B81.1 – Intestinal capillariasis
ICD-10-CM 2027 diagnosis code · Helminthiases
ICD-10-CM code
B81.1
- Code
B81.1(claims format:B811)- Description
- Intestinal capillariasis
- Billable
- Yes – valid for HIPAA-covered transactions
- Valid for
- Dates of service October 1, 2026 – September 30, 2027 (FY2027)
- Chapter
- 1. Certain infectious and parasitic diseases (A00-B99)
- Block
- B65-B83 Helminthiases
- Parent codes
- B81
Notes for B81.1
Applicable to:
- Capillariasis NOS
- Infection due to Capillaria philippinensis
Excludes2 (not included here):
- hepatic capillariasis (B83.8)
Notes inherited from parent codes
Instructional notes at a category or block level apply to every code below it.
B81 – Other intestinal helminthiases, not elsewhere classified
Index terms for B81.1
Entries in the ICD-10-CM alphabetic index that lead to this code:
Related codes in B81
Frequently asked questions
What is ICD-10 code B81.1?
B81.1 is the ICD-10-CM code for intestinal capillariasis, in the block B65-B83 (Helminthiases).
Is B81.1 a billable code?
Yes. B81.1 is a billable/specific code that can be used to indicate a diagnosis for reimbursement purposes.
What category does B81.1 belong to?
It belongs to category B81 – Other intestinal helminthiases, not elsewhere classified.
Source: CDC/NCHS ICD-10-CM FY2027 code files, tabular list and index. Reference only – code assignment must follow the official ICD-10-CM guidelines and documentation in the medical record.