Irritant contact dermatitis (L24) ICD-10-CM
The L24 code range covers irritant contact dermatitis with 23 ICD-10-CM diagnosis codes. 19 of them are billable and valid for claim submission in fiscal year 2027, and the category headers group them but cannot themselves be billed.
Type 1 Excludes
A type 1 excludes note is a pure excludes note. It means "NOT CODED HERE!" An Excludes1 note indicates that the code excluded should never be used at the same time as the code above the Excludes1 note. An Excludes1 is used when two conditions cannot occur together, such as a congenital form versus an acquired form of the same condition.
Type 2 Excludes
A type 2 excludes note represents "Not included here". An excludes2 note indicates that the condition excluded is not part of the condition represented by the code, but a patient may have both conditions at the same time. When an Excludes2 note appears under a code, it is acceptable to use both the code and the excluded code together, when appropriate.
Codes in the L24 Range 23 codes · 19 billable
- L24 Irritant contact dermatitisNon-billable
- 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 agentsNon-billable
- L24.81 Irritant contact dermatitis due to metals
- L24.89 Irritant contact dermatitis due to other agents
- L24.9 Irritant contact dermatitis, unspecified cause
- L24.A Irritant contact dermatitis due to friction or contact with body fluidsNon-billable
- L24.A0 Irritant contact dermatitis due to friction or contact with body fluids, unspecified
- L24.A1 Irritant contact dermatitis due to saliva
- L24.A2 Irritant contact dermatitis due to fecal, urinary or dual incontinence
- L24.A9 Irritant contact dermatitis due friction or contact with other specified body fluids
- L24.B Irritant contact dermatitis related to stoma or fistulaNon-billable
- L24.B0 Irritant contact dermatitis related to unspecified stoma or fistula
- L24.B1 Irritant contact dermatitis related to digestive stoma or fistula
- L24.B2 Irritant contact dermatitis related to respiratory stoma or fistula
- L24.B3 Irritant contact dermatitis related to fecal or urinary stoma or fistula
Clinical Terms in This Code Range
Definitions from the National Library of Medicine for conditions coded in the L24 range.
Irritant Contact Dermatitis
An inflammatory skin condition caused by direct contact between the skin and an irritating substance. It is typically manifested by erythema, mild edema, and scaling at the affected site.
About the L24 Code Range
Irritant contact dermatitis is skin inflammation caused by direct contact with an irritating substance. The L24 subdivisions separate it by cause.
Some identify what touched the skin, including detergents, oils and greases, solvents, cosmetics, drugs, food, plants, and metals. L24.A groups friction and contact with body fluids, with further distinctions for saliva, fecal or urinary incontinence, and other specified body fluids. L24.B groups dermatitis related to a stoma or fistula, distinguished as digestive, respiratory, or fecal or urinary. L24.9 identifies an unspecified cause.
Questions About This Page
How many billable codes are in the L24 range?
Of the 23 codes in this range, 19 are billable and valid for claim submission from October 1, 2026 through September 30, 2027. Category header codes group them but cannot be reported on claims.
What does the L24 range classify?
The range classifies irritant contact dermatitis. Each code links to its own reference page with billing status, MS-DRG grouping, coding notes, and clinical information.
Related References
Source: CMS FY 2027 ICD-10-CM Tabular List and order file, effective October 1, 2026 through September 30, 2027.
