Other specified mycoses

This code signifies a fungal infection that is not explicitly classified elsewhere in the ICD-10-CM chapter for mycoses, but for which a specific identification of the fungus or clinical presentation has been made. It covers fungal diseases that are distinct from common mycoses like candidiasis, aspergillosis, or dermatophytosis, but are not rare enough to be considered unspecified.

Use this code when documentation clearly identifies a fungal infection by a specific organism that does not have its own unique ICD-10-CM code, or when the clinical manifestation of a fungal infection is specified but doesn't fit into a more precise category. Examples include infections caused by Penicillium marneffei (now Talaromyces marneffei) or Fusarium species when a more specific code is unavailable. Documentation should specify the fungal pathogen or the unique clinical presentation.

• Ensure the medical record clearly identifies the specific fungus or the distinct clinical presentation that warrants this "other specified" designation.
• Avoid using this code if a more specific code for the fungal infection exists (e.g., for candidiasis, aspergillosis, or cryptococcosis).
• Always review the entire B35-B49 range for a more precise code before defaulting to this "other specified" option.