B00.1 Herpesviral vesicular dermatitis

Billable ICD-10-CM code, FY2026.

Applicable to

• Herpes simplex facialis
• Herpes simplex labialis
• Herpes simplex otitis externa
• Vesicular dermatitis of ear
• Vesicular dermatitis of lip

Applies from B00 Herpesviral [herpes simplex] infections

Excludes1 (never code together)

• congenital herpesviral infections (P35.2)

Excludes2 (not included here)

• anogenital herpesviral infection (A60.-)
• gammaherpesviral mononucleosis (B27.0-)
• herpangina (B08.5)

MS-DRG index

Defines the logic of DRG(s) 154-156 in MDC 03.

Approximate ICD-9-CM (GEMs)

• 054.73 Herpes simplex otitis externa (approximate)

Code annotations containing back-references to B00.1

Back-references to B00.1

• Type 1 Excludes: H62.4 Otitis externa in other diseases classified elsewhere ("herpes viral [herpes simplex] (B00.1)")

Back-references to B00

• Type 2 Excludes: B10 Other human herpesviruses ("herpes simplex (B00.-)")
• Type 2 Excludes: B10 Other human herpesviruses ("human herpesvirus NOS (B00.-)")
• Type 2 Excludes: B10 Other human herpesviruses ("human herpesvirus 1 and 2 (B00.-)")
• Code Also: D81.82 Activated Phosphoinositide 3-kinase Delta Syndrome [APDS] ("herpes virus infections (B00.-)")
• Code First: H67 Otitis media in diseases classified elsewhere ("viral disease NEC (B00-B34)")

Diagnosis Index entries for B00.1

• Blister (nonthermal) › fever
• Coldsore
• Dermatitis (eczematous) › herpesviral, vesicular (ear) (lip)
• Dermatitis (eczematous) › vesicular, herpesviral
• Fever (inanition) (of unknown origin) (persistent) (with chills) (with rigor) › blister
• Fever (inanition) (of unknown origin) (persistent) (with chills) (with rigor) › sore
• Herpes, herpesvirus, herpetic › facialis
• Herpes, herpesvirus, herpetic › febrilis
• Herpes, herpesvirus, herpetic › labialis
• Herpes, herpesvirus, herpetic › lip
• Herpes, herpesvirus, herpetic › simplex › external ear
• Otitis (acute) › externa › in (due to) › herpes (simplex) virus infection

Nearby codes

• B00 Herpesviral [herpes simplex] infections
• B00.0 Eczema herpeticum
• B00.1 Herpesviral vesicular dermatitis (this code)
• B00.2 Herpesviral gingivostomatitis and pharyngotonsillitis
• B00.3 Herpesviral meningitis
• B00.4 Herpesviral encephalitis
• B00.5 Herpesviral ocular disease
• B00.50 Herpesviral ocular disease, unspecified