L24

Header — not billable

Irritant contact dermatitis

The ICD-10 code for irritant contact dermatitis is L24.

L24 is a non-billable header code. It groups related conditions but cannot be used on its own for reimbursement — select one of the 12 more specific codes below.

Clinical notes

Excludes1 (not coded here)

An Excludes1 note is a pure exclusion: the excluded condition and this code should never be reported together, because the two conditions cannot occur at the same time (e.g. a congenital form vs. an acquired form of the same disease).

allergy NOS (T78.40)
contact dermatitis NOS (L25.9)
dermatitis NOS (L30.9)

Excludes2 (not included here)

An Excludes2 note means the excluded condition is not part of this one, but a patient can have both at the same time — in that case both codes may be reported together.

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)

Documentation support

General coding-documentation guidance — not a substitute for payer-specific requirements or professional coding judgment.

•This is a non-billable header code. Documentation must support a more specific child code before this diagnosis can be reported on a claim.
•Confirm the excluded condition(s) listed above are not also present — Excludes1 conditions cannot be coded together with this one.
•As a general rule, code to the highest level of specificity supported by the documentation in the medical record.

L24

Clinical notes

Excludes1 (not coded here)

Excludes2 (not included here)

Documentation support

Child codes under L24

Related codes in this category