ICD-10-CM 2027
ICD-10 code for mixed types helminthiasis
From the official ICD-10-CM alphabetic index entry “Helminthiasis › mixed types (intestinal) (types classifiable to more than one of the titles B65.0-B81.3 and B81.8)”. Page updated September 29, 2026.
About coding mixed types helminthiasis
The ICD-10-CM code for mixed types helminthiasis is B81.4 (Mixed intestinal helminthiases).
Within B81 (other intestinal helminthiases, not elsewhere classified), B81.4 is specifically for mixed intestinal helminthiases. Related codes cover Anisakiasis (B81.0), intestinal capillariasis (B81.1), Trichostrongyliasis (B81.2), intestinal angiostrongyliasis (B81.3) and other specified intestinal helminthiases (B81.8).
As a secondary diagnosis it is a CC (complication or comorbidity), which can move an inpatient stay into the "with CC" MS-DRG of its family, unless the principal diagnosis excludes it.
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 mixed types helminthiasis ICD-10 codes
What is the ICD-10 code for mixed types helminthiasis?
- B81.4 — Mixed intestinal helminthiases.
Is B81.4 billable?
- Yes. B81.4 is a billable/specific ICD-10-CM code valid for FY2027 (October 1, 2026 – September 30, 2027).
Can B81.4 be used as a principal diagnosis?
- Yes. The Medicare Code Editor doesn't restrict B81.4 as a principal diagnosis.
Is B81.4 a CC or MCC?
- B81.4 is a CC (complication or comorbidity) under MS-DRG v44.0, unless excluded by the principal diagnosis.