ICD-10 B83.9
Billable / SpecificHelminthiasis, unspecified
About ICD-10-CM B83.9
ICD-10-CM code B83.9 represents Helminthiasis, unspecified. This is a billable/specific code in the Infectious and Parasitic Diseases chapter (block B83). The 2026 edition of ICD-10-CM B83.9 became effective on October 1, 2025.
Inclusion Terms / Approximate Synonyms
Clinical terms and conditions classified under B83.9. Per CMS ICD-10-CM Tabular 2026.
- Worms NOS
Type 1 Excludes
Pure excludes, these codes can never be coded together with B83.9. The conditions are mutually exclusive (e.g., congenital vs acquired forms).
- intestinal helminthiasis NOS (B82.0)
Medicare LCD Coverage for B83.9
Local Coverage Determinations (LCDs) from CMS MACs that list B83.9 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 B83.9.
1 Aetna
2 Medicare
CPT Codes Commonly Billed with B83.9
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 B83.9 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 |
|---|---|---|
| B83.9 | 1289 | 00000 |
Flags format (5 digits): Approximate · No Map · Combination · Scenario · Choice List. Source: CMS 2017 GEMs (final version).
Codes Adjacent To B83.9
Other codes in section B65-B83 (Helminthiases).
ICD-10 B83.9, Billing FAQ
Is ICD-10 code B83.9 billable? +
Yes, B83.9 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 B83.9? +
ICD-10 B83.9 includes: Worms NOS.
What codes are Type 1 Excludes for B83.9? +
Type 1 Excludes (never code together with B83.9): intestinal helminthiasis NOS (B82.0)
What CPT codes are commonly billed with B83.9? +
Procedures frequently paired with B83.9 include: 45307, 45309, 45308, 45303, 45321.
What ICD-9 codes does B83.9 map to? +
Per CMS GEMs, B83.9 maps to ICD-9 codes: 1289. 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 July 17, 2026.
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