ICD-10-CM 2027
ICD-10 code for cradle cap
From the official ICD-10-CM alphabetic index entry “Cradle cap”. Page updated September 29, 2026.
About coding cradle cap
The ICD-10-CM code for cradle cap is L21.0 (Seborrhea capitis).
Within L21 (seborrheic dermatitis), L21.0 is specifically for Seborrhea capitis. Related codes cover seborrheic infantile dermatitis (L21.1), other seborrheic dermatitis (L21.8) and unspecified (L21.9).
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.
Common questions about cradle cap ICD-10 codes
What is the ICD-10 code for cradle cap?
- L21.0 — Seborrhea capitis.
Is L21.0 billable?
- Yes. L21.0 is a billable/specific ICD-10-CM code valid for FY2027 (October 1, 2026 – September 30, 2027).
Can L21.0 be used as a principal diagnosis?
- Yes. The Medicare Code Editor doesn't restrict L21.0 as a principal diagnosis.
Is L21.0 a CC or MCC?
- No. L21.0 is neither a CC nor an MCC under MS-DRG v44.0.