ICD-10 code for bilharziasis abscess

The ICD-10-CM code for bilharziasis abscess is B65.1 (Schistosomiasis due to Schistosoma mansoni [intestinal schistosomiasis]).

Within B65 (schistosomiasis [bilharziasis]), B65.1 is specifically for schistosomiasis due to Schistosoma mansoni [intestinal schistosomiasis]. Related codes cover schistosomiasis due to Schistosoma haematobium [urinary schistosomiasis] (B65.0), schistosomiasis due to Schistosoma japonicum (B65.2), Cercarial dermatitis (B65.3), other schistosomiasis (B65.8) and schistosomiasis, unspecified (B65.9).

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 441 (Disorders of Liver Except Malignancy, Cirrhosis or Alcoholic Hepatitis with MCC, relative weight 1.8219), DRG 442 (Disorders of Liver Except Malignancy, Cirrhosis or Alcoholic Hepatitis with CC, relative weight 0.9602) and DRG 443 (Disorders of Liver Except Malignancy, Cirrhosis or Alcoholic Hepatitis without CC/MCC, relative weight 0.6885), in MDC 07 (Diseases and Disorders of the Hepatobiliary System and Pancreas), as a principal or secondary diagnosis. The DRG a claim lands in depends on the principal diagnosis, procedures and any CC/MCC secondary diagnoses.