ICD-10 B02.22
Billable / Specific CCPostherpetic trigeminal neuralgia
About ICD-10-CM B02.22
ICD-10-CM code B02.22 represents Postherpetic trigeminal neuralgia. This is a billable/specific code in the Infectious and Parasitic Diseases chapter (block B02). The 2026 edition of ICD-10-CM B02.22 became effective on October 1, 2025.
Coding Tips for B02.22
Specialist guidance from the PayerReady Medical Coding Team. Specificity warnings, HCC capture rules, sequencing notes.
B02.22 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.
Inpatient DRG Impact, CC
codes Postherpetic trigeminal neuralgia. As a Complication/Comorbidity (CC), this contributes to DRG severity adjustment when documented alongside the principal diagnosis.
Medicare LCD Coverage for B02.22
Local Coverage Determinations (LCDs) from CMS MACs that list B02.22 as a covered diagnosis.
Showing top 10 of 302 total . Click a CPT for full coverage scope.
Commercial Payer Coverage
Coverage policies from major commercial payers referencing B02.22.
1 Cigna
5 Medicare
CPT Codes Commonly Billed with B02.22
Procedures frequently paired with this diagnosis based on PayerReady's Dx↔Px linkage data.
- 64510 CMS LCD: Billing and Coding: Peripheral Nerve Blocks and Procedures for Chronic Pain CMS LCD
- 64632 CMS LCD: Billing and Coding: Peripheral Nerve Blocks and Procedures for Chronic Pain CMS LCD
- 64400 CMS LCD: Billing and Coding: Peripheral Nerve Blocks and Procedures for Chronic Pain CMS LCD
- 64600 CMS LCD: Billing and Coding: Peripheral Nerve Blocks and Procedures for Chronic Pain CMS LCD
- 64999 CMS LCD: Billing and Coding: Peripheral Nerve Blocks and Procedures for Chronic Pain CMS LCD
- 64624 CMS LCD: Billing and Coding: Peripheral Nerve Blocks and Procedures for Chronic Pain CMS LCD
- 64605 CMS LCD: Billing and Coding: Peripheral Nerve Blocks and Procedures for Chronic Pain CMS LCD
- 64405 CMS LCD: Billing and Coding: Peripheral Nerve Blocks and Procedures for Chronic Pain CMS LCD
- 64610 CMS LCD: Billing and Coding: Peripheral Nerve Blocks and Procedures for Chronic Pain CMS LCD
- 64505 CMS LCD: Billing and Coding: Peripheral Nerve Blocks and Procedures for Chronic Pain CMS LCD
Convert B02.22 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 |
|---|---|---|
| B02.22 | 05312 | 00000 |
Flags format (5 digits): Approximate · No Map · Combination · Scenario · Choice List. Source: CMS 2017 GEMs (final version).
Codes Adjacent To B02.22
Other codes in section B00-B09 (Viral infections characterized by skin and mucous membrane lesions).
ICD-10 B02.22, Billing FAQ
Is ICD-10 code B02.22 billable? +
Yes, B02.22 is a billable ICD-10-CM code that can appear as a primary or secondary diagnosis on claims.
Is B02.22 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 B02.22? +
Procedures frequently paired with B02.22 include: 64510, 64632, 64400, 64600, 64999.
What ICD-9 codes does B02.22 map to? +
Per CMS GEMs, B02.22 maps to ICD-9 codes: 05312. Useful for legacy data review and historical claim analysis.
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Reviewed by the PayerReady Medical Coding Team
Verified against the CMS 2026 code set on June 1, 2026.
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