Unspecified contact dermatitis (L25)

Instructional Notations

Type 1 Excludes 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.

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

Type 2 Excludes 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.

  • 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