ICD-10 B27.81
Billable / SpecificOther infectious mononucleosis with polyneuropathy
About ICD-10-CM B27.81
ICD-10-CM code B27.81 represents Other infectious mononucleosis with polyneuropathy. This is a billable/specific code in the Infectious and Parasitic Diseases chapter (block B27). The 2026 edition of ICD-10-CM B27.81 became effective on October 1, 2025.
Medicare LCD Coverage for B27.81
Local Coverage Determinations (LCDs) from CMS MACs that list B27.81 as a covered diagnosis.
Showing top 10 of 66 total . Click a CPT for full coverage scope.
Commercial Payer Coverage
Coverage policies from major commercial payers referencing B27.81.
2 Medicare
CPT Codes Commonly Billed with B27.81
Procedures frequently paired with this diagnosis based on PayerReady's Dx↔Px linkage data.
- 0107T CMS LCD: Billing and Coding: Nerve Conduction Studies and Electromyography CMS LCD
- 0108T CMS LCD: Billing and Coding: Nerve Conduction Studies and Electromyography CMS LCD
- 0106T CMS LCD: Billing and Coding: Nerve Conduction Studies and Electromyography CMS LCD
- 0110T CMS LCD: Billing and Coding: Nerve Conduction Studies and Electromyography CMS LCD
- 0109T CMS LCD: Billing and Coding: Nerve Conduction Studies and Electromyography CMS LCD
- 51784 CMS LCD: Billing and Coding: Nerve Conduction Studies and Electromyography CMS LCD
Convert B27.81 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 |
|---|---|---|
| B27.81 | 075 | 10000 |
Flags format (5 digits): Approximate · No Map · Combination · Scenario · Choice List. Source: CMS 2017 GEMs (final version).
Codes Adjacent To B27.81
Other codes in section B25-B34 (Other viral diseases).
ICD-10 B27.81, Billing FAQ
Is ICD-10 code B27.81 billable? +
Yes, B27.81 is a billable ICD-10-CM code that can appear as a primary or secondary diagnosis on claims.
What CPT codes are commonly billed with B27.81? +
Procedures frequently paired with B27.81 include: 0107T, 0108T, 0106T, 0110T, 0109T.
What ICD-9 codes does B27.81 map to? +
Per CMS GEMs, B27.81 maps to ICD-9 codes: 075. 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 May 31, 2026.
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