ICD-10 B02.0
Billable / Specific CCZoster encephalitis
About ICD-10-CM B02.0
ICD-10-CM code B02.0 represents Zoster encephalitis. This is a billable/specific code in the Infectious and Parasitic Diseases chapter (block B02). The 2026 edition of ICD-10-CM B02.0 became effective on October 1, 2025.
Coding Tips for B02.0
Specialist guidance from the PayerReady Medical Coding Team. Specificity warnings, HCC capture rules, sequencing notes.
B02.0 is designated CC for MS-DRG grouping. On inpatient claims, this code can shift the DRG to the with-CC variant when documented as a present-on-admission secondary diagnosis. Hospital CDI programs flag CC opportunities during chart review. Failure to capture this code may leave 30 to 80 percent of the inpatient stay revenue unrealized.
Inclusion Terms / Approximate Synonyms
Clinical terms and conditions classified under B02.0. Per CMS ICD-10-CM Tabular 2026.
- Zoster meningoencephalitis
Inpatient DRG Impact, CC
codes Zoster encephalitis. As a Complication/Comorbidity (CC), this contributes to DRG severity adjustment when documented alongside the principal diagnosis.
Medicare LCD Coverage for B02.0
Local Coverage Determinations (LCDs) from CMS MACs that list B02.0 as a covered diagnosis.
Showing top 10 of 109 total . Click a CPT for full coverage scope.
Commercial Payer Coverage
Coverage policies from major commercial payers referencing B02.0.
1 Cigna
5 Medicare
CPT Codes Commonly Billed with B02.0
Procedures frequently paired with this diagnosis based on PayerReady's Dx↔Px linkage data.
- 64596 CMS LCD: Billing and Coding: Peripheral Nerve Stimulation CMS LCD
- 64598 CMS LCD: Billing and Coding: Peripheral Nerve Stimulation CMS LCD
- 64570 CMS LCD: Billing and Coding: Peripheral Nerve Stimulation CMS LCD
- 64597 CMS LCD: Billing and Coding: Peripheral Nerve Stimulation CMS LCD
- 64569 CMS LCD: Billing and Coding: Peripheral Nerve Stimulation CMS LCD
- 64581 CMS LCD: Billing and Coding: Peripheral Nerve Stimulation CMS LCD
- 64590 CMS LCD: Billing and Coding: Peripheral Nerve Stimulation CMS LCD
- 64555 CMS LCD: Billing and Coding: Peripheral Nerve Stimulation CMS LCD
- 64595 CMS LCD: Billing and Coding: Peripheral Nerve Stimulation CMS LCD
- 64585 CMS LCD: Billing and Coding: Peripheral Nerve Stimulation CMS LCD
Convert B02.0 to ICD-9-CM
Per CMS General Equivalence Mappings (GEMs), useful for legacy data review and historical claim analysis.
| ICD-10 | ICD-9 | Mapping Flags |
|---|---|---|
| B02.0 | 05319 | 10000 |
Flags format (5 digits): Approximate · No Map · Combination · Scenario · Choice List. Source: CMS 2017 GEMs (final version).
Codes Adjacent To B02.0
Other codes in section B00-B09 (Viral infections characterized by skin and mucous membrane lesions).
ICD-10 B02.0, Billing FAQ
Is ICD-10 code B02.0 billable? +
Yes, B02.0 is a billable ICD-10-CM code that can appear as a primary or secondary diagnosis on claims.
What other names or terms map to B02.0? +
ICD-10 B02.0 includes: Zoster meningoencephalitis.
Is B02.0 a CC or MCC for inpatient DRG? +
Yes, this code is designated as CC. Documenting as a secondary diagnosis on inpatient claims can shift the DRG to a higher-weighted category.
What CPT codes are commonly billed with B02.0? +
Procedures frequently paired with B02.0 include: 64596, 64598, 64570, 64597, 64569.
What ICD-9 codes does B02.0 map to? +
Per CMS GEMs, B02.0 maps to ICD-9 codes: 05319. Useful for legacy data review and historical claim analysis.
Get the full PayerReady toolkit
Free access to CPT/ICD-10 lookup, denial appeals, fee comparator, and claim auditing with credentialing enrollment.
Start free →Run this code through our claim audit tool
Check NCCI bundling, MUE limits, and modifier logic before submission.
Try the auditor →Did this page help?
Quick signal so we know what to improve.
If you want a code reference page that doesn't exist yet, email coding@payerready.com.
Tell us what's missing or wrong: coding@payerready.com. We respond within 5 business days.
Reviewed by the PayerReady Medical Coding Team
Verified against the CMS 2026 code set on June 1, 2026.
Powered by 11K CPT · 98K ICD-10 · 860K MPFS rates · 4.5M NCCI edits · 9.5M NPIs. Our data methodology · About our coding team