L20
⚠ Non-billable
Atopic dermatitis
ICD-10-CM · FY2026 · Diseases of the Skin and Subcutaneous Tissue
Code
L20
System
ICD-10-CM
Billable
No — use specific code
Effective
FY2026
Chapter
Diseases of the Skin and Subcutaneous Tissue
Source
CMS / CDC NCHS
⚠ Verify before billing. Confirm against the current CMS/NCHS ICD-10-CM files and your payer's rules before claims submission.
Frequently asked questions
What is ICD-10 code L20?
ICD-10-CM code L20 represents Atopic dermatitis. It is a non-billable header code requiring a more specific subcategory in the Diseases of the Skin and Subcutaneous Tissue chapter, effective October 1, 2025 – September 30, 2026.
Is L20 billable?
No. L20 is a non-billable header. Select a more specific subcategory for claims submission.
What chapter is L20 in?
L20 belongs to the Diseases of the Skin and Subcutaneous Tissue chapter (L00–L99) of ICD-10-CM.
Related codes in the L20 category
L20.0
Besnier's prurigo
Billable
L20.8
Other atopic dermatitis
Non-billable
L20.9
Atopic dermatitis, unspecified
Billable
L20.81
Atopic neurodermatitis
Billable
L20.82
Flexural eczema
Billable
L20.83
Infantile (acute) (chronic) eczema
Billable
L20.84
Intrinsic (allergic) eczema
Billable
L20.89
Other atopic dermatitis
Billable
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