue (L55-L59)

L24.0

Irritant contact dermatitis due to detergents

L24.1

Irritant contact dermatitis due to oils and greases

L24.2

Irritant contact dermatitis due to solvents
Irritant contact dermatitis due to chlorocompound
Irritant contact dermatitis due to cyclohexane
Irritant contact dermatitis due to ester
Irritant contact dermatitis due to glycol
Irritant contact dermatitis due to hydrocarbon
Irritant contact dermatitis due to ketone

L24.3

Irritant contact dermatitis due to cosmetics

L24.4

Irritant contact dermatitis due to drugs in contact with skin

Use additional

code for adverse effect, if applicable, to identify drug (T36-T50 with fifth or sixth character 5)

L24.5

Irritant contact dermatitis due to other chemical products
Irritant contact dermatitis due to cement
Irritant contact dermatitis due to insecticide
Irritant contact dermatitis due to plastic
Irritant contact dermatitis due to rubber

L24.6

Irritant contact dermatitis due to food in contact with skin

Excludes 2:

dermatitis due to ingested food (L27.2)

L24.7

Irritant contact dermatitis due to plants, except food

Excludes 2:

allergy NOS to pollen (J30.1)

L24.8

Irritant contact dermatitis due to other agents [+]

L24.9

Irritant contact dermatitis, unspecified cause
Irritant contact eczema NOS

L24.A

Irritant contact dermatitis due to friction or contact with body fluids [+]

Excludes 1:	irritant contact dermatitis related to stoma or fistula (L24.B-)
Excludes 2:	erythema intertrigo (L30.4)

L24.B

Irritant contact dermatitis related to stoma or fistula [+]

Use additional

code to identify any artificial opening status (Z93.-), if applicable, for contact dermatitis related to stoma secretions

L25

Unspecified contact dermatitis [+]

Excludes 1:	allergic contact dermatitis (L23.-) allergy NOS (T78.40) dermatitis NOS (L30.9) irritant contact dermatitis (L24.-)
Excludes 2:	dermatitis due to ingested substances (L27.-) dermatitis of eyelid (H01.1-) eczema of external ear (H60.5-) perioral dermatitis (L71.0) radiation-related disorders of the skin and subcutaneous tissue (L55-L59)

L26

Exfoliative dermatitis
Hebra's pityriasis

Excludes 1:

Ritter's disease (L00)

L27

Dermatitis due to substances taken internally [+]

Excludes 1:	allergy NOS (T78.40)
Excludes 2:	adverse food reaction, except dermatitis (T78.0-T78.1) contact dermatitis (L23-L25) drug photoallergic response (L56.1) drug phototoxic response (L56.0) urticaria (L50.-)

L28

Lichen simplex chronicus and prurigo [+]

L29

Pruritus [+]

Excludes 1:

neurotic excoriation (L98.1)
psychogenic pruritus (F45.8)

L30

Other and unspecified dermatitis [+]

Excludes 2:

contact dermatitis (L23-L25)
dry skin dermatitis (L85.3)
small plaque parapsoriasis (L41.3)
stasis dermatitis (I87.2)