2025
ICD-10-CM
Diagnosis
Code

L23 Allergic contact dermatitis

Non-billable
2016–2025

L23 is a non-billable/non-specific diagnosis code from the 2025 ICD-10-CM used to classify the following condition: Allergic contact dermatitis.

Type 1 excludes

Allergy NOS (T78.40)
Contact dermatitis NOS (L25.9)
Dermatitis NOS (L30.9)

Type 2 excludes

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)

Codes

Versions

2025
No changes
2024
No changes
2023
No changes
2022
No changes
2021
No changes
2020
No changes
2019
No changes
2018
No changes
2017
No changes
2016
New code