ICD-10 code for strongyloidiasis

The ICD-10-CM code for strongyloidiasis is B78.9 (Strongyloidiasis, unspecified). The official index lists 3 more specific codes, so check the documentation for details such as type, cause, site or severity before settling on B78.9.

Within B78, choose B78.9 (unspecified) only when documentation doesn't support a more specific option: intestinal strongyloidiasis (B78.0), cutaneous strongyloidiasis (B78.1) and disseminated strongyloidiasis (B78.7).

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 391 (Esophagitis, Gastroenteritis and Miscellaneous Digestive Disorders with MCC, relative weight 1.2392), DRG 392 (Esophagitis, Gastroenteritis and Miscellaneous Digestive Disorders without MCC, relative weight 0.7645), DRG 974 (HIV with Major Related Condition with MCC, relative weight 3.0506), DRG 975 (HIV with Major Related Condition with CC, relative weight 1.3252) and DRG 976 (HIV with Major Related Condition without CC/MCC, relative weight 0.8124), in MDC 06 (Diseases and Disorders of the Digestive System) and MDC 25 (Human Immunodeficiency Virus Infections), as a principal or secondary diagnosis. The DRG a claim lands in depends on the principal diagnosis, procedures and any CC/MCC secondary diagnoses.