L24
Irritant contact dermatitis
Not billable — category only FY2026 2025-10-01 → 2026-09-30
Exclusions 28 never code together
L24code
Excludes1
Excludes2
- allergic contact dermatitis (L23.-)L23.-L23.-L23.-
- dermatitis due to substances taken internally (L27.-)L27.-L27.-L27.-
- dermatitis of eyelid (H01.1-)H01.1-H01.1-H01.1-
- diaper dermatitis (L22)L22L22L22
- eczema of external ear (H60.5-)H60.5-H60.5-H60.5-
- perioral dermatitis (L71.0)L71.0L71.0L71.0
- radiation-related disorders of the skin and subcutaneous tissue (L55-L59)L55-L59L55-L59L55-L59
L20-L30block
Excludes2
- chronic (childhood) granulomatous disease (D71-)D71-
- dermatitis gangrenosa (L08.0)L08.0
- dermatitis herpetiformis (L13.0)L13.0
- dry skin dermatitis (L85.3)L85.3
- factitial dermatitis (L98.1)L98.1
- perioral dermatitis (L71.0)L71.0
- radiation-related disorders of the skin and subcutaneous tissue (L55-L59)L55-L59
- stasis dermatitis (I87.2)I87.2
L00-L99chapter
Excludes2
- certain conditions originating in the perinatal period (P04-P96)P04-P96
- certain infectious and parasitic diseases (A00-B99)A00-B99
- complications of pregnancy, childbirth and the puerperium (O00-O9A)O00-O9A
- congenital malformations, deformations, and chromosomal abnormalities (Q00-Q99)Q00-Q99
- endocrine, nutritional and metabolic diseases (E00-E88)E00-E88
- lipomelanotic reticulosis (I89.8)I89.8
- neoplasms (C00-D49)C00-D49
- symptoms, signs and abnormal clinical and laboratory findings, not elsewhere classified (R00-R94)R00-R94
- systemic connective tissue disorders (M30-M36)M30-M36
- viral warts (B07.-)B07.-
Excludes1 — never code together. The excluded condition and this one are mutually exclusive.
Excludes2 — not included here, but the patient may have both. Code both when documented.
Instructional notes 1
L20-L30block
Notes
- In this block the terms dermatitis and eczema are used synonymously and interchangeably.
Index entries leading here filed at null
No alphabetic index entry points at this code.
Subordinate codes 12
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 w 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 L24.9 Irritant contact dermatitis, unspecified cause L24.A Irritant cntct derm d/t friction or cntct with body fluids L24.B Irritant contact dermatitis related to stoma or fistula
Medications 3
MED-RT files conditions by MeSH, which carves the world differently from ICD-10. These are name matches on this code's description, offered as candidates — not as an assertion that they are this code.
Additional references
AHA Coding Clinic® Licence required
Official coding advice for this code. Published by the American Hospital Association. Not included in this installation.