ICD-10-CM 2027
ICD-10 code for neonatorum pemphigus
From the official ICD-10-CM alphabetic index entry “Pemphigus › neonatorum”. Page updated September 29, 2026.
About coding neonatorum pemphigus
The ICD-10-CM code for neonatorum pemphigus is L01.03 (Bullous impetigo).
Within L01.0 (impetigo), L01.03 is specifically for bullous impetigo. Related codes cover unspecified (L01.00), Non-bullous impetigo (L01.01), Bockhart's impetigo (L01.02) and other impetigo (L01.09).
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 602 (Cellulitis with MCC, relative weight 1.4273) and DRG 603 (Cellulitis without MCC, relative weight 0.8635), 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 neonatorum pemphigus ICD-10 codes
What is the ICD-10 code for neonatorum pemphigus?
- L01.03 — Bullous impetigo.
Is L01.03 billable?
- Yes. L01.03 is a billable/specific ICD-10-CM code valid for FY2027 (October 1, 2026 – September 30, 2027).
Can L01.03 be used as a principal diagnosis?
- Yes. The Medicare Code Editor doesn't restrict L01.03 as a principal diagnosis.
Is L01.03 a CC or MCC?
- No. L01.03 is neither a CC nor an MCC under MS-DRG v44.0.