B81
Non-Billable

Other intestinal helminthiases, not elsewhere classified

Non-Billable / Non-Specific Code

What is Other intestinal helminthiases, not elsewhere classified?

ICD-10-CM B81 is the diagnosis code for Other intestinal helminthiases, not elsewhere classified. This code falls under the section "Helminthiases" within Chapter 1 — Certain infectious and parasitic diseases (A00-B99). It is a non-billable/non-specific ICD-10-CM code that should not be used for reimbursement. A more specific sub-code is required for billing. Medical coders and healthcare providers use this code to document and classify diagnoses in electronic health records, insurance claims, and clinical databases.

⛔ Excludes1

Coding Guidelines for B81

⛔ Type 1 Excludes (Never code together)

The following conditions should never be coded at the same time as B81. They are mutually exclusive:

  • angiostrongyliasis due to:
  • Angiostrongylus cantonensis (B83.2)
  • Parastrongylus cantonensis (B83.2)

ICD-10-CM Code Hierarchy

Understanding where B81 sits in the ICD-10-CM classification helps ensure proper coding:

Current CodeB81 — Other intestinal helminthiases, not elsewhere classified
Sub-Codes 6 entries
B81.0AnisakiasisBillableB81.1Intestinal capillariasisBillableB81.2TrichostrongyliasisBillableB81.3Intestinal angiostrongyliasisBillableB81.4Mixed intestinal helminthiasesBillableB81.8Other specified intestinal helminthiasesBillable
Related Codes

Frequently Asked Questions

Is B81 a billable ICD-10-CM code?

No, B81 is a non-billable/non-specific code. You should use a more specific sub-code for billing and reimbursement.

What does B81 mean?

B81 is the ICD-10-CM diagnosis code for "Other intestinal helminthiases, not elsewhere classified". It is used by healthcare providers to classify and document this condition in medical records and insurance claims.

What section is B81 in?

B81 is located in Section B65-B83 — "Helminthiases" within Chapter 1 of the ICD-10-CM Tabular List.

What are the sub-codes of B81?

B81 has 6 sub-code(s) that provide more specific detail: B81.0, B81.1, B81.2, B81.3, B81.4 and more.

When should I use B81?

Use B81 when the patients documented diagnosis matches "Other intestinal helminthiases, not elsewhere classified" and the clinical documentation supports this level of specificity. Always verify with the latest ICD-10-CM guidelines and payer requirements.

People Also Ask

What is the ICD-10 code for Other intestinal helminthiases, not elsewhere classified?

The ICD-10-CM code for Other intestinal helminthiases, not elsewhere classified is B81.

Can B81 be used for primary diagnosis?

No, B81 is non-billable. Use a more specific sub-code for primary diagnosis billing.

What chapter is B81 in?

B81 is in Chapter 1 of the ICD-10-CM Tabular List.

What conditions are excluded from B81?

Type 1 Excludes for B81 include: angiostrongyliasis due to:; Angiostrongylus cantonensis (B83.2); Parastrongylus cantonensis (B83.2).

Is B81 valid for 2026?

Yes, B81 is a valid ICD-10-CM code for the 2026 fiscal year, subject to official CMS updates.

See Also

← PreviousB80EnterobiasisNext →B81.0Anisakiasis
Code Details
B81
Other intestinal helminthiases, not elsewhere classified
Non-Billable / Non-Specific Code
1 — Certain infectious and parasitic diseases (A00-B99)
B65-B83 — Helminthiases
2026 ICD-10-CM