ICD-10-CM › L00-L99 › L20-L30 › L codes › L23

L23

Allergic contact dermatitis

Not billableICD-10-CM diagnosis code.

This code exists but cannot be submitted on its own. It groups the more specific codes beneath it.

A category header for its whole life, FY2016 onwards. It has never been valid for submission on its own.

Submit one of these 10 more specific codes instead:

  • L23.0 Allergic contact dermatitis due to metals
  • L23.1 Allergic contact dermatitis due to adhesives
  • L23.2 Allergic contact dermatitis due to cosmetics
  • L23.3 Allergic contact dermatitis due to drugs in contact with skin
  • L23.4 Allergic contact dermatitis due to dyes
  • L23.5 Allergic contact dermatitis due to other chemical products
  • L23.6 Allergic contact dermatitis due to food in contact with the skin
  • L23.7 Allergic contact dermatitis due to plants, except food
  • L23.8 Allergic contact dermatitis due to other agents (also a header)
  • L23.9 Allergic contact dermatitis, unspecified cause

What has happened to this code

Every change the publisher made, from 2012 to now. Entries marked draft are from the pre-implementation releases: ICD-10 took effect on 1 October 2015, so nothing before FY2016 was ever valid on a claim.

  1. FY2012 Added to the draft code set draft Allergic contact dermatitis

Official coding rules

Published by CDC for FY2027. A rule attached to a category binds every code beneath it, so the rules inherited from this code's ancestors are shown with the code they come from.

This code

Excludes1 - never coded here

  • allergy NOS (T78.40)
  • contact dermatitis NOS (L25.9)
  • dermatitis NOS (L30.9)

Excludes2 - not included here

  • dermatitis due to substances taken internally (L27.-)
  • dermatitis of eyelid (H01.1-)
  • diaper dermatitis (L22)
  • eczema of external ear (H60.5-)
  • irritant contact dermatitis (L24.-)
  • perioral dermatitis (L71.0)
  • radiation-related disorders of the skin and subcutaneous tissue (L55-L59)

Inherited from the L20-L30 section Dermatitis and eczema (L20-L30)

Excludes2 - not included here

  • chronic (childhood) granulomatous disease (D71-)
  • dermatitis gangrenosa (L08.0)
  • dermatitis herpetiformis (L13.0)
  • dry skin dermatitis (L85.3)
  • factitial dermatitis (L98.1)
  • stasis dermatitis (I87.2)

Note

  • In this block the terms dermatitis and eczema are used synonymously and interchangeably.