B83.1 – Gnathostomiasis

ICD-10-CM 2027 diagnosis code · Helminthiases

Billable code

ICD-10-CM code B83.1

Code: B83.1 (claims format: B831)
Description: Gnathostomiasis
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: B83

Notes for B83.1

Applicable to:

Wandering swelling

Notes inherited from parent codes

Instructional notes at a category or block level apply to every code below it.

B83 – Other helminthiases

Excludes1 (not coded here):

capillariasis NOS (B81.1)

Excludes2 (not included here):

intestinal capillariasis (B81.1)

Index terms for B83.1

Entries in the ICD-10-CM alphabetic index that lead to this code:

Related codes in B83

B83.0 – Visceral larva migransBillable
B83.2 – Angiostrongyliasis due to Parastrongylus cantonensisBillable
B83.3 – SyngamiasisBillable
B83.4 – Internal hirudiniasisBillable
B83.8 – Other specified helminthiasesBillable
B83.9 – Helminthiasis, unspecifiedBillable

Frequently asked questions

What is ICD-10 code B83.1?

B83.1 is the ICD-10-CM code for gnathostomiasis, in the block B65-B83 (Helminthiases).

Is B83.1 a billable code?

Yes. B83.1 is a billable/specific code that can be used to indicate a diagnosis for reimbursement purposes.

What category does B83.1 belong to?

It belongs to category B83 – Other helminthiases.

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.