MCMedicalCodingSoftware
L25

L25: Unspecified contact dermatitis

Non-billable headerICD-10-CM

L25 is a non-billable header ICD-10-CM code for unspecified contact dermatitis. It cannot be billed on its own: choose one of the more specific child codes below.

Excludes1: never code together

These conditions cannot occur together. Billing both on the same encounter is a denial.

  • allergic contact dermatitis (L23.-)
  • allergy NOS (T78.40)
  • dermatitis NOS (L30.9)
  • irritant contact dermatitis (L24.-)

Excludes2: not included here, but may coexist

The excluded condition is not part of this code, but a patient can have both. You may code both.

  • dermatitis due to ingested substances (L27.-)
  • dermatitis of eyelid (H01.1-)
  • eczema of external ear (H60.5-)
  • perioral dermatitis (L71.0)
  • radiation-related disorders of the skin and subcutaneous tissue (L55-L59)

Other codes that can never be billed with L25

Their own Excludes1 notes name this code, so the conflict is not listed above.

  • L23Allergic contact dermatitis
  • L24Irritant contact dermatitis
  • L53Other erythematous conditions
  • T61Toxic effect of noxious substances eaten as seafood
  • T62Toxic effect of other noxious substances eaten as food
  • T78.4Other and unspecified allergy

Risk adjustment

No CMS-HCC V28 category: this code does not change a RAF score.

Code history

Unchanged in every release from FY2024 to FY2027.

Code to one of these instead L25

8 child codes. Green means billable.

ICD-10-CMFY2027· effective October 1, 2026

Loaded directly from the CMS/NCHS ICD-10-CM public-domain release: see data sources and our editorial policy. If this page disagrees with the CMS tabular list, this page is wrong. Reference information for professional coders; not medical or billing advice.