ICD-10 B80
Billable / Specific CCEnterobiasis
About ICD-10-CM B80
ICD-10-CM code B80 represents Enterobiasis. This is a billable/specific code in the Infectious and Parasitic Diseases chapter (block B80). The 2026 edition of ICD-10-CM B80 became effective on October 1, 2025.
Coding Tips for B80
Specialist guidance from the PayerReady Medical Coding Team. Specificity warnings, HCC capture rules, sequencing notes.
B80 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.
Includes
- oxyuriasis
- pinworm infection
- threadworm infection
Inpatient DRG Impact, CC
codes Enterobiasis. As a Complication/Comorbidity (CC), this contributes to DRG severity adjustment when documented alongside the principal diagnosis.
Medicare LCD Coverage for B80
Local Coverage Determinations (LCDs) from CMS MACs that list B80 as a covered diagnosis.
Showing top 10 of 98 total . Click a CPT for full coverage scope.
Commercial Payer Coverage
Coverage policies from major commercial payers referencing B80.
2 Medicare
CPT Codes Commonly Billed with B80
Procedures frequently paired with this diagnosis based on PayerReady's Dx↔Px linkage data.
- 45307 CMS LCD: Billing and Coding: Colonoscopy/Sigmoidoscopy/Proctosigmoidoscopy CMS LCD
- 45309 CMS LCD: Billing and Coding: Colonoscopy/Sigmoidoscopy/Proctosigmoidoscopy CMS LCD
- 45308 CMS LCD: Billing and Coding: Colonoscopy/Sigmoidoscopy/Proctosigmoidoscopy CMS LCD
- 45303 CMS LCD: Billing and Coding: Colonoscopy/Sigmoidoscopy/Proctosigmoidoscopy CMS LCD
- 45321 CMS LCD: Billing and Coding: Colonoscopy/Sigmoidoscopy/Proctosigmoidoscopy CMS LCD
- 45347 CMS LCD: Billing and Coding: Colonoscopy/Sigmoidoscopy/Proctosigmoidoscopy CMS LCD
- 45320 CMS LCD: Billing and Coding: Colonoscopy/Sigmoidoscopy/Proctosigmoidoscopy CMS LCD
- 0885T CMS LCD: Billing and Coding: Colonoscopy/Sigmoidoscopy/Proctosigmoidoscopy CMS LCD
- 45327 CMS LCD: Billing and Coding: Colonoscopy/Sigmoidoscopy/Proctosigmoidoscopy CMS LCD
- 45317 CMS LCD: Billing and Coding: Colonoscopy/Sigmoidoscopy/Proctosigmoidoscopy CMS LCD
Convert B80 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 |
|---|---|---|
| B80 | 1274 | 00000 |
Flags format (5 digits): Approximate · No Map · Combination · Scenario · Choice List. Source: CMS 2017 GEMs (final version).
Codes Adjacent To B80
Other codes in section B65-B83 (Helminthiases).
ICD-10 B80, Billing FAQ
Is ICD-10 code B80 billable? +
Yes, B80 is a billable ICD-10-CM code that can appear as a primary or secondary diagnosis on claims.
Is B80 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 B80? +
Procedures frequently paired with B80 include: 45307, 45309, 45308, 45303, 45321.
What ICD-9 codes does B80 map to? +
Per CMS GEMs, B80 maps to ICD-9 codes: 1274. 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 August 30, 2026.
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