| L23 | Allergic contact dermatitis |
| L23.0 | Allergic contact dermatitis due to metals |
| 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 |
| L23.4 | Allergic contact dermatitis due to dyes |
| L23.5 | Allergic contact dermatitis due to other chemical products |
| L23.6 | Allergic contact dermatitis due to food in contact with the skin |
| L23.7 | Allergic contact dermatitis due to plants, except food |
| L23.8 | Allergic contact dermatitis due to other agents |
| L23.81 | Allergic contact dermatitis due to animal (cat) (dog) dander |
| L23.89 | Allergic contact dermatitis due to other agents |
| L23.9 | Allergic contact dermatitis, unspecified cause |
| L24 | Irritant contact dermatitis |
| 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 |
| L24.3 | Irritant contact dermatitis due to cosmetics |
| L24.4 | Irritant contact dermatitis due to drugs in contact with skin |
| L24.5 | Irritant contact dermatitis due to other chemical products |
| L24.6 | Irritant contact dermatitis due to food in contact with skin |
| L24.7 | Irritant contact dermatitis due to plants, except food |
| L24.8 | Irritant contact dermatitis due to other agents |
| L24.81 | Irritant contact dermatitis due to metals |
| L24.89 | Irritant contact dermatitis due to other agents |
| L24.9 | Irritant contact dermatitis, unspecified cause |
| L25 | Unspecified contact dermatitis |
| L25.0 | Unspecified contact dermatitis due to cosmetics |
| L25.1 | Unspecified contact dermatitis due to drugs in contact with skin |
| L25.2 | Unspecified contact dermatitis due to dyes |
| L25.3 | Unspecified contact dermatitis due to other chemical products |
| L25.4 | Unspecified contact dermatitis due to food in contact with skin |
| L25.5 | Unspecified contact dermatitis due to plants, except food |
| L25.8 | Unspecified contact dermatitis due to other agents |
| L25.9 | Unspecified contact dermatitis, unspecified cause |