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 2026, 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
About the L24 Code Range
The ICD-10 code L24 identifies irritant contact dermatitis, a skin reaction caused by exposure to various irritants such as detergents, oils, solvents, cosmetics, drugs, or body fluids. These codes capture specific irritants to accurately classify and document the type of irritant contact dermatitis encountered.
Each subcategory of L24 defines the source of skin irritation: for example, L24.0 is for dermatitis caused by detergents, while L24.1 covers irritant contact dermatitis caused by oils and greases (including automotive grease). Codes like L24.A1 specify dermatitis due to saliva, and L24.B1 describes dermatitis linked to digestive stomas or fistulas. Synonyms such as “oil contact dermatitis” or “peristomal dermatitis” help connect common terminology with these official codes. Using the ICD-10 code for irritant contact dermatitis ensures precise identification of the irritant agent, aiding in treatment planning and accurate health records.
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, 2025 through September 30, 2026. 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 2026 ICD-10-CM Tabular List and order file, effective October 1, 2025 through September 30, 2026.
