ICD-10-CM 2027
ICD-10 code for Toxocara infestation
From the official ICD-10-CM alphabetic index entry “Infestation › Toxocara (canis) (cati) (felis)”. Page updated September 29, 2026.
About coding Toxocara infestation
The ICD-10-CM code for Toxocara infestation is B83.0 (Visceral larva migrans).
Within B83 (other helminthiases), B83.0 is specifically for visceral larva migrans. Related codes cover Gnathostomiasis (B83.1), angiostrongyliasis due to Parastrongylus cantonensis (B83.2), Syngamiasis (B83.3), internal hirudiniasis (B83.4), other specified helminthiases (B83.8) and helminthiasis, unspecified (B83.9).
It is not a CC or MCC, so as a secondary diagnosis it doesn't change the MS-DRG severity level.
In MS-DRG v44.0, it is part of the grouping logic for DRG 867 (Other Infectious and Parasitic Diseases Diagnoses with MCC, relative weight 2.1859), DRG 868 (Other Infectious and Parasitic Diseases Diagnoses with CC, relative weight 1.0235) and DRG 869 (Other Infectious and Parasitic Diseases Diagnoses without CC/MCC, relative weight 0.6787), in MDC 18 (Infectious and Parasitic Diseases, Systemic or Unspecified Sites), as a principal or secondary diagnosis. The DRG a claim lands in depends on the principal diagnosis, procedures and any CC/MCC secondary diagnoses.
Common questions about Toxocara infestation ICD-10 codes
What is the ICD-10 code for Toxocara infestation?
- B83.0 — Visceral larva migrans.
Is B83.0 billable?
- Yes. B83.0 is a billable/specific ICD-10-CM code valid for FY2027 (October 1, 2026 – September 30, 2027).
Can B83.0 be used as a principal diagnosis?
- Yes. The Medicare Code Editor doesn't restrict B83.0 as a principal diagnosis.
Is B83.0 a CC or MCC?
- No. B83.0 is neither a CC nor an MCC under MS-DRG v44.0.