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L20-L30 ICD-10-CA block: Dermatitis and eczema

L20-L30 isn’t a code on its own. Choose one of the 59 codes beneath it, the one the documentation supports.

Official description

L20-L30

Dermatitis and eczema (L20-L30)

ICD-10-CA · Canada

Codes in L20-L30

L20-L30 isn’t a code on its own. Open the group that matches what the note documents.

L20Atopic dermatitis (3 codes)L21Seborrhoeic dermatitis (4 codes)L22Diaper [napkin] dermatitisL23Allergic contact dermatitis (10 codes)L24Irritant contact dermatitis (10 codes)L25Unspecified contact dermatitis (8 codes)L26Exfoliative dermatitisL27Dermatitis due to substances taken internally (5 codes)L28Lichen simplex chronicus and prurigo (3 codes)L29Pruritus (6 codes)L30Other dermatitis (8 codes)

Notes for L20-L30

As CIHI prints them, with any note L20-L30 takes from the headings above it.

Excludes

Conditions classified elsewhere.

  • Chronic (childhood) granulomatous disease (D71)dermatitis:• dry skin (L85.3)• factitial (L98.1)• gangrenosa (L08.0)• herpetiformis (L13.0)• perioral (L71.0)• stasis (I83.1-I83.2)radiation-related disorders of the skin and subcutaneous tissue (L55-L59)
  • Certain:• conditions originating in the perinatal period (P00-P96)• infectious and parasitic diseases (A00-B99)complications of pregnancy, childbirth and the puerperium (O00-O99)congenital malformations, deformations and chromosomal abnormalities (Q00-Q99)endocrine, nutritional and metabolic diseases (E00-E90)injury, poisoning and certain other consequences of external causes (S00-T98)lipomelanotic reticulosis (I89.8)neoplasms (C00-D48)symptoms, signs and abnormal clinical and laboratory findings, not elsewhere classified (R00-R99)systemic connective tissue disorders (M30-M36)From Chapter 12: Diseases of the skin and subcutaneous tissue (L00-L99)

Note

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

Where L20-L30 sits

  1. 1ChapterChapter 12: Diseases of the skin and subcutaneous tissue (L00-L99)
  2. 2Block L20-L30Dermatitis and eczema

Source and release

Data release
ICD-10-CA · FY 2026–2027
Effective date
Apr 1, 2026
Publisher
CIHI

This page is built from the ICD-10-CA catalog that Vero Codes reads when it suggests codes: Canadian Institute for Health Information’s FY 2026–2027 release, imported from the publisher’s file and checked against it. The description, notes and structured data come from the same record.

See L20-L30 in the CIHI source

Frequently asked questions

Is L20-L30 a valid ICD-10-CA code?

No. L20-L30 (Dermatitis and eczema) is a block heading in CIHI’s ICD-10-CA FY 2026–2027 release. It holds 59 codes; record the one the documentation supports.

Where is L20-L30 in ICD-10-CA?

L20-L30 sits under Chapter 12: Diseases of the skin and subcutaneous tissue (L00-L99).

What coding notes apply to L20-L30?

ICD-10-CA lists Note, Excludes notes for L20-L30, including those from the headings it sits under. They are listed on this page with where each one comes from.

Which ICD-10-CA release does this page use?

It uses CIHI’s FY 2026–2027 release, in effect from Apr 1, 2026 to Mar 31, 2027. It is a reference: confirm the code against the current list and the payer’s rules before you submit it.

Codes beside L20-L30

L00-L08Infections of the skin and subcutaneous tissueL10-L14Bullous disordersL40-L45Papulosquamous disordersL50-L54Urticaria and erythemaL55-L59Radiation-related disorders of the skin and subcutaneous tissueL60-L75Disorders of skin appendagesL80-L99Other disorders of the skin and subcutaneous tissue