ICD-10 code for brain abscess chromomycosis

The ICD-10-CM code for brain abscess chromomycosis is B43.1 (Pheomycotic brain abscess).

Within B43 (chromomycosis and pheomycotic abscess), B43.1 is specifically for pheomycotic brain abscess. Related codes cover cutaneous chromomycosis (B43.0), subcutaneous pheomycotic abscess and cyst (B43.2), other forms of chromomycosis (B43.8) and chromomycosis, unspecified (B43.9).

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.