ICD-10-CM 2027
ICD-10 code for napkin dermatitis
From the official ICD-10-CM alphabetic index entry “Dermatitis (eczematous) › napkin”. Page updated September 29, 2026.
About coding napkin dermatitis
The ICD-10-CM code for napkin dermatitis is L22 (Diaper dermatitis).
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), DRG 607 (Minor Skin Disorders without MCC, relative weight 0.8772) and DRG 795 (Normal Newborn, relative weight 0.2022), in MDC 09 (Diseases and Disorders of the Skin, Subcutaneous Tissue and Breast) and MDC 15 (Newborns and Other Neonates with Conditions Originating in the Perinatal Period), as a principal or secondary diagnosis. The DRG a claim lands in depends on the principal diagnosis, procedures and any CC/MCC secondary diagnoses.
It has been part of ICD-10-CM since the code set took effect on October 1, 2015 and hasn't changed since.
Common questions about napkin dermatitis ICD-10 codes
What is the ICD-10 code for napkin dermatitis?
- L22 — Diaper dermatitis.
Is L22 billable?
- Yes. L22 is a billable/specific ICD-10-CM code valid for FY2027 (October 1, 2026 – September 30, 2027).
Can L22 be used as a principal diagnosis?
- Yes. The Medicare Code Editor doesn't restrict L22 as a principal diagnosis.
Is L22 a CC or MCC?
- No. L22 is neither a CC nor an MCC under MS-DRG v44.0.