DxCodebookFY2027 · Oct 1, 2026 – Sep 30, 2027

Category · FY2027

L24 Irritant contact dermatitis

  • Header · not billable

L24 is not billable. The category heads 19 billable codes in FY2027, grouped under 12 subdivisions.

Index → code

  • Itch, itchingbricklayer's → L24.5
  • Dermatitis (eczematous)caterpillar → L24.89
  • Exudatecausing irritant dermatitis → L24.A9

Where it sits

  1. Chapter 12 Diseases of the skin and subcutaneous tissue (L00-L99)
  2. L20-L30 Dermatitis and eczema (L20-L30)
  3. L24 Irritant contact dermatitis
Billable codes
19
Subdivisions
12
CC / MCC codes
0 / 0
HCC V28 codes
0
New FY2027
0
Index entries
76

Codes in L24

  1. L24.0
    Irritant contact dermatitis due to detergents
    Billable
  2. L24.1
    Irritant contact dermatitis due to oils and greases
    Billable
  3. L24.2
    Irritant contact dermatitis due to solvents
    Billable
    Inclusion terms 6

    Inclusion terms

    • Irritant contact dermatitis due to chlorocompound
    • Irritant contact dermatitis due to cyclohexane
    • Irritant contact dermatitis due to ester
    • Irritant contact dermatitis due to glycol
    • Irritant contact dermatitis due to hydrocarbon
    • Irritant contact dermatitis due to ketone
  4. L24.3
    Irritant contact dermatitis due to cosmetics
    Billable
  5. L24.4
    Irritant contact dermatitis due to drugs in contact with skin
    Billable
    Use additional code 1

    Use additional code

    • code for adverse effect, if applicable, to identify drug (T36-T50 with fifth or sixth character 5) T36 T50
  6. L24.5
    Irritant contact dermatitis due to other chemical products
    Billable
    Inclusion terms 4

    Inclusion terms

    • Irritant contact dermatitis due to cement
    • Irritant contact dermatitis due to insecticide
    • Irritant contact dermatitis due to plastic
    • Irritant contact dermatitis due to rubber
  7. L24.6
    Irritant contact dermatitis due to food in contact with skin
    Billable
    Excludes2 1

    Excludes2

    • dermatitis due to ingested food (L27.2) L27.2
  8. L24.7
    Irritant contact dermatitis due to plants, except food
    Billable
    Excludes2 1

    Excludes2

    • allergy NOS to pollen (J30.1) J30.1
  9. L24.8
    Irritant contact dermatitis due to other agents
    Header
  10. L24.81
    Irritant contact dermatitis due to metals
    Billable
    Inclusion terms 2

    Inclusion terms

    • Irritant contact dermatitis due to chromium
    • Irritant contact dermatitis due to nickel
  11. L24.89
    Irritant contact dermatitis due to other agents
    Billable
    Inclusion terms 1

    Inclusion terms

    • Irritant contact dermatitis due to dyes
  12. L24.9
    Irritant contact dermatitis, unspecified cause
    Billable
    Inclusion terms 1

    Inclusion terms

    • Irritant contact eczema NOS
  13. L24.A
    Irritant contact dermatitis due to friction or contact with body fluids
    Header
    Excludes1 1, Excludes2 1

    Excludes1

    • irritant contact dermatitis related to stoma or fistula (L24.B-) L24.B

    Excludes2

    • erythema intertrigo (L30.4) L30.4
  14. L24.A0
    Irritant contact dermatitis due to friction or contact with body fluids, unspecified
    Billable
  15. L24.A1
    Irritant contact dermatitis due to saliva
    Billable
  16. L24.A2
    Irritant contact dermatitis due to fecal, urinary or dual incontinence
    Billable
    Excludes1 1

    Excludes1

    • diaper dermatitis (L22) L22
  17. L24.A9
    Irritant contact dermatitis due friction or contact with other specified body fluids
    Billable
    Inclusion terms 2

    Inclusion terms

    • Irritant contact dermatitis related to endotracheal tube
    • Wound fluids, exudate
  18. L24.B
    Irritant contact dermatitis related to stoma or fistula
    Header
    Use additional code 1

    Use additional code

    • code to identify any artificial opening status (Z93.-), if applicable, for contact dermatitis related to stoma secretions Z93
  19. L24.B0
    Irritant contact dermatitis related to unspecified stoma or fistula
    Billable
    Inclusion terms 2

    Inclusion terms

    • Irritant contact dermatitis related to fistula NOS
    • Irritant contact dermatitis related to stoma NOS
  20. L24.B1
    Irritant contact dermatitis related to digestive stoma or fistula
    Billable
    Inclusion terms 3

    Inclusion terms

    • Irritant contact dermatitis related to gastrostomy
    • Irritant contact dermatitis related to jejunostomy
    • Irritant contact dermatitis related to saliva or spit fistula
  21. L24.B2
    Irritant contact dermatitis related to respiratory stoma or fistula
    Billable
    Inclusion terms 1

    Inclusion terms

    • Irritant contact dermatitis related to tracheostomy
  22. L24.B3
    Irritant contact dermatitis related to fecal or urinary stoma or fistula
    Billable
    Inclusion terms 3

    Inclusion terms

    • Irritant contact dermatitis related to colostomy
    • Irritant contact dermatitis related to enterocutaneous fistula
    • Irritant contact dermatitis related to ileostomy

Sources of each column.

Instructions

At L24

Excludes1

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

Excludes2

  • allergic contact dermatitis (L23.-) L23
  • dermatitis due to substances taken internally (L27.-) L27
  • dermatitis of eyelid (H01.1-) H01.1
  • diaper dermatitis (L22) L22
  • eczema of external ear (H60.5-) H60.5
  • perioral dermatitis (L71.0) L71.0
  • radiation-related disorders of the skin and subcutaneous tissue (L55-L59) L55 L59

Notes that also apply

Block L20-L30 instructions (Notes 1, Excludes2 8): printed on the block page.

Chapter 12 instructions (Excludes2 10): printed on the chapter 12 page.

Index entries

  • Itch, itchingbricklayer's → L24.5
  • Blister (nonthermal)beetle dermatitis → L24.89
  • Dermatitis (eczematous)blister beetle → L24.89
  • Dermatitis (eczematous)caterpillar → L24.89
  • Exudatecausing irritant dermatitis → L24.A9
  • Exudatewound fluids causing irritant dermatitis → L24.A9
  • Dermatitis (eczematous)due todetergents (contact) (irritant) → L24.0
  • Dermatitis (eczematous)due togreases NEC (contact) (irritant) → L24.1
  • Dermatitis (eczematous)due tooils NEC (contact) (irritant) → L24.1
  • Dermatitis (eczematous)due toacetone (contact) (irritant) → L24.2
  • Dermatitis (eczematous)due toalcohol (irritant) (skin contact) (substances in category T51) → L24.2
  • Dermatitis (eczematous)due tocarbon disulfide (contact) (irritant) → L24.2
  • Dermatitis (eczematous)due tochlorocompounds → L24.2
  • Dermatitis (eczematous)due tocyclohexanes → L24.2
  • Dermatitis (eczematous)due toesters → L24.2
  • Dermatitis (eczematous)due toglycols → L24.2
  • Dermatitis (eczematous)due tohydrocarbons → L24.2
  • Dermatitis (eczematous)due toketones → L24.2
  • Dermatitis (eczematous)due topaint solvent (contact) (irritant) → L24.2
  • Dermatitis (eczematous)due topetroleum products (contact) (irritant) (substances in T52.0) → L24.2
  • Dermatitis (eczematous)due tosolvents (contact) (irritant) (substances in categories T52) → L24.2
  • Dermatitis (eczematous)due totetrachlorethylene (contact) (irritant) → L24.2
  • Dermatitis (eczematous)due totoluene (contact) (irritant) → L24.2
  • Dermatitis (eczematous)due toturpentine (contact) → L24.2
  • Dermatitis (eczematous)due toacids (contact) (irritant) → L24.5
  • Dermatitis (eczematous)due toalkalis (contact) (irritant) → L24.5
  • Dermatitis (eczematous)due tocaustics (contact) (irritant) → L24.5
  • Dermatitis (eczematous)due toinsecticide in contact with skin → L24.5
  • Dermatitis (eczematous)due tonylon (contact) (irritant) → L24.5
  • Dermatitis (eczematous)due torubber (contact) → L24.5
  • Dermatitis (eczematous)due tochromium (contact) (irritant) → L24.81
  • Dermatitis (eczematous)due todichromate → L24.81
  • Dermatitis (eczematous)due tometals, metal salts (contact) (irritant) → L24.81
  • Dermatitis (eczematous)due tonickel (contact) (irritant) → L24.81
  • Dermatitis (eczematous)contact (occupational)irritant → L24.9
  • Dermatitis (eczematous)due toexternal irritant NEC → L24.9
  • Dermatitis (eczematous)due toexudate (wound fluids) → L24.A9
  • Dermatitis (eczematous)due tocosmetics (contact)irritant → L24.3
  • Dermatitis (eczematous)due toadhesive(s) (allergic) (contact) (plaster)irritant → L24.5
  • Dermatitis (eczematous)due toplasters (adhesive) (any) (allergic) (contact)irritant → L24.5

36 more, longer entries are not listed; the search box finds them by word.

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