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ICD-10-CM 2027 diagnosis code

L24.BIrritant contact dermatitis related to stoma or fistula

Not billable — use a more specific code

L24.B is a header code, so it can't be reported by itself. Choose one of the 4 more specific codes beneath it.

Code last changed in FY2022 (effective October 1, 2021). Source: official FY2027 ICD-10-CM release from CDC/NCHS and CMS. Page updated September 29, 2026. About our data

About L24.B

L24.B is the ICD-10-CM diagnosis code for irritant contact dermatitis related to stoma or fistula. It belongs to category L24 (irritant contact dermatitis), block L20-L30 (dermatitis and eczema) and chapter 12 (diseases of the skin and subcutaneous tissue). It is a header code, so it can't be reported by itself; one of its 4 subcodes must be used instead.

Within L24 (irritant contact dermatitis), L24.B is specifically for irritant contact dermatitis related to stoma or fistula. Related codes cover due to detergents (L24.0), due to oils and greases (L24.1), due to solvents (L24.2), due to cosmetics (L24.3), due to drugs in contact with skin (L24.4), due to other chemical products (L24.5), due to food in contact with skin (L24.6), due to plants, except food (L24.7) and 3 more.

To report this condition, pick the subcode that matches the documentation: L24.B0 (fistula), L24.B1 (fistula), L24.B2 (fistula) and L24.B3 (fistula).

Use an additional code to identify any artificial opening status (Z93.-), if applicable, for contact dermatitis related to stoma secretions.

It was added in FY2022, effective October 1, 2021.

Specific codes under L24.B

Coding notes

Use additional codeAdd a secondary code to fully describe the condition
  • code to identify any artificial opening status (Z93.-), if applicable, for contact dermatitis related to stoma secretions

Notes that apply from higher levels

Instructions written at a parent level also apply to L24.B.

› From L24 Irritant contact dermatitis
Excludes1
Excludes2
  • 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)

Broader instructions also apply from L20-L30 Dermatitis and eczema and Chapter 12: Diseases of the skin and subcutaneous tissue.

Codes whose notes reference L24.B

Code history

  1. 2016
  2. 2017
  3. 2018
  4. 2019
  5. 2020
  6. 2021
  7. 2022
  8. 2023
  9. 2024
  10. 2025
  11. 2026
  12. 2027
  • FY2022 (effective 10/1/2021): Added
  • No changes since FY2022.

Common questions about L24.B

Is L24.B billable?

No. L24.B is a header code. Report one of its more specific subcodes instead.