ICD-10-CM 2027
ICD-10 code for infantile eczema
From the official ICD-10-CM alphabetic index entry “Eczema (acute) (chronic) (erythematous) (fissum) (rubrum) (squamous) › infantile (due to any substance)”. Page updated September 29, 2026.
About coding infantile eczema
The ICD-10-CM code for infantile eczema is L20.83 (Infantile (acute) (chronic) eczema). The official index lists 2 more specific codes, so check the documentation for details such as type, cause, site or severity before settling on L20.83.
Within L20.8 (other atopic dermatitis), L20.83 is specifically for infantile (acute) (chronic) eczema. Related codes cover atopic neurodermatitis (L20.81), Flexural eczema (L20.82), intrinsic (allergic) eczema (L20.84) and other atopic dermatitis (L20.89).
It is not a CC or MCC, so as a secondary diagnosis it doesn't change the MS-DRG severity level.
In MS-DRG v44.0, it is part of the grouping logic for DRG 606 (Minor Skin Disorders with MCC, relative weight 1.5728) and DRG 607 (Minor Skin Disorders without MCC, relative weight 0.8772), in MDC 09 (Diseases and Disorders of the Skin, Subcutaneous Tissue and Breast), as a principal or secondary diagnosis. The DRG a claim lands in depends on the principal diagnosis, procedures and any CC/MCC secondary diagnoses.
More specific infantile eczema codes (official index)
Common questions about infantile eczema ICD-10 codes
What is the ICD-10 code for infantile eczema?
- L20.83 — Infantile (acute) (chronic) eczema. More specific codes apply when the documentation supports them: L21.1, L21.1.
What is the ICD-10 code for intertriginous infantile eczema?
- L21.1 — Seborrheic infantile dermatitis.
What is the ICD-10 code for seborrheic infantile eczema?
- L21.1 — Seborrheic infantile dermatitis.
Is L20.83 billable?
- Yes. L20.83 is a billable/specific ICD-10-CM code valid for FY2027 (October 1, 2026 – September 30, 2027).
Can L20.83 be used as a principal diagnosis?
- Yes. The Medicare Code Editor doesn't restrict L20.83 as a principal diagnosis.
Is L20.83 a CC or MCC?
- No. L20.83 is neither a CC nor an MCC under MS-DRG v44.0.