ICD-10 Code for Herpes Zoster Outbreak
The ICD-10 code for herpes zoster (shingles) is B02, with specific subcategories available depending on anatomical location and complications. 1
Primary Coding Structure
- B02 is the base code for herpes zoster 1
- This code system allows for more specific classification based on the clinical presentation and affected body region 1
Common Subcategory Codes
While the evidence provided focuses primarily on anogenital herpes simplex (A60 codes) rather than comprehensive herpes zoster subcategories, the B02 code family follows a similar hierarchical structure for documentation purposes. 1
Key Clinical Context
- Herpes zoster presents as a unilateral vesicular eruption in a dermatomal distribution, typically preceded by prodromal pain 24-72 hours before skin findings appear 2
- The diagnosis is primarily clinical in immunocompetent patients with typical presentations 2, 3
- Laboratory confirmation using PCR, immunofluorescence, or viral culture is reserved for atypical presentations, immunocompromised patients, or when diagnostic uncertainty exists 2
Documentation Considerations
- The B02 code should be assigned when herpes zoster is the primary diagnosis or a significant comorbidity requiring clinical attention 4
- For billing and epidemiological purposes, be aware that hospitalization codes with herpes zoster may overestimate disease burden, as only 29-33% of hospitalizations with a zoster diagnosis code are actually attributable to zoster itself rather than coincidental findings 5
- Specific complications such as ophthalmic zoster, meningitis, or postherpetic neuralgia may require additional coding to accurately reflect disease severity 4