L20Non-billableSave
L20 - Atopic dermatitis
ICD-10-CM Chapter 12: Diseases of the skin and subcutaneous tissue · L20-L30 Dermatitis and eczema (L20-L30) · Top-level category · FY2027
Coding Guidance
L20 is a non-billable heading. Report one of the 3 more specific codes below.
Includes, Excludes and Coding Notes
Excludes 2 — Not Included HereFrom L20-L30 Dermatitis and eczema (L20-L30)
Not part of this code; report both codes when the patient has both conditions.
- chronic (childhood) granulomatous disease (D71-)
- dermatitis gangrenosa (L08.0)
- dermatitis herpetiformis (L13.0)
- dry skin dermatitis (L85.3)
- factitial dermatitis (L98.1)
- perioral dermatitis (L71.0)
- radiation-related disorders of the skin and subcutaneous tissue (L55-L59)
- stasis dermatitis (I87.2)
NotesFrom L20-L30 Dermatitis and eczema (L20-L30)
Instructional notes from the ICD-10-CM tabular list.
- In this block the terms dermatitis and eczema are used synonymously and interchangeably.
Excludes 2 — Not Included HereFrom Chapter L00-L99
Not part of this code; report both codes when the patient has both conditions.
- certain conditions originating in the perinatal period (P04-P96)
- certain infectious and parasitic diseases (A00-B99)
- complications of pregnancy, childbirth and the puerperium (O00-O9A)
- congenital malformations, deformations, and chromosomal abnormalities (Q00-Q99)
- endocrine, nutritional and metabolic diseases (E00-E88)
- lipomelanotic reticulosis (I89.8)
- neoplasms (C00-D49)
- symptoms, signs and abnormal clinical and laboratory findings, not elsewhere classified (R00-R94)
- systemic connective tissue disorders (M30-M36)
- viral warts (B07.-)
More Specific Codes (3)
Related condition guides
Documentation requirements, coding pitfalls and FAQs for conditions coded with L20.
Chapter Information
Related ICD-10 Codes
More specific codes for L20
Other categories in this chapter
Codes at the same level as L20
- Staphylococcal scalded skin syndromeL00
- ImpetigoL01
- Cutaneous abscess, furuncle and carbuncleL02
- Cellulitis and acute lymphangitisL03
- Acute lymphadenitisL04
- Pilonidal cyst and sinusL05
- Other local infections of skin and subcutaneous tissueL08
- PemphigusL10
- Other acantholytic disordersL11
- PemphigoidL12
- Other bullous disordersL13
- Bullous disorders in diseases classified elsewhereL14
- Seborrheic dermatitisL21
- Diaper dermatitisL22
- Allergic contact dermatitisL23
- Irritant contact dermatitisL24
- Unspecified contact dermatitisL25
- Exfoliative dermatitisL26
- Dermatitis due to substances taken internallyL27
- Lichen simplex chronicus and prurigoL28
- PruritusL29
- Other and unspecified dermatitisL30
- PsoriasisL40
- ParapsoriasisL41
- Pityriasis roseaL42
- Lichen planusL43
- Other papulosquamous disordersL44
- Papulosquamous disorders in diseases classified elsewhereL45
- Exfoliation due to erythematous conditions according to extent of body surface involvedL49
- UrticariaL50
- Erythema multiformeL51
- Erythema nodosumL52
- Other erythematous conditionsL53
- Erythema in diseases classified elsewhereL54
- SunburnL55
- Other acute skin changes due to ultraviolet radiationL56
- Skin changes due to chronic exposure to nonionizing radiationL57
- RadiodermatitisL58
- Other disorders of skin and subcutaneous tissue related to radiationL59
- Nail disordersL60
33 more in this chapter.