All ICD10 Codes
L24Not billable, use a more specific code below

Irritant contact dermatitis

In Dermatitis and eczema (L20-L30), chapter 12: Diseases of the Skin and Subcutaneous Tissue

19 billable codes under L24: none are a CC or MCC; none map to an HCC.

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Instructional notes

Excludes1: not coded here, use a different code

Excludes2: not included here, code separately if applicable

  • 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)

Also applies, from Dermatitis and eczema (L20-L30)

These notes sit on L20-L30 and apply to every code under it, including L24.

Excludes2: not included here, code separately if applicable

  • chronic (childhood) granulomatous disease (D71-)
  • dermatitis gangrenosa (L08.0)
  • dermatitis herpetiformis (L13.0)
  • dry skin dermatitis (L85.3)
  • factitial dermatitis (L98.1)
  • perioral dermatitis (L71.0)
  • radiation-related disorders of the skin and subcutaneous tissue (L55-L59)
  • stasis dermatitis (I87.2)

Official coding guidelines

From the ICD-10-CM Official Guidelines for Coding and Reporting, FY 2027 (CMS and NCHS). Links open the PDF at the right page.

Covers assigning pressure ulcer codes by site and stage, including unstageable, healing, healed, and progressing ulcers, and coding healing or progressing non-pressure chronic ulcers.

Read Section I.C.12 (page 58)

All codes under L24

L24 can't be used on a claim. Pick a billable code below; grey headings group them.

L24 MS-DRGs

As the principal diagnosis, all 19 billable codes under L24 group to MS-DRG 606 or 607 (v44.0). Which one applies depends on procedures performed, secondary diagnoses (CC/MCC), and the patient's age and discharge status.

Other codes that refer to L24

Notes on these codes point to L24.

  • L23 Excludes2: irritant contact dermatitis (L24.-)
  • L25 Excludes1: irritant contact dermatitis (L24.-)

About the condition

Plain-language background from MedlinePlus (National Library of Medicine), not coding guidance.

Rashes

A rash is an area of irritated or swollen skin. Many rashes are itchy, red, painful, and irritated. Some rashes can also lead to blisters or patches of raw skin. Rashes are a symptom of many different medical problems. Other causes include irritating substances and allergies. Certain genes can make people more likely to get rashes.

Read more about rashes on MedlinePlus

Code history

Valid since FY2016, when ICD-10-CM took effect on October 1, 2015. No changes since.